NB, NBG, MTBInstallation and operating instructions

NB NBG MTBInstallation and operating instructions(all available languages)http://net.grundfos.com/qr/i/QR96483177

GRUNDFOS INSTRUCTIONS

NB, NBG, MTB

English (GB)Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Български (BG)Упътване за монтаж и експлоатация. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Čeština (CZ)Montážní a provozní návod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Deutsch (DE)Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Dansk (DK)Monterings- og driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Eesti (EE)Paigaldus- ja kasutusjuhend. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Español (ES)Instrucciones de instalación y funcionamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . 254

Suomi (FI)Asennus- ja käyttöohjeet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297

Français (FR)Notice d'installation et de fonctionnement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

Ελληνικά (GR)Οδηγίες εγκατάστασης και λειτουργίας . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

Hrvatski (HR)Montažne i pogonske upute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

Magyar (HU)Telepítési és üzemeltetési utasítás . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463

Italiano (IT)Istruzioni di installazione e funzionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Lietuviškai (LT)Įrengimo ir naudojimo instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545

Latviešu (LV)Uzstādīšanas un ekspluatācijas instrukcija . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 586

Nederlands (NL)Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 627

Polski (PL)Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670

3

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con

tent

s

Português (PT)Instruções de instalação e funcionamento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 714

Română (RO)Instrucţiuni de instalare şi utilizare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 756

Srpski (RS)Uputstvo za instalaciju i rad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 797

Svenska (SE)Monterings- och driftsinstruktion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838

Slovensko (SI)Navodila za montažo in obratovanje . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 878

Slovenčina (SK)Návod na montáž a prevádzku . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 919

Türkçe (TR)Montaj ve kullanım kılavuzu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 959

Українська (UA)Інструкції з монтажу та експлуатації . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1001

中文 (CN)安装和使用说明书 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1047

日本語 (JP)

取扱説明書. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1084

Macedonian (MK)Упатства за монтирање и ракување . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1122

(AR) العربيةالتشغيل و التركيب تعليمات . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1167

Shqip (SQ)Udhëzimet e instalimit dhe funksionimit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1205

4 NB, NBG, MTB

Table of contents

English (GB) Installation and operating instructions

Original installation and operating instructions

Table of contents1. General information . . . . . . . . . . . . . 51.1 Hazard statements . . . . . . . . . . . . . . 51.2 Notes . . . . . . . . . . . . . . . . . . . . . 6

2. Product introduction . . . . . . . . . . . . 62.1 Product description . . . . . . . . . . . . . . 62.2 Identification. . . . . . . . . . . . . . . . . . 7

3. Receiving the product. . . . . . . . . . . . 143.1 Performance test . . . . . . . . . . . . . . . 143.2 Transporting the product . . . . . . . . . . . 143.3 Inspecting the product . . . . . . . . . . . . 143.4 Storage after delivery . . . . . . . . . . . . . 14

4. Installing the product . . . . . . . . . . . . 154.1 Mounting of motor on bare shaft pumps . . . 154.2 Location . . . . . . . . . . . . . . . . . . . . 18

5. Mechanical installation . . . . . . . . . . . 205.1 Lifting the product . . . . . . . . . . . . . . . 205.2 Installation positions . . . . . . . . . . . . . 215.3 Foundation of NB, NBG, MTB pump

without base frame . . . . . . . . . . . . . . 215.4 Foundation of NB, NBG pump with base

frame . . . . . . . . . . . . . . . . . . . . . 225.5 Pipes . . . . . . . . . . . . . . . . . . . . . 265.6 Vibration damping. . . . . . . . . . . . . . . 275.7 Expansion joints. . . . . . . . . . . . . . . . 275.8 Measuring instruments . . . . . . . . . . . . 285.9 Condensation cover. . . . . . . . . . . . . . 28

6. Electrical connection . . . . . . . . . . . . 296.1 Motor protection. . . . . . . . . . . . . . . . 296.2 Cable entry and screwed connection, MG

motor . . . . . . . . . . . . . . . . . . . . . 296.3 Synchronous motors . . . . . . . . . . . . . 306.4 Frequency converter operation . . . . . . . . 30

7. Startup . . . . . . . . . . . . . . . . . . . . 317.1 Flushing the pipe system . . . . . . . . . . . 317.2 Priming the product . . . . . . . . . . . . . . 317.3 Checking the direction of rotation . . . . . . 327.4 Starting up the pump . . . . . . . . . . . . . 327.5 Shaft seal run-in period . . . . . . . . . . . . 337.6 Number of motors starting or stopping . . . . 337.7 Reference readings of monitoring

equipment . . . . . . . . . . . . . . . . . . . 33

8. Storing the product . . . . . . . . . . . . . 34

9. Servicing the product . . . . . . . . . . . . 349.1 Contaminated products . . . . . . . . . . . . 34

9.2 Service kits . . . . . . . . . . . . . . . . . . 34

10. Maintaining the product. . . . . . . . . . . 3410.1 Maintenance of the pump. . . . . . . . . . . 3410.2 Maintaining the mechanical shaft seals . . . 3410.3 Maintaining the motor . . . . . . . . . . . . . 3510.4 Lubricationof motor bearings . . . . . . . . . 3510.5 Applying sealant to plugs . . . . . . . . . . . 35

11. Taking the product out of operation . . . . 3511.1 Protecting the pump during periods of

inactivity and frost. . . . . . . . . . . . . . . 35

12. Fault finding the product . . . . . . . . . . 36

13. Technical data . . . . . . . . . . . . . . . . 3913.1 Operating conditions . . . . . . . . . . . . . 3913.2 Electrical data . . . . . . . . . . . . . . . . . 4113.3 Sound pressure level . . . . . . . . . . . . . 42

14. Disposing of the product . . . . . . . . . . 43

1. General informationRead this document before you install theproduct. Installation and operation mustcomply with local regulations and acceptedcodes of good practice.

1.1 Hazard statementsThe symbols and hazard statements below mayappear in Grundfos installation and operatinginstructions, safety instructions and serviceinstructions.

DANGERIndicates a hazardous situation which, ifnot avoided, will result in death or seriouspersonal injury.

WARNINGIndicates a hazardous situation which, ifnot avoided, could result in death orserious personal injury.

CAUTIONIndicates a hazardous situation which, ifnot avoided, could result in minor ormoderate personal injury.

The hazard statements are structured in the followingway:

SIGNAL WORDDescription of the hazardConsequence of ignoring the warning• Action to avoid the hazard.

5

Engl

ish

(GB)

1.2 NotesThe symbols and notes below may appear inGrundfos installation and operating instructions,safety instructions and service instructions.

Observe these instructions for explosion-proof products.

A blue or grey circle with a white graphicalsymbol indicates that an action must betaken.

A red or grey circle with a diagonal bar,possibly with a black graphical symbol,indicates that an action must not be takenor must be stopped.

If these instructions are not observed, itmay result in malfunction or damage to theequipment.

Tips and advice that make the work easier.

2. Product introduction

2.1 Product descriptionNB, NBG, MTB are non-self-priming, single stage,centrifugal volute pumps with axial inlet port andradial outlet port.NB pumps comply with EN 733.NBG pumps comply with ISO 2858.

2.1.1 Pumped liquids of NB, NBGNB, NBG pumps are suitable for clean, thin, non-explosive liquids without solid particles or fibres. Thepumped liquid must not attack the pump materialschemically.

2.1.2 Pumped liquids of MTB

DANGERFlammable materialDeath or serious personal injury‐ The pump must not be used for the

pumping of inflammable liquids, suchas diesel fuel, petrol or similar liquids.

MTB pumps are suitable for industrial machine toolapplications, such as:• machining centres• cooling systems• grinding machines• lathes• parts cleaning systems.MTB pumps are designed specifically for the transferof liquids containing solid particles. The pumps arecapable of pumping liquids with particles up to 20 mmin size and a weight percentage of up to 1.5 wt%.When pumping abrasive particles, a reduced life ofpump parts can be expected.

6

English (GB)

2.2 Identification2.2.1 Nameplate

4

6H m

n min -1

%

MEI

ηp

(in.)

HzType/Model f DK-8850 Bjerringbro, Denmark

9987

276

1

Ver.Q

p/tImp. Dia.

0.70 60NBG 125-100-315/334AAEF2BESBQQEUX4

B96704505P220430001

16/12013.15

Made in Hungary

51.4782.4

1780

m3/hbar/°CMAX

245.8

1

11

532

9

7 8

12 10

PEl :0.95CL

TM05

6006

Example of NB, NBG nameplate

4

6H m

n min -1

%

MEI

ηp

(in.)

HzType/Model f DK-8850 Bjerringbro, Denmark

9987

276

1

Ver.Q

p/tImp. Dia.

-.-- 50MTB 65-200/199AFABQQV

A96580752P218120001

16/90

Made in Hungary

42.1

7.832930

m3/hbar/°CMAX

60.0

1

11

532

9

7 8

12 10

PEL :NACL

--.-

TM03

2218

Example of MTB nameplate

Legend

Pos. Description

1 Type designation

2 Identification code (take NB, NBG nameplateas example)

B Service model

96704505 Product number

P2 Production site code

2015 Production year and week(YYWW)

0001 Serial number

3 Nominal flow rate

4 Nominal pump head

5 Pressure rating and maximum temperature

6 Hydraulic efficiency at best efficiency point

7 Minimum efficiency index

8 Frequency

Pos. Description

9 Actual impeller diameter

10

Drinking water approvalor Pump Energy Index (PEI)PEICL: constant loadPEIVL: variable load

11 Country of origin

12 Rated pump speed

7

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(GB)

2.2.2 Type key, NB, NBG

Example 1: NBE 100-160/160-142BSASF1AESBAQERW1Example 2: NBGE 200-150-315.2/317ACAEF3KFSDAQFYW1Example 3: NBG 100-65-200/219SAAEF2KESBQQEKX4Example 4: NB 80-200/222VAXEF1BESBQQEWX2

Pos. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Example 1 NBE 100 -160 /160-142 B S AS F 1 A E S BAQE R W 1

Example 2 NBGE 200 -150 -315.2 /317 A C AE F 3 K F S DAQF Y W 1

Example 3 NBG 100 -65 -200 /219 S A AE F 2 K E S BQQE K X 4

Example 4 NB 80 -200 /222 V A XE F 1 B E S BQQE W X 2

Pos. Explanation

1 Type range

2 Nominal diameter of inlet port (DN)

3 Nominal diameter of outlet port (DN)

4 Nominal impeller diameter [mm]

5 Actual impeller diameter [mm]

6

Impeller type'blank': Closed impeller, cylindrical trim. If one dimension is shown, the impeller has a cylindrical trim,for example 317'blank': Closed impeller, conical trim. If two dimensions are shown, the impeller has a conical trim, forexample 160-142S: Semi-open impellerV: Super vortex impeller

7

Hydraulic versionA: 1st versionB: 2nd versionC: 3rd versionD: 4th version

8

Sensor version'blank': Pump without sensorC: Without built-in sensor, one cable and one pressure sensor are supplied with the pump.S: Pump with built-in differential-pressure sensor, Series 2000

9

Code for pump version; the codes may be combinedA: Basic versionB: Oversize motorC: Without motorD: Pump housing with feet(+E): With ATEX approval, certificate or test report, the second character of the code for pump versionis an EF: Design with base frame(+S): With support blocks, the second character of the pump version code is an SX: Special version; used in case of further customisation than already listed

8

English (GB)

Pos. Explanation

10

Code for pipe connectionE: Table E flangeF: DIN flangeG: ANSI flangeJ: JIS flange

11

Flange pressure rating (PN - rated pressure)1: 10 bar2: 16 bar3: 25 bar4: 40 bar5: Other pressure rating

12

Code for materials

Code Pump housing Impeller Wear ring Shaft

A EN-GJL-250 EN-GJL-200 Bronze/brass 1.4301/1.4308

B EN-GJL-250 Bronze CuSn10 Bronze/brass 1.4301/1.4308

C EN-GJL-250 EN-GJL-200 Bronze/brass 1.4401

D EN-GJL-250 Bronze CuSn10 Bronze/brass 1.4401

E EN-GJL-250 EN-GJL-200 EN-GJL-250 1.4301/1.4308

F EN-GJL-250 Bronze CuSn10 EN-GJL-250 1.4301/1.4308

G EN-GJL-250 EN-GJL-200 EN-GJL-250 1.4401

H EN-GJL-250 Bronze CuSn10 EN-GJL-250 1.4401

I 1.4408 1.4408 1.4517 1.4462

J 1.4408 1.4408 Carbon-graphite-filledPTFE (Graflon®) 1.4462

K 1.4408 1.4408 1.4517 1.4401

L 1.4517 1.4517 1.4517 1.4462

M 1.4408 1.4517 1.4517 1.4401

N 1.4408 1.4408 Carbon-graphite-filledPTFE (Graflon®) 1.4401

P 1.4408 1.4517 Carbon-graphite-filledPTFE (Graflon®) 1.4401

R 1.4517 1.4517 Carbon-graphite-filledPTFE (Graflon®) 1.4462

S EN-GJL-250 1.4408 Bronze/brass 1.4401

T EN-GJL-250 1.4517 Bronze/brass 1.4462

U 1.4408 1.4517 1.4517 1.4462

W 1.4408 1.4517 Carbon-graphite-filledPTFE (Graflon®) 1.4462

Z 1.4469 1.4469 1.4410 1.4410

X Special version

9

Engl

ish

(GB)

Pos. Explanation

13

Rubber parts in pumpE: EPDMF: FXM (Fluoraz®)K: FFKM (Kalrez®)M: FEPS (PTFE-sheathed silicone O-ring)O: HNBRV: FKM (Viton®)

14Shaft seal arrangementS: Single seal

15Shaft seal in pumpLetter code for mechanical shaft seal and shaft seal rubber parts. See Letter codes for shaft seals.

16 Code for rated motor power [kW]. See Codes for rated motor power.

17 Code for phase and voltage [V] or other information. See Codes for phase and voltage or otherinformation.

18 Code for speed variant [rpm]. See Codes for speed variant.

10

English (GB)

Example 1: NBE100-160/160-142BSASF1AESBAQERW1 shows anNBE 100-160 pump with these characteristics:• 160-142 mm closed impeller, conical trim• hydraulic version B• with built-in differential-pressure sensor• pump with support blocks• DIN flange to EN 1092-2 pipe connection• 10 bar flange pressure rating• cast iron pump housing, EN-GJL-250• cast iron impeller, EN-GJL-200• bronze/brass wear ring• stainless steel shaft, EN 1.4301/1.4308• EPDM O-rings for pump cover• single shaft seal arrangement• BAQE shaft seal• 30 kW motor, not for sale in North America, 2-

pole, 50 Hz.

Example 2: NBGE200-150-315.2/317ACAEF3KFSDAQFYW1 showsan NBGE 200-150-315.2 pump with thesecharacteristics:• 317 mm closed impeller, cylindrical trim• hydraulic version A• without built-in sensor, one cable and one

pressure sensor are supplied with the pump.• pump with ATEX approval• DIN flange to EN 1092-2 pipe connection• 25 bar flange pressure rating• stainless steel pump housing, EN 1.4408• stainless steel impeller, EN 1.4408• stainless steel wear ring, EN 1.4517• stainless steel shaft, EN 1.4401• FXM O-rings for pump cover• single shaft seal arrangement• DAQF shaft seal• motor size outside DOE scope, not for sale in

North America, 2-pole, 50 Hz.

Example 3: NBG100-65-200/219SAAEF2KESBQQEKX4 shows anNBG 100-65-200 pump with these characteristics:• 219 mm semi-open impeller• hydraulic version A• basic version• with ATEX approval, certificate or report• DIN flange to EN 1092-2 pipe connection• 16 bar flange pressure rating• stainless steel pump housing, EN 1.4408• stainless steel impeller, EN 1.4408• stainless steel wear ring, EN 1.4517• stainless steel shaft, EN 1.4401• EPDM O-rings for pump cover• single shaft seal arrangement• BQQE shaft seal• 4 kW (3.7 hp) motor, US DOE regulated motor,

4-pole, 60 Hz.

Example 4: NB80-200/222VAXEF1BESBQQEWX2 shows an NB80-200 pump with these characteristics:• 222 mm super vortex impeller• hydraulic version A• PWIS-free certificate included• DIN flange to EN 1092-2 pipe connection• 10 bar flange pressure rating• cast iron pump housing, EN-GJL-250• bronze CuSn10 impeller• bronze/brass wear ring• stainless steel shaft, EN 1.4301/1.4308• EPDM O-rings for pump cover• single shaft seal arrangement• BQQE shaft seal• 90 kW motor, US DOE regulated motor, 2-pole,

60 Hz..

11

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(GB)

Letter codes for shaft sealsPos. 15 in NB, NBG type key example.

Codeexample

Description Code explanation

B Shaft seal type

A: O-ring seal with fixeddriverB: Rubber bellows sealD: O-ring seal, balancedH: Cartridge seal,balanced

QMaterial ofrotating sealface

A: Carbon, metal-impregnated withantimony which is notapproved for potablewaterB: Carbon, resin-impregnatedQ: Silicon carbide

Q Material ofstationary seal

A: Carbon, metal-impregnated withantimony which is notapproved for potablewaterQ: Silicon carbide

E

Material ofsecondary sealand otherrubber andcomposite parts,except the wearring

E: EPDMV: FKM (Viton®)F: FXM (Fluoraz®)K: FFKM (Kalrez®)X: HNBRU: Dynamic O-rings inFFKM and static O-ringsin PTFE

For a thorough description of shaft seal types andmaterials, see the data booklet "NB, NBG, NK, NKG,NBE, NBGE, NKE, NKGE - Custom-built pumpsaccording to EN 733 and ISO 2858".

Codes for rated motor powerPos. 16 in NB, NBG type key example.

CodeDescription

[hp] [kW]

A 0.16 0.12

B 0.25 0.18

C 0.33 0.25

D 0.5 0.37

E 0.75 0.55

F 1 0.75

G 1.5 1.1

H 2 1.5

I 3 2.2

J 4 3

K 5 (5.51) 3.7 (41)

L 7.5 5.5

M 10 7.5

N 15 11

O 20 15

P 25 18.5

Q 30 22

R 40 30

S 50 37

T 60 45

U 75 55

V 100 75

W 125 90

X Bare shaftpump

Y > 2002 > 1502

1 150 110

2 175 132

3 200 150

4 2153 1603

5 2503 1853

1 Value in bracket is for the standard IEC motor size.Value outside bracket is for the motor size accordingto NEMA standards.

12

English (GB)

2 Used for pumps where the pump shaft input powerexceeds 200 hp (150 kW) and is not regulated underthe DOE pump rule.3 Special cases with power sizes above 200 hp (150kW) which are still regulated under the DOE pumprule. For example: Pump has a P2 value of 198 hp(147.6 kW) in its duty point (in DOE scope) butcustomer wants the 215 hp (160 kW) motor instead ofthe 200 hp (150 kW). The pump is in scope of theDOE regulation and requires a PEI value and a motorcode.

Codes for phase and voltage or other informationPos. 17 in NB, NBG type key example.

Code Description

A E-motor (ECM1), 1 x 200-240 V

B E-motor (ECM1), 3 x 200-240 V

C E-motor (ECM1), 3 x 440-480 V

D E-motor (ECM1), 3 x 380-500 V

V Intended for use with external VFDonly, asynchronous motor

W Not for sale in North America

X No motor or US DOE regulated motor(CC marked motor)

Y Out of DOE scope

Z E-motor, asynchronous motor

1ECM: Electronically Commutated Motor.

Codes for speed variantPos. 18 in NB, NBG type key example.

Code Description

A 1450-2200 RPM, E-motor (ECM1)

B 2900-4000 RPM, E-motor (ECM1)

C 4000-5900 RPM, E-motor (ECM1)

1 2-pole, 50 Hz (Asynchronous motor)

2 2-pole, 60 Hz (Asynchronous motor)

3 4-pole, 50 Hz (Asynchronous motor)

4 4-pole, 60 Hz (Asynchronous motor)

5 6-pole, 50 Hz (Asynchronous motor)

6 6-pole, 60 Hz (Asynchronous motor)

7 8-pole, 50 Hz (Asynchronous motor)

8 8-pole, 60 Hz (Asynchronous motor)

1ECM: Electronically Commutated Motor.

13

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(GB)

2.2.3 Type key, MTB

Example of type key: MTB 65-200/199A-F-ABQQE

Pos. 1 2 3 4 5 6 7 8

Code MTB 65 -200 /199 A F A BQQV

Pos. Description

1 Pump type

2 Nominal diameter of outlet port (DN)

3 Pump housing size [mm]

4 Actual impeller diameter [mm]

5Code for pump versionA: Basic version

6Code pipe connectionF: DIN flange

7Code for materialsA: Cast iron

8

Code for shaft seal and rubber pump partsB: Rubber bellows sealQ: Silicon carbide (SiC)E: EPDMV: FKM

The example describes an MTB 65-200 pump with anactual impeller diameter of 199 mm, of the basicversion, with DIN flanges, made of cast iron and witha BQQV shaft seal.The pump is fitted with FKM O-rings as standard.

3. Receiving the product

3.1 Performance testThe pumps are tested 100 % before leaving thefactory. The test includes a function test where thepump performance is measured to ensure that thepump meets the requirements of relevant standards.Test certificates are available from Grundfos

3.2 Transporting the product

WARNINGOverhead loadDeath or serious personal injury‐ Pay attention to the pump weight, and

take precautions to prevent personalinjury if the pump topples or falls byaccident.

• Always transport the pump in the specifiedposition.

• Securely fasten the pump to prevent damage tothe shaft and shaft seal caused by excessivevibrations and knocks.

• Do not lift the pump by the shaft.

3.3 Inspecting the product• Confirm that the product received is in accordance

with the order.• Confirm that the voltage, phase and frequency of

the product match the voltage, phase andfrequency of the installation site. SeeIdentification.

• Check the product for defects or damagesimmediately upon receipt. Any accessory orderedwill be packed in a separate container andshipped with the product.

• If any equipment is damaged in transit, report itimmediately to the carrier's agent. Make completenotations on the freight bill.

3.4 Storage after deliveryThe contractor must inspect the equipment ondelivery and make sure it is stored so as to avoidcorrosion or damage. See Storing the product.

14

English (GB)

4. Installing the product

4.1 Mounting of motor on bare shaft pumps4.1.1 Mounting of motor on pump housing without

feetThe pumps are supplied with a transport bracketprotecting the shaft seal during transport. When youmount the motor, follow the instructions and drawingsas below.1. Remove the coupling guard and loosen the set

screws in the shaft.

TM05

3327

2. Place the pump on the motor.

TM03

3906

3. Fit and tighten the motor screws to the correcttorque. See below.• M8: 20 ± 4 Nm• M10: 40 ± 8 Nm• M12: 70 ± 15 Nm• M16: 145 ± 30 Nm• M20: 150 ± 30 Nm• M24: 200 ± 40 Nm

TM03

3907

4. Remove the nut, washer and transport bracket.

TM03

3908

5. Press down the threaded pipe to ensure that theshaft is in bottom position.

TM03

3909

15

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6. Remove the threaded pipe.

TM03

3910

7. Apply Loctite 243 to the threads of the set screws.Tighten the set screws to the correct torque.• M5: 6 ± 2 Nm• M6: 8 ± 2 Nm• M8: 15 ± 3 Nm

TM03

3911

8. Fit the coupling guard. Tighten the screws to thecorrect torque.• M5 x 10 mm: 6 ± 2 Nm

TM03

3912

4.1.2 Mounting of motor on pump housing withfeet

The pumps are supplied with a transport bracketprotecting the shaft seal during transport. When youmount the motor, follow the instructions and drawingsas below.1. Remove the coupling guard and loosen the set

screws in the shaft.

TM03

3913

16

English (GB)

2. Place the pump at the end of the motor and pushthe parts together.

TM03

3905

3. Fit and tighten the motor screws to the correcttorque. See below.• M8: 20 ± 4 Nm• M10: 40 ± 8 Nm• M12: 70 ± 15 Nm• M16: 145 ± 30 Nm• M20: 150 ± 30 Nm• M24: 200 ± 40 Nm

TM03

3914

4. Remove the nut, washer and transport bracket.

TM03

3915

5. Press down the threaded pipe to ensure that theshaft is in bottom position.

TM03

3916

6. Remove the threaded pipe.

TM03

3917

17

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7. Apply Loctite 243 to the threads of the set screws.Tighten the set screws to the correct torque. Seebelow.• M5: 6 ± 2 Nm• M6: 8 ± 2 Nm• M8: 15 ± 3 Nm

TM03

3918

8. Fit the coupling guard. Tighten the screws to thecorrect torque. See below.• M5 x 10 mm: 6 ± 2 Nm

TM03

3919

4.2 Location

CAUTIONHot or cold surface Minor or moderate personal injury ‐ When pumping hot or cold liquids,

make sure that no one can accidentallycome into contact with hot or coldsurfaces.

The pump must be sited in a well-ventilated, but frost-free location.

4.2.1 Vertical installation, NB, NBG

For inspection and repair, allow suitableclearances for pump or motor removal.

• Pumps fitted with motors up to and including 4 kWrequire a 0.3 m clearance above the motor.

• Pumps fitted with motors of 5.5 kW and up requireat least a 1 m clearance above the motor to allowthe use of lifting equipment.

A

TM03

4128

Clearance above the motor

Motor Minimum clearance, A

0.25 - 4 kW 0.3 m

5.5 - 37 kW 1 m

18

English (GB)

4.2.2 Horizontal installation, NB, NBG

For inspection and repair, allow suitableclearances for pump or motor removal.

• Pumps fitted with motors up to and including 4 kWrequire a 0.3 m clearance behind the motor.

• Pumps fitted with motors of 5.5 kW and up requirea 0.3 m clearance behind the motor and at least a1 m clearance above the motor to allow the use oflifting equipment.

• NB pumps with base frame must have the sameclearance as pumps with motors from 5.5 to 200kW.

A

TM03

4127

Clearance behind the motor

Motor Minimum clearance, A

0.25 - 4 kW 0.3 m

A

B

TM07

7156

Clearance behind and above the motor

MotorMinimum clearance

A B

5.5 - 200 kW 0.3 m 1 m

4.2.3 Minimum clearance of MTB

For inspection and repair, allow suitableclearances for pump or motor removal.

X

TM03

3547

Motor and pump head removal

PumpP2

[kW]

Minimum clearance, X [mm]

Motor only Motor and pumphead

50 Hz

MTB 50-200 3.0 60 140

MTB 65-1605.5

80 1007.5

MTB 65-20011

100 10015

60 Hz

MTB 50-200

3.060

1404.0

5.5 80

MTB 65-125 7.5 80 100

MTB 65-16011

110 10015

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5. Mechanical installation

The pump must be installed according tonational water regulations and standards.

5.1 Lifting the product

Motors from 4 kW and up are supplied withlifting eyes which must not be used forlifting the entire pump unit.

Weight: See label on the packing.Lift the pumps by means of nylon straps and shacklesor a hook as shown on figures below.

TM03

3973

Correct lifting of pump without base frame

TM04

5179

Correct lifting of pump with base frame

TM05

3309

Correct lifting of pump without motor

TM03

3972

Incorrect lifting of pump

20

English (GB)

5.2 Installation positionsArrows on the pump housing show the direction ofliquid flow through the pump.The pumps can be installed with the motor and pumpshaft in all positions between vertical and horizontal,but the motor must never fall below the horizontalplane.Horizontal motors with feet must always besupported.

A B

TM03

4126

Installation positions

A: 0.25 - 37 kW

B: 0.25 - 200 kW

Fit isolating valves on either side of the pump as thismakes it unnecessary to drain the system if the pumpneeds to be cleaned or repaired.

5.3 Foundation of NB, NBG, MTB pumpwithout base frame

Non-compliance may result in functionalfaults which will damage the pumpcomponents.

Observe the following requirements when preparingthe foundation:• We recommend that you install the pump on a

plane and rigid concrete foundation which isheavy enough to provide permanent support forthe entire pump.

• The foundation must be capable of absorbing anyvibration, normal strain or shock.

• Optimally, the weight of the concrete foundationshould be at least 1.5 times the weight of thepump.

• The concrete foundation must have an absolutelylevel and even surface.

• The foundation length and width must always be200 mm larger than the length and width of thepump. See the figure below.

L f

Bf

L f

hf

TM03

4130

Foundation

• The minimum height of the foundation, indicatedby hf, can then be calculated by the followingformula:

hf =mpump × 1.5

Lf × Bf × δconcrete

hf Height of the foundation [m]

Lf Length of the foundation [m]

Bf Width of the foundation [m]

mpump Mass of the pump [kg]

δconcrete Density of the concrete [kg/m3]

The density, δ, of concrete is usually takenas 2,200 kg/m3.

• In installations where noise-less operation isparticularly important, we recommend afoundation with a mass up to 5 times that of thepump. See also Vibration damping.

After installation is finished, tighten thescrews connecting the flange, feet and theanchor bolts according to the tighteningtorques. You must apply an anti-loosemethod, such as mounting lock washers.

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5.4 Foundation of NB, NBG pump with baseframe

This section applies only to 50 Hz pumpsas base frames are not supplied for 60 Hzpumps.

Non-compliance may result in functionalfaults which will damage the pumpcomponents.

Observe the following requirements when preparingthe foundation:• We recommend that you install the pump on a

plane and rigid concrete foundation which isheavy enough to provide permanent support forthe entire pump.

• The foundation must be capable of absorbing anyvibration, normal strain or shock.

• Optimally, the weight of the concrete foundationshould at least be 1.5 times the weight of thepump.

• The foundation must be 100 mm larger than thebase frame on all four sides. See the figure below.

L f

h f

L f

Bf

X

X

X

X

TM05

1558

Foundation, X equal to minimum 100 mm

• The minimum height of the foundation, hf, canthen be calculated with the following formula:

hf =mpump × 1.5

Lf × Bf × δconcrete

hf Height of the foundation [m]

Lf Length of the foundation [m]

Bf Width of the foundation [m]

mpump Mass of the pump [kg]

δconcrete Density of the concrete [kg/m3]

The density, δ, of concrete is usually takenas 2,200 kg/m3.

• Place the pump on the foundation, and fasten it.The base frame must be supported under itsentire area. See the figures below.

TM05

1559

Correct foundation

TM05

1560

Incorrect foundation

22

English (GB)

TM05

1561

Base frame with pouring holes

• It is important to prepare a good foundation beforeinstalling the pump.

• NB, NBG pumps with base frame are alwaysprepared for grouting.

• Grouting anchors are welded to the base frame.• For NB, NBG pumps with 2-pole motors equal to

or bigger than 55 kW, grouting of the base frameis mandatory in order to prevent vibration energyfrom the rotating motor and liquid flow to evolve.

Poles P2 lower than orequal to 45 kW

P2 equal to or higherthan 55 kW

2-pole Grouting optional Grouting mandatory

4-pole Grouting optional

6-pole Grouting optional

5.4.1 Procedure of installing the product on thefoundation

Preparing the foundation

Contact your concrete supplier for advice ifany doubts.

Follow the steps below to ensure a good foundation:1. Use an approved, non-shrinking concrete.

2. Pour the foundation without interruptions to within19-32 mm of the final level.

3. Use vibrators to ensure that the concrete is evenlydistributed.

4. The top surface must be well scored and groovedbefore the concrete sets. This provides a bondingsurface for the grout.

5. Embed anchor bolts in the concrete.

6. Allow enough bolt length to reach through grout,shims, lower part of base frame, nuts andwashers. See the figure below.

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8

7654

1

2

3

9

TM07

5514

Pos. Description

1 Bolt length above the support rail

2 Thickness of the support rail

3 19-32 mm (0.75 - 1.25 in) allowancefor grout

4 Washer

5 Lug

6 Pipe sleeve

7 Foundation with rough top

8 Wedges and shims left in place

9 Support rail

10 5-10 mm (0.2 - 0.4 in.)

7. Let the foundation cure for several days beforelevelling and grouting the base frame.

23

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Levelling the base frameFollow the steps below to level the base frame:1. Lift or jack up the base frame to the final level

19-32 mm above the concrete foundation, andsupport the base frame by means of blocks andshims both at the anchor bolts and midwaybetween bolts.

A

TM04

5183

A: 19-32 mm

2. Level the base frame by adding or removingshims under the base frame.

TM04

0489

3. Tighten the anchor bolt nuts against the baseframe.

4. Make sure the piping can be aligned to the pumpflanges without putting strain on pipes or flanges.

Grouting

If you have questions or doubts about thegrouting, please contact an expert ongrouting.

Grouting compensates for an uneven foundation,distributes the weight of the unit, dampens vibrationsand prevents shifting. Follow the steps below to dothe grouting:1. Use an approved, non-shrinking grout.

2. Embed reinforcing steel bars into the foundationby means of 2K anchor adhesive glue.

3. The number of steel bars depends on the size ofthe base frame, but we recommend that youdistribute a minimum of 20 bars evenly over thewhole area of the base frame.

TM04

0491

Example of foundation with minimum 20 bars

4. The free end of the steel bar must be 2/3 theheight of the base frame to ensure a propergrouting.

2/3

x h

h

TM04

0490

5. Soak top of concrete foundation thoroughly, thenremove surface water.

24

English (GB)

6. Ensure proper shuttering at both ends of the baseframe.

A

TM05

1562

A: shuttering

7. If necessary, check the levelling of the base frameagain before grouting.

8. Pour non-shrinking grout through the openings ofthe base frame until the space underneath thebase frame has been filled completely.

9. Fill the formwork with grout up to the base frametop level.

10. Allow the grout to dry thoroughly before attachingpiping to the pump. 24 hours is sufficient time withapproved grouting procedure.

11. When the grout has thoroughly hardened, checkthe anchor bolt nuts, and tighten, if necessary.

12. Approximately two weeks after pouring the grout,or when the grout has thoroughly dried, apply anoil-based paint to the exposed edges of the groutto prevent the grout from getting into contact withair and moisture.

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A

5

4

6

1

TM03

2946

Pos. Description

1 Base frame

2 19-32 mm (0.75 - 1.25 in) grout

3 Formwork

4 Foundation with rough top

5 Levelling wedges and shims left inplace

6 Grout

A 5-10 mm (0.2 - 0.4 in.)

After installation is finished, tighten thescrews connecting the flange, feet and theanchor bolts according to the tighteningtorques. You must apply an anti-loosemethod, such as mounting lock washers.

25

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5.5 Pipes5.5.1 Pipe installaitonWhen installing the pipes, the pump housing must notbe stressed by the pipes.The inlet and outlet pipes must be of an adequatesize, taking the pump inlet pressure into account.The pipes must be installed in a way that air pocketsare avoided, especially on the inlet side of the pump.

TM00

2263

Pipelines

The isolating valves must be fitted on either side ofthe pump to avoid having to drain the system if thepump needs to be cleaned or repaired. The pipesmust be adequately supported as close to the pumpas possible, both on the inlet and the outlet side. Thecounterflanges must lie true against the pump flangeswithout being stressed as stress would causedamage to the pump.

••

••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• • ••• •••• •••• •••• •••• •••• ••••• •••• ••••

TM05

3310

Pump installation

5.5.2 Direct mounting in pipes

To ensure quiet operation, suspend thepipes from suitable pipe hangers.

Pumps fitted with motors up to and including framesize 132 are suitable for direct mounting in supportedpipes.

TM05

3337

Direct mounting in pipes

This type of installation does not allow the use ofexpansion joints.

5.5.3 Bypass

DANGERExplosion hazardDeath or serious personal injury‐ The pump is not allowed to run against

a closed valve except during startup.Operating against a closed valve at anextended period of time will cause anincrease in temperature and theformation of steam and may result indamages to or explosion of the pumphousing. The valve must be kept openduring operation.

If there is any danger of the pump running against aclosed valve, ensure a minimum liquid flow throughthe pump by connecting a bypass or drain to theoutlet pipe. The minimum flow rate must be at least10 % of the maximum flow rate. The flow rate andhead are stated on the pump nameplate.

26

English (GB)

5.6 Vibration damping5.6.1 Elimination of noise and vibrationsIn order to achieve optimum operation and minimumnoise and vibration, consider vibration damping of thepump. Generally, always consider this for pumps withmotors of 11 kW and up. Vibration damping ismandatory for motors of 90 kW and up. Smaller motorsizes, however, may also cause undesirable noiseand vibration.Noise and vibration are generated by the revolutionsof the motor and pump and by the flow in pipes andfittings. The effect on the environment is subjectiveand depends on correct installation and the state ofthe rest of the system.Elimination of noise and vibrations is best achievedby means of a concrete foundation, vibration dampersand expansion joints. See the figure below.

••

••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• •••• •••• •••• •••• •••• ••••• •••• •••• •••• •••• • ••• •••• •••• •••• •••• •••• ••••• •••• ••••

TM05

3310

5.6.2 Vibration dampersTo prevent the transmission of vibrations to buildings,we recommend that you isolate the pump foundationfrom building parts by means of vibration dampers.This decision must be made by the customer ordesigner or consultant of the installation.The selection of the right vibration damper requiresthe following data:• forces transmitted through the damper• motor speed, taking speed control, if any, into

consideration• required damping in % - suggested value is 70 %.The selection of vibration damper will differ frominstallation to installation. In certain cases, a wrongdamper may increase the vibration level. Vibrationdampers must therefore be sized by the supplier ofthe vibration dampers.If you install the pump on a foundation with vibrationdampers, always fit expansion joints on the pumpflanges. This is important to prevent the pump from"hanging" in the flanges.

5.7 Expansion jointsExpansion joints provide these advantages:• absorption of thermal expansion and contraction

of pipes caused by variations in liquid temperature• reduction of mechanical influences in connection

with pressure surges in the pipes• isolation of structure-borne noise in the pipes,

applying only to rubber bellows expansion joints.

Do not install expansion joints to make upfor inaccuracies in the pipes, such ascentre displacement or misalignment offlanges.

The expansion joints must be fitted at a minimumdistance of 1 to 1.5 times of the pipe diameters awayfrom the pump on the inlet and the outlet side. Thiswill prevent turbulence in the expansion joints, thusensuring optimum inlet conditions and minimumpressure loss on the outlet side. At flow velocitiesgreater than 5 m/s, we recommend that you fit largerexpansion joints matching the pipes.The figures below show examples of rubber bellowsexpansion joints with or without limiting rods.

27

Engl

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TM02

4979

Rubber bellows expansion joint with limiting rodsTM

0249

81

Rubber bellows expansion joint without limiting rods

We always recommend that you use expansion jointswith limiting rods for flanges larger than DN 100 inorder to reduce the effects of the expansion orcontraction forces on the pipes.Follow the supplier’s instructions and pass them on toadvisers or pipe installers. You must anchor the pipes in such a way that they donot stress the expansion joints and the pump.The figure below shows an example of a metalbellows expansion joint with limiting rods.

TM02

4980

Metal bellows expansion joint with limiting rods

Due to the risk of rupture of the rubber bellows, werecommend that you use metal bellows expansionjoints at temperatures above 100 °C combined withhigh pressure.

5.8 Measuring instruments5.8.1 Pressure gauge and mano-vacuum gaugeTo ensure continuous monitoring of the operation, werecommend that you install a pressure gauge on theoutlet side and a mano-vacuum gauge on the inletside. The pressure gauge tappings must only beopened for test purposes. The measuring range ofthe gauges must be 20 % above the maximum pumppressure.When measuring with pressure gauge on the pumpflanges, note that a pressure gauge does not registerdynamic pressure. On all pumps, the diameters of the inlet and outletflanges are different which results in different flowvelocities at the two flanges. Consequently, thepressure gauge on the outlet flange will not show thepressure stated in the technical documentation, but avalue which may be up to 1.5 bar or approximately 15m of head lower.

5.8.2 AmmeterWe recommend connecting an ammeter to check themotor load.

5.9 Condensation coverWhen installing the pumps outdoors, provide themotor with a suitable cover to avoid condensation.When mounting the condensation cover on top of themotor, make sure to leave enough space for the air tocool the motor.

TM07

7675

Motors with condensation cover

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6. Electrical connectionThe electrical connection must be carried out by aqualified electrician in accordance with localregulations.

DANGERElectric shockDeath or serious personal injury‐ Before removing the terminal box

cover and before removing ordismantling the pump, make sure thatthe power supply has been switchedoff and that it cannot be accidentallyswitched on again.

‐ The pump must be connected to anexternal main switch close to the pumpand to a motor-protective circuitbreaker. Make sure that you can lockthe main switch in OFF position(isolated). Type and requirements asspecified in EN 60204-1, 5.3.2.

The operating voltage and frequency are stated onthe nameplate. Make sure that the motor is suitablefor the power supply of the installation site.The electrical connection must be carried out asshown in the wiring diagram inside the terminal boxcover.

DANGERExplosive environmentDeath or serious personal injury‐ Whenever powered equipment is used

in explosive surroundings, the rulesand regulations generally orspecifically imposed by the relevantresponsible authorities or tradeorganisations must be observed.

6.1 Motor protection

DANGERElectric shockDeath or serious personal injury‐ The motor must be protected against

overload by an external motor-protective circuit breaker with IEC tripclass 10 or 20.

‐ Grundfos recommends using trip class20.

‐ The current setting of the motor-protective circuit breaker must beadjusted to the nominal current statedon the motor nameplate.

DANGERAutomatic startupDeath or serious personal injury‐ Before starting any repair work on

motors incorporating a thermal switchor thermistors, make sure that themotor cannot restart automatically aftercooling.

Three-phase motors must be connected to a motor-protective circuit breaker.All three-phase Grundfos MG and MMG motors of 3kW and up incorporate a thermistor. See theinstructions in the motor terminal box.The electrical connection must be carried out asshown in the wiring diagram on the back side of theterminal box cover.

6.2 Cable entry and screwed connection,MG motor

All motors are supplied without screwed cable entries.The table below shows the numbers and sizes ofcable entry holes of the terminal box of Grundfos MGmotors according to the standard EN 50262.

Framesize Model Number x

dimensions Description

MG 71and 80 B, C 2 x M20 x 1.5

The holes haveprecast threadsand are closedwith knock-outcable entries.

MG 90and 100 B, C, D 4 x M20

The holes areclosed withknock-out cableentries.

MG 112and 132

C, D, F,H 4 x M25

MG 160and 180 F, H

4 x M402 x M20

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6.3 Synchronous motorsPumps fitted with synchronous motors must beconnected to a Grundfos CUE frequency converter.

1 4

TM04

4289

Example of installation without filter

Symbol Designation

1 CUE

4 Standard motor

One line Unscreened cable

Double line Screened cable

Synchronous motors must not beconnected directly to mains supply.

The CUE must be of T/C CUE203 followed byadditional numbers and characters. See the CUEInstallation and operating instruction to setupfrequency driver together with synchronous motor.If another frequency driver brand other than CUE isrequired or specified, contact Grundfos.

T/C: CUE203 P1M2T5E20H1BXCXXXSXXXXAXBXCXXXXDXProd. no: 12345678 S/N: 123456G234

IN: 3x380-500 V 50/60Hz 3.7AOUT: 3x0-Vin 0-100Hz 4.1 A 2.8 kVACHASSIS/IP20 Tamb. 45C/122F

IIIIIIIIIIIBAR CODEIIIIIIIIIII MADE IN DENMARK

Listed 76X1 E134261 Ind. Contr. Eq.See manual for prefuse

CAUTION:SEE MANUAL / VOIR MANUEL

WARNING:STORED CHARGE DO NOT TOUCH UNTIL4 MIN AFTER DISCONNECTION

CHARGE RESIDUELLE, ATTENDRE4 MIN APRES DECONNEXION

1.5 kW (400V)

TM07

7181

Example of CUE nameplate

Text description

T/CCUE (product name)203... (internal code)

6.4 Frequency converter operationAll three-phase motors can be connected to afrequency converter.Frequency converter operation will often expose themotor insulation system to a heavier load and causethe motor to be more noisy than usual due to eddycurrents caused by voltage peaks.A large motor driven via a frequency converter will beloaded by bearing currents.Check these operating conditions if the pump isdriven via a frequency converter:

Operatingconditions Action

2-pole motors from45 kW, 4-polemotors from37 kW and 6-polemotors from 30 kW

Check that one of the motorbearings is electricallyisolated.Contact Grundfos.

Noise criticalapplications

Fit an output filter between themotor and the frequencyconverter. This reduces thevoltage peaks and thus thenoise.

Particularly noisecritical applications Fit a sinusoidal filter.

Cable length

Fit a cable that meets thespecifications laid down by thefrequency converter supplier.The length of the cablebetween motor and frequencyconverter affects the motorload.

Supply voltage upto 500 V

Check that the motor issuitable for frequencyconverter operation.

Supply voltagebetween 500 V and690 V

Fit a sinusoidal filter betweenthe motor and the frequencyconverter which reduces thevoltage peaks and thus thenoise, or check that the motorhas reinforced insulation.

Supply voltage of690 V and higher

Fit a sinusoidal filter and checkthat the motor has reinforcedinsulation.

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7. Startup

Do not start the pump until it has beenfilled with liquid and vented.

7.1 Flushing the pipe system

CAUTIONBiological hazardMinor or moderate personal injury‐ When pumping drinking water, the

pump must be flushed thoroughly withclean water before startup in order toremove any foreign matters, such aspreservatives, test liquid, or grease.

• Before starting up the pump, thoroughly clean,flush and fill the pipe system with clean water.

The warranty does not cover anydamage caused by flushing the pipesystem by means of the pump.

The pump is not designed to pumpliquids containing solid particles suchas pipe debris and welding slag.

7.2 Priming the product7.2.1 Priming the product in closed systems or

open systems where the liquid level is abovethe pump inlet

1. Close the isolating valve in the outlet pipe andslowly open the isolating valve in the inlet pipe.Both the pump and the inlet pipe must becompletely filled with liquid.

WARNINGEscaping liquidDeath or serious personal injury‐ Pay attention to the orientation of

the priming hole to ensure that theescaping liquid does not causepersonal injury or damage to themotor or other components.

‐ In hot-liquid installations, payspecial attention to the risk ofpersonal injury caused by scaldinghot liquid.

‐ In cold-liquid installations, payspecial attention to the risk ofpersonal injury caused by coldliquid.

2. Loosen the priming plug in order to vent thepump. Once liquid runs out, tighten the primingplug.

7.2.2 Priming the product in inlet operation withnon-return valve

The inlet pipe and the pump must be filled with liquidand vented before the pump is started.1. Close the isolating valve in the outlet pipe and

slowly open the isolating valve in the inlet pipe.

2. Remove the priming plug indicated by M.

3. Pour liquid through the hole until the inlet pipe andthe pump are completely filled with liquid.

4. Fit the priming plug indicated by M.

5. The inlet pipe may be filled and vented via thepriming plug. Alternatively, a priming device withfunnel can be installed before the pump.

M

E

TM03

3935

Drain plug (E), priming and venting plug (M)

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7.2.3 Priming the product in open systems wherethe liquid level is below the pump inlet

1. If an isolating valve is fitted on the inlet side of thepump, the valve must be fully open.

2. Close the isolating valve in the outlet pipe, andtighten the priming and drain plugs.

M

ETM

0339

35

Drain plug (E), priming and venting plug (M)

3. Connect a manual venting pump with the funnelinstead of a priming device.

4. Install a slide valve between the venting pumpand the centrifugal pump in order to protect theventing pump against excessive pressure.

5. Once the slide valve at the manual venting pumphas been opened, vent the inlet pipe using short,rapid pump strokes until the liquid runs out on theoutlet side.

6. Close the valve at the venting pump.

7.3 Checking the direction of rotation

Do not start the pump to check thedirection of rotation until it has been filledwith liquid.

The correct direction of rotation is shown by arrowson the pump housing, and can visibly be checked bymeans of the motor fan. Looking at the motor fan, thedirection of rotation must be clockwise.

7.4 Starting up the pump1. Fully open the isolating valve on the inlet side of

the pump and leave the isolating valve on theoutlet side almost closed.

2. Start the pump.

3. Vent the pump during startup by loosening the airvent screw in the pump head or pump head coveruntil a steady stream of liquid runs out of the venthole.A

A

TM07

7182

Position of vent screw (A)

WARNINGEscaping liquidDeath or serious personal injury‐ Pay attention to the orientation of

the vent hole to ensure that theescaping liquid does not causepersonal injury or damage to themotor or other components.

‐ In hot-liquid installations, payspecial attention to the risk ofpersonal injury caused by scaldinghot liquid.

‐ In cold-liquid installations, payspecial attention to the risk ofpersonal injury caused by coldliquid.

4. When the pipes have been filled with liquid, slowlyopen the isolating valve on the outlet side until it isfully open.

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5. Check the overload by measuring the motorcurrent consumption and comparing the value tothe rated current stated on the motor nameplate.In case of overload, throttle the valve on the outletside until the motor is no longer overloaded.

If the pump is fitted with a motor withan output selected on the basis of aspecific maximum flow rate, the motormay be overloaded if the differentialpressure is lower than anticipated.

6. Always measure the motor current consumptionduring startup.

At the moment of startup, the inputcurrent of the pump motor is up to sixtimes higher than the full-load currentstated on the motor nameplate.

7.5 Shaft seal run-in periodThe seal faces are lubricated by the pumped liquid,meaning that there may be a certain amount ofleakage from the shaft seal. When the pump isstarted for the first time, or when a new shaft seal isinstalled, a certain run-in period is required before theleakage is reduced to an acceptable level. The timerequired depends on the operating conditions, that is,every time the operating conditions change, a newrun-in period is started.Under normal conditions, the leaking liquidevaporates, and as a result, no leakage will bedetected.Liquids such as kerosene do not evaporate, anddrops are visible, but it is not a shaft seal failure.

7.5.1 Mechanical shaft sealsMechanical shaft seals are precision components. Ifthe mechanical shaft seal of a recently installed pumpfails, it normally happens within the first few hours ofoperation. The main cause of such failures isimproper installation of the shaft seals and/ormishandling of the pump during installation.

7.6 Number of motors starting or stopping

Frame size

Maximum number of motor startsper hour

Number of poles

2 4 6

56-71 100 250 350

80-100 60 140 160

112-132 30 60 80

160-180 15 30 50

200-225 8 15 30

250-315 4 8 12

7.7 Reference readings of monitoringequipment

We recommend that you take initial readings of theseparameters:• vibration level - use SPM (shock pulse method)

measuring points (only for NK and NKG)• inlet and outlet pressure - use pressure gauges.The readings can be used as reference in case ofabnormal operation.

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8. Storing the product1. The contractor must inspect the equipment on

delivery and make sure that it is stored in such away that corrosion and damage are avoided.

2. If you do not operate the pump soon after arrival,store it in a clean, dry place under slow, moderatechanges in ambient temperature.

3. Protect the pump from moisture, dust, dirt andforeign bodies. Before and during storage werecommend the following precautions:a. Make sure that the bearings are filled with the

recommended grease to prevent moisture fromentering around the shaft.

b. Make sure that the inlet and outlet ports and allother openings are covered with cardboard,wood or masking tape to prevent foreignobjects from entering the pump.

c. If the unit is to be stored where there is noprotective covering, cover it with a tarpaulin orwaterproof material, or other suitable covering.

d. Rotate the shaft two turns every two weeks toprevent corrosion of the bearing surfaces andthe stuffing box or shaft seal faces caused bymoisture.

4. If the pump is to be stored for more than sixmonths before being put into operation, apply asuitable corrosion inhibitor to the internal pumpparts.Make sure that the corrosion inhibitor used doesnot affect the rubber parts with which it comes intocontact.Commercially available preservatives can be usedfor this purpose. Please observe themanufacturer’s instructions for application orremoval.

5. Keep all openings covered until the pipes areready to be fitted to prevent water and dust fromentering the pump.The cost of having to dismantle the pump duringstartup to remove foreign objects can be veryhigh.

9. Servicing the product

9.1 Contaminated products

CAUTIONBiological hazard Minor or moderate personal injury ‐ Flush the pump thoroughly with clean

water and rinse the pump parts inwater after dismantling.

The product will be classified as contaminated if it hasbeen used for a liquid which is toxic or injurious tohealth.If you request Grundfos to service the product,contact Grundfos with details about the liquid beforereturning the product for service. Otherwise, Grundfoscan refuse to accept the product for service.The product must be cleaned thoroughly before youreturn it.Costs of returning the product are to be paid by thecustomer.

9.2 Service kitsService kits for the products, see Grundfos ProductCenter in www.grundfos.com or Service KitCatalogue.

10. Maintaining the product

DANGERElectric shock and unintended pumpstartDeath or serious personal injury‐ Before starting work on the product,

switch off the power supply. Make surethat the power supply cannot beaccidentally switched on.

10.1 Maintenance of the pumpThe pump is maintenance-free.

10.2 Maintaining the mechanical shaft sealsMechanical shaft seals are maintenance-free,working almost without any leakages.• If any considerable or increasing seepage occurs,

check the mechanical shaft seal immediately.• If the sliding surfaces are damaged, replace the

entire shaft seal. Treat mechanical shaft sealswith utmost care.

End suction pumps equipped with mechanical shaftseals are matched to the operating conditions forwhich the pump was sold. Observe the followingprecautions to avoid shaft seal damage and achievemaximum shaft seal life.

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English (GB)

Do not run the pump dry or against aclosed valve. Dry running will cause shaftseal failure.

Do not exceed the temperature orpressure limitations for the mechanicalshaft seal in use.

10.3 Maintaining the motor

It is important to keep the motor clean in order toensure adequate ventilation.• Check the motor at regular intervals.• If the pump is installed in a dusty environment,

check and clean it regularly.

10.4 Lubrication of motor bearings10.4.1 MG motorsThe bearings of motors up to 11 kW are greased forlife and require no lubrication.The bearings of motors of 11 kW and up must begreased in accordance with the indications on themotor nameplate.

10.4.2 Siemens motorsMotors up to and including frame size 250 havemaintenance-free, greased-for-life bearings.Motors of frame sizes larger than 250 must begreased according to the indications on the motornameplate. Grease spills from the motor may occur.

10.4.3 Other motorsFor other motor makes with grease nipples, lubricatethe motor according to the indications on the motornameplate. Grease specifications: See sectionBearing grease.

10.4.4 Bearing greaseThe lithium-based grease used should meets thefollowing specifications:• NLGI class 2 or 3• viscosity of basic oil: 70 to 150 cSt at +40 °C• temperature range: -30 °C to +140 °C during

continuous operation.

10.5 Applying sealant to plugsRemember to clean the threads and apply sealant tothe plug when assembling it.

11. Taking the product out of operation

11.1 Protecting the pump during periods ofinactivity and frost

Pumps that are not being used during periods of frostmust be drained to avoid damage.

WARNINGEscaping liquidDeath or serious personal injury‐ Ensure that the escaping liquid does

not cause personal injury or damage tothe motor or other components.

‐ In hot-liquid installations, pay specialattention to the risk of personal injurycaused by scalding hot liquid.

‐ In cold-liquid installations, pay specialattention to the risk of personal injurycaused by cold liquid.

1. Drain the pump by removing the drain plug.

M

E

TM03

3935

Drain plug (E), priming and venting plug (M)

2. Do not tighten the priming plug or replace thedrain plug until the pump is to be used again.

3. If the pump is to be drained before a long periodof inactivity, inject a few drops of silicone oil on theshaft at the bearing bracket. This will prevent theshaft seal faces from seizing up.

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12. Fault finding the product

DANGERElectric shockDeath or serious personal injury‐ Before removing the terminal box

cover and before removing ordismantling the pump, make sure thatthe power supply has been switchedoff and that it cannot be accidentallyswitched on again.

WARNINGEscaping liquidDeath or serious personal injury‐ Pay attention to the orientation of the

vent hole to ensure that the escapingliquid does not cause personal injury ordamage to the motor or othercomponents. In hot-liquid installations,pay special attention to the risk ofpersonal injury caused by scalding hotliquid. In cold-liquid installations, payspecial attention to the risk of personalinjury caused by cold liquid.

CAUTIONHot or cold surfaceMinor or moderate personal injury‐ When pumping hot or cold liquids,

make sure that persons cannotaccidentally come into contact with hotor cold surfaces.

Fault Cause Remedy

1. The pump delivers no or too littleliquid.

a) The electrical connection iswrong, for instance two phases.

Check the electrical connection andremedy, if necessary.

b) The direction of rotation iswrong.

Interchange two phases of thepower supply.

c) There is air in inlet pipe. Vent the inlet pipe or the pump.

d) The counterpressure is too high.Set the duty point in accordancewith the data sheet. Check thesystem for impurities.

e) The inlet pressure is too low.

Increase the liquid level on the inletside. Open the isolating valve in theinlet pipe. Make sure that all theconditions in section Pipes arecomplied with.

f) The inlet pipe or impeller isblocked by impurities. Clean the inlet pipe or pump.

g) The pump draws in air due to adefective seal.

Check the pipeline seals, pumphousing gaskets and shaft seals.Replace gaskets and seals, ifnecessary.

h) The pump draws in air due tolow liquid level.

Increase the liquid level on the inletside and keep it as constant aspossible.

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Fault Cause Remedy

2. The motor-protective circuitbreaker has tripped because themotor is overloaded.

a)The pump is blocked byimpurities. Clean the pump.

b) The pump is running aboverated duty point.

Set the duty point in accordancewith the data sheet.

c) The density or viscosity of theliquid is higher than specified whenordering.

If less flow is sufficient, reduce theflow on the outlet side. Otherwise,fit a more powerful motor.

d) The motor-protective circuitbreaker overload setting isincorrect.

Check the setting of the motor-protective circuit breaker and adjustit, if necessary.

e)The motor runs on two phases. Check the electrical connection.Replace the fuse, if defective.

3. The pump makes too much noise.The pump runs unevenly andvibrates.

a) The inlet pressure is too low, thatis the pump cavitates.

Increase the liquid level on the inletside. Open the isolating valve in theinlet pipe. Make sure that all theconditions in section Pipes arecomplied with.

b) There is air in the inlet pipe orpump. Vent the inlet pipe or the pump.

c) The counterpressure is lowerthan specified.

Set the duty point in accordancewith the data sheet.

d) The pump draws in air due tolow liquid level.

Increase the liquid level on the inletside and keep it as constant aspossible.

e) The impeller is out of balance orthe impeller blades are clogged. Clean and check the impeller.

f) The inner parts are worn. Replace the defective parts.

g) The pump is stressed by thepipes thus causing starting noise.

Mount the pump so that it is notstressed. Support the pipes.

h) The bearings are defective. Replace the bearings.

i) The motor fan is defective. Replace the fan.

j) There are foreign bodies in thepump. Clean the pump.

k) Frequency converter operation. See section Frequency converteroperation.

4. The pump, connections ormechanical shaft seal are leaking.

a) The pump is stressed by thepipes thus causing leaks in thepump housing or at connections.

Mount the pump so that it is notstressed. Support the pipes.

b) Pump housing gaskets andgaskets at connections aredefective.

Replace the pump housing gasketsor gaskets at connections.

c) The mechanical shaft seal isdirty or stuck together.

Check and clean the mechanicalshaft seal.

d) The mechanical shaft seal isdefective. Replace the mechanical shaft seal.

e) The shaft surface is defective. Replace the shaft.

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Fault Cause Remedy

5. The temperature in the pump ormotor is too high.

a)There is air in the inlet pipe orpump.

Vent the inlet pipe or the pump andreplenish.

b) The inlet pressure is too low.

Increase the liquid level on the inletside. Open the isolating valve in theinlet pipe. Make sure that all theconditions in section Pipes arecomplied with.

c) The bearings are lubricated withtoo little, too much or unsuitablelubricant.

Replenish, reduce or replace thelubricant.

d) The axial pressure is too high.Check the relief holes of theimpeller and the lock rings on theinlet side.

e) The motor-protective circuitbreaker is defective or the setting isincorrect.

Check the setting of the motor-protective circuit breaker andreplace, if necessary.

f) The motor is overloaded. Reduce the flow rate.

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13. Technical data

13.1 Operating conditions13.1.1 Ambient temperature and altitude

Do not exceed the allowable maximumambient temperature stated on the motornameplate. If nothing is stated, then themaximum allowed ambient temperature is40 °C.

The ambient temperature and the installation altitudeare important factors for the motor life as they affectthe life of the bearings and the insulation system.If the ambient temperature exceeds therecommended maximum ambient temperature or theinstallation altitude exceeds the recommendedmaximum altitude above sea level, seeing the figurebelow, the motor must not be fully loaded due to thelow density and consequently low cooling effect of theair. In such cases, it may be necessary to use a motorwith a higher output.

20 25 30 35 40 45 50 55 60 65 70 75 80

5060708090

100

[%]P2

1

2

3

t [ °C]

1000 2250 3500 4750 m TM04

4914

The maximum motor output depends on theambient temperature and altitude

Pos. Description

1 0.25 - 0.55 kW MG motors

2

0.75 - 22 kW MG motors, IE2/IE3

0.75 - 450 kW MMG-H motors, IE2

0.25 - 200 kW MMG-H motors, IE3

3

0.75 - 462 kW Siemens motors, IE2

0.25 - 462 kW Siemens motors, IE3

0.75 - 462 kW Siemens motors, IE4

Example: A pump with a 1.1 kW IE2 MG motor: Ifthis pump is installed 4750 m above sea level, themotor must not be loaded more than 88 % of therated output. At an ambient temperature of 75 °C, themotor must not be loaded more than 78 % of therated output. If the pump is installed 4750 m above

sea level at an ambient temperature of 75 °C, themotor must not be loaded more than 88 % x 78 % =68.6 % of the rated output.

13.1.2 Liquid temperatureLiquid temperature: -40 to +140 °CThe maximum liquid temperature is stated on thepump nameplate. It depends on the shaft sealchosen.For EN-GJL-250 cast-iron pump housings, localregulations may not allow liquid temperatures above120 °C.

13.1.3 Maximum operating pressure

Do not exceed the maximum operatingpressure stated on the pump nameplate.

1

2

3

TM07

5513

Pressures in the pump

Pos. Description

1 Maximum operating pressure, that ispressure above atmospheric pressure

2 Pump pressure

3 Inlet pressure

The total value of the inlet pressure and the pumppressure must be lower than the maximum operatingpressure stated on the pump nameplate. Operationagainst a closed valve gives the highest operatingpressure.

13.1.4 Minimum inlet pressurePay attention to the minimum inlet pressure to avoidcavitation. The risk of cavitation is higher in thefollowing situations:• The liquid temperature is high.• The flow rate is considerably higher than the

pump's nominal flow rate.• The pump is operating in an open system with

suction lift.• The liquid is sucked through long pipes.

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• The inlet conditions are poor.• The operating pressure is low.

13.1.5 Maximum inlet pressureThe inlet pressure + the pump pressure must belower than the maximum operating pressure statedon the pump nameplate. Operation against a closedvalve gives the highest operating pressure.The NB pumps comply with IEC 60335-2-51 if themaximum inlet pressure is equal to or less than 1.2MPa (12 bar).

13.1.6 Minimum flow rateThe pump must not run against a closed valve as itcauses an increase in temperature and a formation ofsteam in the pump. That may result in shaft damage,impeller erosion, short life of bearings and damage tothe stuffing boxes or mechanical shaft seals due tostress or vibration. The continuous stable flow ratemust be at least 10 % of the rated flow rate. The ratedflow rate is stated on the pump nameplate.

13.1.7 Maximum flow rateDo not exceed the maximum flow rate, otherwisethere is a risk of cavitation or overload, for instance.The minimum and maximum flow rates are indicatedeither on the performance curve pages in the relevantdata booklets, or on a curve for a specific pump whenselecting it in the Grundfos Product Center. Seewww.grundfos.com.

NBG 50-32-160/163, 50HzPumped liquid = WaterLiquid temperarure = 20 CDensity = 1000 kg/m3

o

H

38

(m)

32

28

24

20

16

12

8

4

00 5 10 15 20 15 30 Q(m /h)3

A

B

TM05

2444

Example from Grundfos Product Center inwww.grundfos.com showing minimum andmaximum flow rate

Pos. Description

A Minimum flow rate

B Maximum flow rate

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English (GB)

13.1.8 Shaft sealsThe operating range of the seals is described for twomain applications: Pumping of water or pumping ofcoolants.Seals with a temperature range of 0 °C and up aremainly used for pumping water, while seals fortemperatures below 0 °C are mainly intended forcoolants.

We do not recommend that you operatethe pump at maximum temperature andmaximum pressure at the same time asthe seal life will be reduced and periodicnoise will occur.

Shaft seal diameter [mm] 28, 38 48 55 60

Shaft seal type Sealfaces Rubber Code Temperature

range Max. pressure [bar]

Bellows seal,type B,unbalanced

AQ1 EPDM BAQE 0-120 °C 16 16 16 16

AQ1 FKM BAQV 0-90 °C 16 16 16 16

BQ1 EPDM BBQE 0-120 °C 16 16 16 16

BQ1 FKM BBQV 0-90 °C 16 16 16 16

Q7Q7 EPDM BQQE -25 to +120 °C 16 16 16 16

Q7Q7 FKM BQQV -10 to +90 °C 16 16 16 16

O-ring seal, typeA, unbalanced

Q1A EPDM AQAE 0-120 °C 16 16 16 16

Q1A FKM AQAV 0-90 °C 16 16 16 16

Q1Q1 EPDM AQQE -25 to +90 °C 16 16 16 16

Q1Q1 FKM AQQV -10 to +90 °C 16 16 16 16

Q1Q1 HNBR AQQX -15 to +90 °C 16 16 16 16

Q1Q1 FFKM AQQK 0-90 °C 16 16 16 16

O-ring seal, typeD, balanced

AQ1 FXM DAQF 0-140 °C 25 25 25 25

Q6Q6 EPDM DQQE -20 to +120 °C 25 25 25 25

Q6Q6 FKM DQQV -10 to +90 °C 25 25 25 25

Q6Q6 HNBR DQQX -15 to +120 °C 25 25 25 25

Q6Q6 FFKM DQQK 0-120 °C 25 25 25 25

13.2 Electrical dataSee the motor nameplate.

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13.3 Sound pressure levelThe data in this table applies for pumps includingmotor, such as MG, MMG and Siemens motors.The values stated are maximum sound pressurelevels. Tolerances are according to ISO 4871.

50 Hz motor

2-pole: n = 2900 min-1

4-pole: n = 1450 min-1

6-pole: n = 970 min-1

Motor [kW]

Maximum sound pressure level[dB(A)] - ISO 3743

Three-phase motors

2-pole 4-pole 6-pole

0.25 56 41 -

0.37 56 45 -

0.55 57 42 40

0.75 56 42 43

1.1 59 50 43

1.5 58 50 47

2.2 60 52 52

3 59 52 63

4 63 54 63

5.5 63 57 63

7.5 60 58 66

11 60 60 66

15 60 60 66

18.5 60 63 66

22 66 63 66

30 71 65 59

37 71 66 60

45 71 66 58

55 71 67 58

75 73 70 61

90 73 70 61

110 76 70 61

132 76 70 61

160 76 70 65

200 76 70 -

Motor [kW]

Maximum sound pressure level[dB(A)] - ISO 3743

Three-phase motors

2-pole 4-pole 6-pole

250 82 73 -

315 82 73 -

355 77 75 -

400 - 75 -

60 Hz motor

2-pole: n = 3500 min-1

4-pole: n = 1750 min-1

6-pole: n = 1170 min-1

Motor [kW]

Maximum sound pressure level[dB(A)] - ISO 3743

Three-phase motors

2-pole 4-pole 6-pole

0.25 - - -

0.37 - - -

0.55 - - -

0.75 - - -

1.1 64 51 -

1.5 64 52 62

2.2 65 55 60

3 54 57 67

4 68 56 67

5.5 68 62 67

7.5 73 62 70

11 70 66 70

15 70 66 57

18.5 70 63 57

22 70 63 59

30 71 65 59

37 71 65 61

45 75 65 64

55 75 68 64

75 77 71 63

90 77 71 63

110 81 75 62

42

English (GB)

Motor [kW]

Maximum sound pressure level[dB(A)] - ISO 3743

Three-phase motors

2-pole 4-pole 6-pole

132 81 75 62

160 81 75 66

200 81 75 70

280 86 - 72

288 - 77 75

353 86 - -

362 - 77 -

398 81 - -

408 - 79 -

460 - 79 -

14. Disposing of the productThis product or parts of it must be disposed of in anenvironmentally sound way.1. Use the public or private waste collection service.

2. If this is not possible, contact the nearestGrundfos company or service workshop.

The crossed-out wheelie bin symbolon a product means that it must bedisposed of separately from householdwaste. When a product marked withthis symbol reaches its end of life, takeit to a collection point designated bythe local waste disposal authorities.The separate collection and recyclingof such products will help protect theenvironment and human health.

See also end-of-life information atwww.grundfos.com/product-recycling.

43

Engl

ish

(GB)

ArgentinaBombas GRUNDFOS de Argentina S.A.Ruta Panamericana km. 37.500industin1619 - Garín Pcia. de B.A.Tel.: +54-3327 414 444Fax: +54-3327 45 3190

AustraliaGRUNDFOS Pumps Pty. Ltd.P.O. Box 2040Regency ParkSouth Australia 5942Tel.: +61-8-8461-4611 Fax: +61-8-8340-0155

AustriaGRUNDFOS Pumpen VertriebGes.m.b.H.Grundfosstraße 2A-5082 Grödig/SalzburgTel.: +43-6246-883-0Fax: +43-6246-883-30

BelgiumN.V. GRUNDFOS Bellux S.A.Boomsesteenweg 81-83B-2630 AartselaarTel.: +32-3-870 7300Fax: +32-3-870 7301

BelarusПредставительство ГРУНДФОС вМинске220125, Минскул. Шафарнянская, 11, оф. 56, БЦ«Порт»Тел.: +375 17 397 397 3 +375 17 397 397 4Факс: +375 17 397 397 1E-mail: minsk@grundfos.com

Bosnia and HerzegovinaGRUNDFOS SarajevoZmaja od Bosne 7-7ABiH-71000 SarajevoTel.: +387 33 592 480Fax: +387 33 590 465www.ba.grundfos.com E-mail: grundfos@bih.net.ba

BrazilBOMBAS GRUNDFOS DO BRASILAv. Humberto de Alencar CasteloBranco, 630CEP 09850 - 300São Bernardo do Campo - SPTel.: +55-11 4393 5533Fax: +55-11 4343 5015

BulgariaGrundfos Bulgaria EOODSlatina DistrictIztochna Tangenta street no. 100BG - 1592 SofiaTel.: +359 2 49 22 200Fax: +359 2 49 22 201E-mail: bulgaria@grundfos.bg

CanadaGRUNDFOS Canada inc.2941 Brighton RoadOakville, OntarioL6H 6C9Tel.: +1-905 829 9533Fax: +1-905 829 9512

ChinaGRUNDFOS Pumps (Shanghai) Co. Ltd.10F The Hub, No. 33 Suhong RoadMinhang DistrictShanghai 201106 PRCTel.: +86 21 612 252 22 Fax: +86 21 612 253 33

ColumbiaGRUNDFOS Colombia S.A.S.Km 1.5 vía Siberia-Cota Conj. PotreroChico,Parque Empresarial Arcos de Cota Bod.1A.Cota, CundinamarcaTel.: +57(1)-2913444Fax: +57(1)-8764586

CroatiaGRUNDFOS CROATIA d.o.o.Buzinski prilaz 38, BuzinHR-10010 ZagrebTel.: +385 1 6595 400Fax: +385 1 6595 499www.hr.grundfos.com

Czech RepublicGRUNDFOS Sales Czechia and Slovakias.r.o.Čajkovského 21779 00 OlomoucTel.: +420-585-716 111

DenmarkGRUNDFOS DK A/SMartin Bachs Vej 3DK-8850 BjerringbroTel.: +45-87 50 50 50Fax: +45-87 50 51 51E-mail: info_GDK@grundfos.comwww.grundfos.com/DK

EstoniaGRUNDFOS Pumps Eesti OÜPeterburi tee 92G11415 TallinnTel.: + 372 606 1690Fax: + 372 606 1691

FinlandOY GRUNDFOS Pumput ABTrukkikuja 1FI-01360 VantaaTel.: +358-(0) 207 889 500

FrancePompes GRUNDFOS Distribution S.A.Parc d’Activités de Chesnes57, rue de MalacombeF-38290 St. Quentin Fallavier (Lyon)Tel.: +33-4 74 82 15 15Fax: +33-4 74 94 10 51

GermanyGRUNDFOS GMBHSchlüterstr. 3340699 ErkrathTel.: +49-(0) 211 929 69-0Fax: +49-(0) 211 929 69-3799E-mail: infoservice@grundfos.deService in Deutschland:kundendienst@grundfos.de

GreeceGRUNDFOS Hellas A.E.B.E.20th km. Athinon-Markopoulou Av.P.O. Box 71GR-19002 PeaniaTel.: +0030-210-66 83 400Fax: +0030-210-66 46 273

Hong KongGRUNDFOS Pumps (Hong Kong) Ltd.Unit 1, Ground floor, Siu Wai industrialCentre29-33 Wing Hong Street & 68 King LamStreet, Cheung Sha WanKowloonTel.: +852-27861706 / 27861741Fax: +852-27858664

HungaryGRUNDFOS Hungária Kft.Tópark u. 8H-2045 TörökbálintTel.: +36-23 511 110Fax: +36-23 511 111

IndiaGRUNDFOS Pumps india Private Limited118 Old Mahabalipuram RoadThoraipakkamChennai 600 097Tel.: +91-44 2496 6800

IndonesiaPT GRUNDFOS PompaGraha intirub Lt. 2 & 3Jln. Cililitan Besar No.454. Makasar,Jakarta TimurID-Jakarta 13650Tel.: +62 21-469-51900Fax: +62 21-460 6910 / 460 6901

IrelandGRUNDFOS (Ireland) Ltd.Unit A, Merrywell Business ParkBallymount Road LowerDublin 12Tel.: +353-1-4089 800Fax: +353-1-4089 830

ItalyGRUNDFOS Pompe Italia S.r.l.Via Gran Sasso 4I-20060 Truccazzano (Milano)Tel.: +39-02-95838112Fax: +39-02-95309290 / 95838461

JapanGRUNDFOS Pumps K.K.1-2-3, Shin-Miyakoda, Kita-kuHamamatsu431-2103 JapanTel.: +81 53 428 4760Fax: +81 53 428 5005

KoreaGRUNDFOS Pumps Korea Ltd.6th Floor, Aju Building 679-5Yeoksam-dong, Kangnam-ku, 135-916Seoul, KoreaTel.: +82-2-5317 600Fax: +82-2-5633 725

Gru

ndfo

s co

mpa

nies

LatviaSIA GRUNDFOS Pumps LatviaDeglava biznesa centrsAugusta Deglava ielā 60LV-1035, Rīga,Tel.: + 371 714 9640, 7 149 641Fax: + 371 914 9646

LithuaniaGRUNDFOS Pumps UABSmolensko g. 6LT-03201 VilniusTel.: + 370 52 395 430Fax: + 370 52 395 431

MalaysiaGRUNDFOS Pumps Sdn. Bhd.7 Jalan Peguam U1/25Glenmarie industrial Park40150 Shah Alam, SelangorTel.: +60-3-5569 2922Fax: +60-3-5569 2866

MexicoBombas GRUNDFOS de MéxicoS.A. de C.V.Boulevard TLC No. 15Parque industrial Stiva AeropuertoApodaca, N.L. 66600Tel.: +52-81-8144 4000Fax: +52-81-8144 4010

NetherlandsGRUNDFOS NetherlandsVeluwezoom 351326 AE AlmerePostbus 220151302 CA ALMERETel.: +31-88-478 6336Fax: +31-88-478 6332E-mail: info_gnl@grundfos.com

New ZealandGRUNDFOS Pumps NZ Ltd.17 Beatrice Tinsley CrescentNorth Harbour Industrial EstateAlbany, AucklandTel.: +64-9-415 3240Fax: +64-9-415 3250

NorwayGRUNDFOS Pumper A/SStrømsveien 344Postboks 235, LeirdalN-1011 OsloTel.: +47-22 90 47 00Fax: +47-22 32 21 50

PolandGRUNDFOS Pompy Sp. z o.o.ul. Klonowa 23Baranowo k. PoznaniaPL-62-081 PrzeźmierowoTel.: (+48-61) 650 13 00Fax: (+48-61) 650 13 50

PortugalBombas GRUNDFOS Portugal, S.A.Rua Calvet de Magalhães, 241Apartado 1079P-2770-153 Paço de ArcosTel.: +351-21-440 76 00Fax: +351-21-440 76 90

RomaniaGRUNDFOS Pompe România SRLS-PARK BUSINESS CENTER, ClădireaA2, etaj 2Str. Tipografilor, Nr. 11-15, Sector 1, Cod013714Bucuresti, RomaniaTel.: 004 021 2004 100E-mail: romania@grundfos.ro

RussiaООО Грундфос Россияул. Школьная, 39-41Москва, RU-109544, Russia Тел. (+7) 495 564-88-00 (495) 737-30-00Факс (+7) 495 564 8811E-mail grundfos.moscow@grundfos.com

SerbiaGrundfos Srbija d.o.o.Omladinskih brigada 90b11070 Novi BeogradTel.: +381 11 2258 740Fax: +381 11 2281 769www.rs.grundfos.com

SingaporeGRUNDFOS (Singapore) Pte. Ltd. 25 Jalan Tukang Singapore 619264Tel.: +65-6681 9688Faxax: +65-6681 9689

SlovakiaGRUNDFOS s.r.o.Prievozská 4D 821 09 BRATISLAVATel.: +421 2 5020 1426sk.grundfos.com

SloveniaGRUNDFOS LJUBLJANA, d.o.o.Leskoškova 9e, 1122 LjubljanaTel.: +386 (0) 1 568 06 10Fax: +386 (0)1 568 06 19E-mail: tehnika-si@grundfos.com

South AfricaGRUNDFOS (PTY) LTD16 Lascelles Drive, Meadowbrook Estate1609 Germiston, JohannesburgTel.: (+27) 10 248 6000Fax: (+27) 10 248 6002E-mail: lgradidge@grundfos.com

SpainBombas GRUNDFOS España S.A.Camino de la Fuentecilla, s/n E-28110 Algete (Madrid)Tel.: +34-91-848 8800Fax: +34-91-628 0465

SwedenGRUNDFOS ABBox 333 (Lunnagårdsgatan 6)431 24 MölndalTel.: +46 31 332 23 000Fax: +46 31 331 94 60

SwitzerlandGRUNDFOS Pumpen AGBruggacherstrasse 10CH-8117 Fällanden/ZHTel.: +41-44-806 8111Fax: +41-44-806 8115

TaiwanGRUNDFOS Pumps (Taiwan) Ltd.7 Floor, 219 Min-Chuan RoadTaichung, Taiwan, R.O.C.Tel.: +886-4-2305 0868Fax: +886-4-2305 0878

ThailandGRUNDFOS (Thailand) Ltd.92 Chaloem Phrakiat Rama 9 RoadDokmai, Pravej, Bangkok 10250Tel.: +66-2-725 8999Fax: +66-2-725 8998

TurkeyGRUNDFOS POMPA San. ve Tic. Ltd.Sti.Gebze Organize Sanayi Bölgesi Ihsan dede Caddesi2. yol 200. Sokak No. 20441490 Gebze/ Kocaeli Tel.: +90 - 262-679 7979Fax: +90 - 262-679 7905E-mail: satis@grundfos.com

UkraineБізнес Центр ЄвропаСтоличне шосе, 103м. Київ, 03131, УкраїнаTel.: (+38 044) 237 04 00Fax: (+38 044) 237 04 01E-mail: ukraine@grundfos.com

United Arab EmiratesGRUNDFOS Gulf DistributionP.O. Box 16768Jebel Ali Free Zone, DubaiTel.: +971 4 8815 166Fax: +971 4 8815 136

United KingdomGRUNDFOS Pumps Ltd.Grovebury RoadLeighton Buzzard/Beds. LU7 4TLTel.: +44-1525-850000 Fax: +44-1525-850011

U.S.A.GRUNDFOS Water Utility Headquarters856 Koomey RoadBrookshire, Texas 77423 USA

UzbekistanGrundfos Tashkent, UzbekistanThe Representative Office of GrundfosKazakhstan in Uzbekistan38a, Oybek street, TashkentTel.: (+998) 71 150 3290 / 71 150 3291Fax: (+998) 71 150 3292

Revision InfoLast revised on 09-09-2020

Grundfos com

panies

96483177 04.2021

ECM: 1310103

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