Air Flow Control

08Mechanical flow rate controllers

Throttling, shut-off and non-return dampers

Volume control dampers

Overpressure dampers

292

Air flow control units

Overpressure dampers are used to equalize the pressures between adjacent rooms and for automatic interruption of air supply or air exhaust.

Volume control dampers regulate the air flow volume in ventilating ducts and air conditioning devices.

Throttling, shut-off and non-return dampers and flow rate controllers are used for control the air flow volume in ventilating ducts.


293

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

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WIR

L DI

FFUS

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SLO

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AIR

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SSU

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AIR

NO

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NAL

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MEN

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LOW

CO

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UN

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SOU

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ATT

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D A

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UVR

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■ Overpressure dampers

Overpressure dampers are used to equalize the pressures between adjacent rooms and for automatic interruption of air supply or air exhaust. Steel (Types JNŽ) or aluminium (Types ANŽ) overpressure dampers can be produced.

■ Volume control dampers

Volume control dampers regulate the air flow volume in ventilating ducts and air conditioning devices. We produce several construction types with manual, motor or pneumatic regulation.

■ Throttling, shut off and non return dampers, flow rate controllers

They are used to control the air flow volu-me in ventilating ducts.

Overview


RŽ-1 RŽ-2 RŽ-3 RŽ-1/G

RŽ-7

JNŽ-6 ANŽ-3, ANŽ-4 JNŽ-6W

Throttling, shut off and non return dampers

Mechanical flow rate controllers


DL RSKDL-2 ZL-2

MRP-2MRP-1 MRP-3 MRP-4

294


ContentPage

OVERPRESSURE DAMPERS 296

Overpressure dampers JNŽ-6, ANŽ-3, ANŽ-4 296

Louvre for maintaining the preset pressure difference JNŽ-6W 299

VOLUME CONTROL DAMPERS 301

Volume control dampers RŽ-1, RŽ-2, RŽ-3 301

Volume control dampers RŽ-7 308

COMBINATIONS 311

Combination of Protection louvres JZR-6 and AZR-4 with Overpressure damper JNŽ-6 311

Combination of Protection louvres JZR-6 and AZR-4 with Volume control damper RŽ-1 311

ThROTTLING, ShUT-OFF AND NON-RETURN DAMPERS 312

Throttling dampers DL 312

Throttling dampers DL-1, DL-2 314

Shut-off dampers ZL-1, ZL-2 316

Non-return damper RSK 318

MEChANICAL FLOW RATE CONTROLLERS 319

Mechanical flow-rate controller MRP-1 (Circular) 319

Mechanical flow-rate controller MRP-2 (Rectangular) 321

Mechanical flow-rate controller MRP-3 (Circular) 323

Mechanical flow-rate controller MRP-4 (Square) 328

MOTOR ACTUATORS BELIMO AND JOVENTA 333

Motor actuators 333

295

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TIN

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LES,

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NG

VAL

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CIR

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S,

SQU

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DIF

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SWIR

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WIR

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S,

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UN

D D

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AIR

DIS

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PPLY

AIR

NO

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NAL

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JNŽ-6 ANŽ-3, ANŽ-4

H /

B

H /

B

7

B = B1+28H = H1+28

B2 = B1+23H2 = H1+23

H1 /

B1

H /

B

H2 /

B2

35

82.5

28

H1

/B

1

H1

/B

1

H1

+1

5/

B1

+1

5

120

82

.5

38

H1

/B

13

8

82

.5

JNŽ-6 ANŽ-3 ANŽ-4

■ Overpressure dampers JNŽ-6, ANŽ-3, ANŽ-4

ApplicationOverpressure dampers are used in all kinds of low pressure air conditioning, air heating ind ventilation, where it is necesary to equalise the pressure between adjacent rooms. They can be applied where the automatic break of the supply and exhaust air is required after conditioning-, heating- or ventilation device has been turned off.

DescriptionOverpressure dampers consist of supporting frame made of galvanized sheet steel (steel overpressure dampers JNŽ-6) or aluminium section anodised in natural aluminium colour (aluminium overpressure dampers ANŽ-3 and ANŽ-4) and horizontal swinging vanes of sheet aluminium. The horizontal vanes are inserted into plastic bearings, temperature resistant to 80 °C. Sealing stripe, attached on lower part of vanes reduces noise.

CautionIn the cases of effective velocities exceeding the values provided in the diagram of the determination of the total pressure drop on page 14, or in the cases of a likely exposure of the louvres to strong wind gusts, we recommend the installation of a constraint crossbar.

Sizes:All combinations of B1 and H1 according to the table of dimensions are possible. Non-standard dimensions are available on request.

Sizes JNŽ-6, ANŽ-3, ANŽ-4H1 (mm) 100 150 200 250 300 400 500 600 700 800 900 1000 1100 1200

B1 (mm) 200 250 300 400 500 600 700 800 900 1000 1100 1200

n 1 1 2 3 3 5 6 7 8 10 11 12 13 14

n – number of vanes


296

Air flow control unitsOverpressure dampers

H /

B

H /

B

7

B = B1+28H = H1+28

B2 = B1+23H2 = H1+23

H1 /

B1

H /

B

H2 /

B2

35

82.5

28

H1

/B

1

H1

/B

1

H1

+1

5/

B1

+1

5

120

82

.5

38

H1

/B

13

8

82

.5

H /

B

H /

B

7

B = B1+28H = H1+28

B2 = B1+23H2 = H1+23

H1 /

B1

H /

B

H2 /

B2

35

82.5

28

H1

/B

1

H1

/B

1

H1

+1

5/

B1

+1

5

120

82

.5

38

H1

/B

13

8

82

.5

H /

B

H /

B

7

B = B1+28H = H1+28

B2 = B1+23H2 = H1+23

H1 /

B1

H /

B

H2 /

B2

35

82.5

28

H1

/B

1

H1

/B

1

H1

+1

5/

B1

+1

5

120

82

.5

38

H1

/B

13

8

82

.5

H1H1

H3

H /

B

B1

B / H

B1 B1

B3

H1

1 2 3 4 5 60.55

20

30

40

50

80

10

100

Hitrost zraka v (m/s) v efektivnem preseku Aef

Pade

c tla

ka Δ

p cel (

Pa)

H1H1

H3

H /

B

B1

B / H

B1 B1

B3

H1

1 2 3 4 5 60.55

20

30

40

50

80

10

100

Hitrost zraka v (m/s) v efektivnem preseku Aef

Pade

c tla

ka Δ

p cel (

Pa)

Overpressure damper is fastened in built-in frame of angle steel. Designation: JNŽ-6/3

Overpressure damper is fastenedon duct. Connection accessoriesare not supplied. Designation: JNŽ-6

Overpressure damper is fastened in built-in frameDesignation: ANŽ-3/2, ANŽ-4/2

H3=(2xH1)+56 B3=(2xB1)+56

Combinations of larger overpressure dampers JNŽ-6, ANŽ-3, ANŽ-4:

Installation

297

VEN

TILA

TIN

G G

RIL

LES,

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NTI

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VAL

VES

CIR

CULA

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S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

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WIR

L DI

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S,

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UN

D D

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AIR

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PPLY

AIR

NO

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LOW

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H1H1

H3

H /

B

B1

B / H

B1 B1

B3

H1

1 2 3 4 5 60.55

20

30

40

50

80

10

100

Air velocity v (m/s) at the effective area Aef

Pres

sure

dro

pΔ

p cel

(Pa)

Example of calculation for JNŽ-6, ANŽ-3, ANŽ-4

Aef = B1 x (H1-10-(13 x n)) in m² where n is a number of vanes.B1 = 500 mm, H1 = 400 mm, n = 5Q = 2000 m³/hAef = 500 x (400 -10-(13 x 5)) = 162500 mm² ≥ 0.16 m²v = (Q / 3600) / Aef = (2000 / 3600) / 0.16 = 3.47 m/s

Δpcel (Pa) Pressure drop

Ordering example

Steel overpressure damperwith installation frame: JNŽ-6/3 B1xH1Size: B1=500 H1=428Pcs: 4

Aluminium overpressure damper with installation frame: ANŽ-4/2 B1xH1Size: B1=500 H1=428Pcs: 4

Pressure drop diagramUse the diagram to determine the total pressure drop in respect of air velocity at the free sectional area.

298


B1 B1+76

H1

H1

+76

B1 B1+76

120

H1

H1

+76

120

Vgradnje:

Standardne dimenzije:

Mo`ne so vse kombinacije {irin B1 in vi{in H1 potabeli dimenzij.Po èlji izdelujemo nadtla~ne àluzije poljubnihvmesnih dimenzij.

n ... {tevilo lamel

H1

/B

1

H1

+1

5/

B1

+1

5

120

82

.5

38

H1

/B

13

8

82

.5

n... number of vanes

100 150 200 250 300 400 500 600 700 800 900 1000200 250 300 400 500 600 700 800 900 1000

1 1 2 3 3 5 6 7 8 10 11 12

H1(mm)B1(mm)

n

Size JN @-6W

■ Louvre for maintaining the preset pressure difference JNŽ-6W

ApplicationThe JNŽ-6W louvre for maintaining the preset pressure difference is designed for maintaining the preset pressure difference between two rooms or between indoors and outdoors. Depending on its orientation, the louvre can support overpressure or underpressure. It is a rapid-response precisely adjustable passive element for maintaining the pressure difference and is not airtight. Standard dimensions: from 200x100 to 1000x1000 with 50 mm steps. Other dimensions available upon request.

It can be used as• an underpressure louvre – to prevent the egress of

substances (chemicals, smoke, etc.);• an overpressure louvre for rooms where preventing the

ingress of polluted air is desired;• an overpressure valve – to prevent the ingress of gases

into smokeless areas.

Description• The blades are interconnected using connecting rods. • Precise adjustments are performed on-site.• Easy to set up: weights are placed on the threaded rods

and secured against unscrewing using nuts.

Size JNŽ-6W

H1 (mm) 100 150 200 250 300 400 500 600 700 800 900 1000

B1 (mm) 200 250 300 400 500 600 700 800 900 1000

n 1 1 2 3 3 5 6 7 8 10 11 12


SizesAll combinations of B1 and H1 according to the table of dimensions are possible. Non-standard dimensions are available on request.

Installation

299

VEN

TILA

TIN

G G

RIL

LES,

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NTI

LATI

NG

VAL

VES

CIR

CULA

R D

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S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

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UN

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JN@-6W/DP B1xH1

JN@-6W/3 B1xH1B1=500 H1=4284

Diagram za določitev celotnega padca tlaka:

Air velocity (m/s) at the effective area Aef

1 2 3 4 5 60.55

20

30

40

50

80

10

100 Iz diagrama dobimo celotni padec tlaka v odvisnosti od hitrosti zra~nega curka

B1 = 500 mm, H1 = 400mm, n = 5Q = 2000 m3/hAef = 500 x (400 -10 -(13x5)) = 162500 mm2 => 0,16 m2

v = (Q / 3600) / Aef = (2000 / 3600) / 0,16 = 3,47 m/s

na prostem preseku.

Primer naro~ila:

Žaluzija za vzdrževanje nastavljene tlačne razlike JNŽ-6W:Žaluzija za vzdrževanje nastavljene tlačne razlike z vgradnim okvirjem JNŽ-6W/3:Dimenzije:[tevilo kosov:

DP: Nastavljena tlačna razlikaOpomba: Vrednost želene nastavljene tlačne razlike mora biti nastavljena posebej pri naročilu.

B1 x (H1-10-(13 x n)) izraèn v m2 pri ~emer je n {tevilo lamel.A =ef

Primer izračuna za JNŽ-6W

Pres

sure

dro

pΔ

p cel

(Pa)

Example of calculation for JNŽ-6W

B1 = 500 mm, H1 = 400mm, n = 5Q = 2000 m³/hAef = 500 x (400 -10 -(13 x 5)) = 162500 mm² ≥ 0.16 m²v = (Q / 3600) / Aef = (2000 / 3600) / 0.16 = 3.47 m/s

Δpcel pressure drop

Ordering example

Louvre for maintaining the presetpressure difference JNŽ-6W: JNŽ-6W/DP B1xH1Louvre for maintaining the presetpressure difference withinstallation frame JNŽ-6W/3: JNŽ-6W/3 B1xH1Dimensions: B1=500 H1=428Pcs: 4

DP: Preset pressure differenceNote: Value of the desired preset pressure difference must be determined extra by the order.

Use the diagram to determine the total pressure drop in respect of air velocity at the free sectional area.Aef = B1 x (H1-10-(13 x n)) in m² where n is a number of vanes.

Pressure drop diagram:

300


B1

B1+76

H1

H1+7

6

φ16 200

38

10

180

B1

B1+76

38

10

180

200

H1

H1+7

6

φ16

180B1

B1+76

H1+7

6H1

RŽ-1 RŽ-2

RŽ-3 RŽ-1/G

■ Volume control dampers RŽ-1, RŽ-2 and RŽ-3

ApplicationVolume control dampers are designed for regulation of air flow and pressure in ventilating ducts and air handling units. They are installed as independent devices or combined with protection- or overpressure louvers.

DescriptionThey are made of galvanised sheet steel. Volume control dampers consist of supporting frame and interconnected blades. Blades are inserted into PVC – bearings. When operating by temperatures, higher then 70° C bearings are made of brass. Blades can be moved manually or by the means of the electric actuator. Pneumatic control is also possible.

Type RŽ-1A• Parallel blades• Bearings made of PVC or brass (higher operating

temperatures)• Galvanised supporting frame RŽ-1A/3• Control handle is attached to the blade which is

closer to the centre (from the top side)


301

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S,

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VA

RIAB

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WIR

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SER

S,

RO

UN

D D

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RS

AIR

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PPLY

AIR

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Air flow control unitsVolume control dampers

B1

B1+76

H1

H1+7

6

φ16 200

38

10

180

B1

B1+76

38

10

180

200

H1

H1+7

6

φ16

180B1

B1+76

H1+7

6H1

B1

B1+76

H1

H1+7

6

φ16 200

38

10

180

B1

B1+76

38

10

180

200

H1

H1+7

6

φ16

180B1

B1+76

H1+7

6H1

φ12

55 H1H1

+80

B1B1+80

φ8

250 40 40

130 130

20

B1

B1+76

H1

H1+7

6

38

10

180

200

φ16

Type RŽ-1B• The same construction as RŽ-1A• Counterdirectional blades

Type RŽ-1A, B/G• Same design as RŽ-1A or RŽ-1B• Heaters built in blades• Operation thermostat 0-40 °C• Temperature limitter 85 °C• Manual or motor control• Heater capacity depending on the dimension

Type RŽ-2• The same construction as RŽ-1A• Special sealing stripe between blades as well as between

Blades and frame• Air-tight construction

302


φ12

55 H1H1

+80

B1B1+80

φ8

250 40 40

130 130

20

B1

B1+76

H1

H1+7

6

38

10

180

200

φ16

Type RŽ-3A, B• Type A parallel blades• Type B counterdirectional blades• Blade made of sectional sheet steel• Bearings made of PVC or brass (higher

operating temperatures)

All combinations ob B1 and H1 according to thetable of dimensions are possible.

Volume control dampers RŽ-1/A and RŽ-1/B areavailable in all sizes.

Table of dimensions:

Sizes RŽ-1

H1 (mm) 100 150 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

B1 (mm) 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

n 1 1 2 2 2 3 3 4 4 5 5 6 7 7 8 9 9 10 10 11 12 13


Sizes RŽ-2

H1 (mm) 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600

B1 (mm) 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600

n 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Sizes RŽ-3

H1 (mm) 100 150 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

B1 (mm) 200 250 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

n 1 1 2 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


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TIN

G G

RIL

LES,

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LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

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UN

D D

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DIF

FUSE

RS

AIR

DIS

PLAC

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PPLY

AIR

NO

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SEX

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MEN

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LOW

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75

H/B

38

180

H+6/

B+6

H/B

75

H/B

38

180

H+6/

B+6

H/B

75

H/B

38

180

H+6/

B+6

H/B

75

H/B

38

180

H+6/

B+6

H/B

75

H/B

38

180

H+6/

B+6

H/B

Manual control with handle• Mechanism for locking selected

position• Type RŽ-1/R

Pneumatic control with cylinder• Operating pressure 1.2 or 6 bar• Type RŽ-1/P

Motor control with electric actuator• Control via the electric actuator accor-

ding to the table of motor actuators on page 333

Regulation types

Pneumatic control• One-way pneumatic cylinder with

return spring• Output power over 18 Nm• Type RŽ-2/P

Installation

Direct installation in duct. Fastening accessories are not supplied.

Installation in built-in frame (fastened with screws). Built-in frame is made of galvanised sheet steel with point-welded mounting anchors. Designation: RŽ-1, 2/3

304


125125

9.5

BH

2020

asymetrical

9.5

125125

symetrical

250250

8

B

H20

20

asymetrical

8

250250

symetrical

125125

9.5

B

H20

20

asymetrical

9.5

125125

symetrical

250250

8

B

H20

20

asymetrical

8

250250

symetrical

35/35/475/35/2

B2

B1 150 B1

35/35/4

H176

H1

H2

B1

Asymetrical

Asymetrical

Symetrical

Symetrical

Hole arrangement on dampers RŽ-1A, B and RŽ-2:

Hole arrangement on dampers RŽ-3:

Ordering example

Volume control damper: RŽ-1A divided acc. to BSizes: B2=4150 H1=840Connection frame: H1=840Pcs: 3, 6

Installation of volume control dampers of larger dimensions:

Combinations according to the width:

Connection frame supplied as per order.Dimension upon customer’s request.B2 = (2xB1) + 150

305

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

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SOU

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ATT

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35/35/475/35/2

B2

B1 150 B1

35/35/4

H176

H1

H2

B1

Ordering key

R Manual controlB Power driven but without actuator

B1/J1 Actuator LM24A / DAN 1.NB2/J2 Actuator LM230A / DAN 2.NB3/J3 Actuator LM 24A SR / DMN 1.2NB4/J4 Actuator NM 24A / DAS 1.NB5/J5 Actuator NM 230A / DAS 2.NB6/J6 Actuator NM 24A-SR / DMS 1B7/J7 Actuator SM 24A / DA 1B8/J8 Actuator SM 230A / DA 2B9/J9 Actuator SM 24A SR (continuous regulation) / DM 1.1

B10/J10 Actuator SM 230A SR (continuous regulation) / DM 2.2B11/J11 Actuator GM 24A / DAG 1B12/J12 Actuator GM 230A / DAG 2B13/J13 Actuator GM 24A SR (continuous regulation) / DMG 1.1

P Pneumatic control

3 Installation frame/ Without installation frame

G Heaters built in blades

A Parallel bladesB Counterdirectional blades

1, 2, 3 Type of the volume control damper RŽ

Ordering example

Volume control damper: RŽ-1A divided acc. to HSizes: B1=400 H2=4066Pcs: H2=4066No. of pieces: 3

Combinations according to the height:

Connection frame supplied as per order.Dimension upon customer’s request.H2 = (2xH1) + 76

RŽ-1 A / G / 3 / R B1 x H1

Note:The range of applicability of individual actuators – see table on page 333.

306


V

H/B

α

Δp

RŽ-1A RŽ-1B

L WA

(dB(

A))

RŽ-2

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

20

10

5

80° 70°

60°

50°

40°

30°

20°

10°

5 0

60

7 0

80

9 0

4 0

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

10°

10

5

80°

20

5060

7080

90

20°

30°

40°

50°60°70°

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

5010°

10

5

80° 70° 50° 40°

20°

30°

20

60°

4050

6070

8090

L WA

(dB(

A)) L WA

(dB(A))

Hitrost zraka v (m/s))s/m( v akarz tsortiH)s/m( v akarz tsortiH

elemal tokelemal tokelemal tok

Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

kaΔ

p(Pa

)

RŽ-3A

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 70° 60° 50°

40°

10°

20°

30°

50

40

6070

8090

L WA

(dB(

A))

kot lamele

Hitrost zraka v (m/s)

Pade

c tla

ka Δ

p(Pa

)

RŽ-3B

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 60° 50°

10°

20°

40° 30°

9080

706 0

5040

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

V

H/B

α

Δp

RŽ-1A RŽ-1B

L WA

(dB(

A))

RŽ-2

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

20

10

5

80° 70°

60°

50°

40°

30°

20°

10°

5 0

60

7 0

80

9 0

4 0

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

10°

10

5

80°

20

5060

7080

90

20°

30°

40°

50°60°70°

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

5010°

10

5

80° 70° 50° 40°

20°

30°

20

60°

4050

6070

8090

L WA

(dB(

A)) L WA

(dB(A))



Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

kaΔ

p(Pa

)

RŽ-3A

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 70° 60° 50°

40°

10°

20°

30°

50

40

6070

8090

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

RŽ-3B

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 60° 50°

10°

20°

40° 30°

9080

706 0

5040

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

V

H/B

α

Δp

RŽ-1A RŽ-1B

L WA

(dB(

A))

RŽ-2

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

20

10

5

80° 70°

60°

50°

40°

30°

20°

10°

5 0

60

7 0

80

9 0

4 0

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

10°

10

5

80°

20

5060

7080

90

20°

30°

40°

50°60°70°

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

5010°

10

5

80° 70° 50° 40°

20°

30°

20

60°

4050

6070

8090

L WA

(dB(

A)) L WA

(dB(A))



Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

kaΔ

p(Pa

)

RŽ-3A

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 70° 60° 50°

40°

10°

20°

30°

50

40

6070

8090

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

RŽ-3B

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 60° 50°

10°

20°

40° 30°

9080

706 0

5040

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

V

H/B

α

Δp

RŽ-1A RŽ-1B

L WA

(dB(

A))

RŽ-2

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

20

10

5

80° 70°

60°

50°

40°

30°

20°

10°

5 0

60

7 0

80

9 0

4 0

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

50

10°

10

5

80°

20

5060

7080

90

20°

30°

40°

50°60°70°

0 0.5 1 2 3 4 5 10 15

1500

1000

500

300

200

100

5010°

10

5

80° 70° 50° 40°

20°

30°

20

60°

4050

6070

8090

L WA

(dB(

A)) L WA

(dB(A))



Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

ka Δ

p(Pa

)

Pade

c tla

kaΔ

p(Pa

)

RŽ-3A

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 70° 60° 50°

40°

10°

20°

30°

50

40

6070

8090

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

RŽ-3B

0 0.5 1 2 3 4 5 10 15

15001000

500

300

200

100

50

20

10

5

80° 60° 50°

10°

20°

40° 30°

9080

706 0

5040

L WA

(dB(

A))

kot lamele


Pade

c tla

ka Δ

p(Pa

)

Pressure drop and sound power level diagrams

Definition of symbols

Q (m³/h) Air flow volumeα (°) Blade inclinationΔpcel (Pa) Pressure dropLWA (dB(A)) Sound power levelv (m/s) Air velocity at the sectional

area B x H

Technical data

Pres

sure

dro

pPr

essu

re d

rop

Pres

sure

dro

pPr

essu

re d

rop

Pres

sure

dro

p

Air velocity

Air velocity

Air velocity

Blade angle

Blade angle

Blade angleBlade angle

Blade angle

Air velocity

Air velocity

307

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


1. Frame of extruded aluminium sections.

2. Bar of aluminium sections (installed by B>1200 mm).

3. Blade made of extruded aluminium sections.

4. Plastic gear wheel.5. Handle for manual control and

locking made of aluminium alloy.6. Rubber sealant.

■ Volume control damper RŽ-7

ApplicationVolume control dampers are designed for regulation of air flow and pressure in ventilating ducts and air handling units.

DescriptionFrame and blades are made of extruded aluminium sections. Blades are inserted in plastic bearings. They are driven via the plastic gear wheels, fixed in the frame section with plastic holders. Mechanism is encased in separate housing and therefore protected from dust ant other influences. A rubber strip attached on blades provides better sealing. Blades open in opposed direction only. The dampers can be regulated manually (standard version) or power operated by pneumatic or electric actuator. Volume control damper is temperature resistant to 70 °C.

Construction and dimensions

Sizes RŽ-7H1 (mm) 110 210 310 410 510 610 710 810 910 1010 1110 1210 1310 1410 1510 1610 1710 1810 1910 2010

B1 (mm) 100 150 200 300 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000

n 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


308


145

120

30

214

75

45

12

.

L(+)220V / 50Hz (24V-)L+

PE

N(-)

stikalo

pnevmatskicilinder magnetni ventil 3/2 dušilka

tlačni vod

SM 24 SM 220

CAV 022CAV 42

2321 1 3

N L1(-) (+)

SGS,SGR

SM 220-SR

1 2 3

220 V-

N L1a b

1 2 3 4 N L1

+ Y -

Kontrola konč ne lege

a - odprto ODPRTO

b - odprto ZAPRTO

24 VAC

SM 24-SR

1 2 3 4 5

UYY 1 2

Y 0...10 V-1Y 0...20 V-2U 2...10 V-

145

120

30

214

75

45

12

.

L(+)220V / 50Hz (24V-)L+

PE

N(-)

switch

pnevmatskicylinde solenoid 3/2 damper

pressure line

SM 24 SM 220

CAV 022CAV 42

2321 1 3

N L1(-) (+)

SGS,SGR

SM 220-SR

1 2 3

220 V-

N L1a b

1 2 3 4 N L1

+ Y -


a - odprto ODPRTO

b - odprto ZAPRTO

24 VAC

SM 24-SR

1 2 3 4 5

UYY 1 2

Y 0...10 V-1Y 0...20 V-2U 2...10 V-

145

120

30

214

75

45

12

.

L(+)220V / 50Hz (24V-)L+

PE

N(-)

stikalo

pnevmatskicilinder magnetni ventil 3/2 dušilka

tlačni vod

SM 24 SM 220

CAV 022CAV 42

2321 1 3

N L1(-) (+)

SGS,SGR

SM 220-SR

1 2 3

220 V-

N L1a b

1 2 3 4 N L1

+ Y -


a - odprto ODPRTO

b - odprto ZAPRTO

24 VAC

SM 24-SR

1 2 3 4 5

UYY 1 2

Y 0...10 V-1Y 0...20 V-2U 2...10 V-

Manual control with handle and locking mechanism

Pneumatic actuator (1, 2 bar) Wiring scheme

Regulation types:

Power driven by electric actuator BELIMO

Wiring schemeTwo position control requires actuators type SM 24 or SM 220 with 15 Nm. of output power (see page 46) Continuous control and blades position of 0° – 90° is achieved with actuators SM 24-SR or SM 220-SR.

End position control

a – opened OPEN b – opened CLOSED

309

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


V

α°

pcel

H/B

L dB(A)

75°

45°

30°

15°a=

a=

a=

a= 60°a=

0.1 0.2 0.4 0.6 0.8 1 2 4 6 8 10 20

1

2

4

6

10

20

40

60

100

200

400

600

1000

2000

WA

50

60

70

80

90

Pade

c tla

ka Δ

p cel (P

a)


V

α°

pcel

H/B

L dB(A)

75°

45°

30°

15°a=

a=

a=

a= 60°a=

0.1 0.2 0.4 0.6 0.8 1 2 4 6 8 10 20

1

2

4

6

10

20

40

60

100

200

400

600

1000

2000

WA

50

60

70

80

90

Pade

c tla

ka Δ

p cel (P

a)



α ° Blade angleΔpcel (Pa) Pressure drop

differencev (m/s) Velocity in ductQ (m³/h) Air flowLWA (dB(A)) Sound power level

Volume control damper sealing:Closed volume control damper of 1 m² area has a leakage of approx. 50 m³/h at the pressure of 100 Pa.(Standard DIN 1946 permits leakage of 10 m³/h at equal conditions).

Pressure drop and sound power level diagram

v = Q(m³/h) / (H(m) x B(m) x 3600(s/h))

Ordering key


B1/J1 Actuator LM24A / DAN 1.NB2/J2 Actuator LM230A / DAN 2.NB3/J3 Actuator LM 24A SR / DMN 1.2NB4/J4 Actuator NM 24A / DAS 1.NB5/J5 Actuator NM 230A / DAS 2.NB6/J6 Actuator NM 24A-SR / DMS 1B7/J7 Actuator SM 24A / DA 1B8/J8 Actuator SM 230A / DA 2B9/J9 Actuator SM 24A SR (continuous regulation)

/ DM 1.1B10/J10 Actuator SM 230A SR/DM 2.2

P Pneumatic control

RŽ-7 / R B1 x H1

Note: The range of applicability of individual actuators – see table on page 333.

Air velocity

Pres

sure

dro

p

310


40

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

H 1+80/

B 1+80

82.5

38

21540

21582

.5

H 1+80/

B 1+80

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

38

H1+8

0 /

B1+8

0

H1 /

B1

H1+9

5 /

B1+9

5

H1 +

105

/ B1

+10

5

min 280

82.5

40

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

H 1+80/

B 1+80

82.5

38

215

40

215

82.5

H 1+80/

B 1+80

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

38

H1+8

0 /

B1+8

0

H1 /

B1

H1+9

5 /

B1+9

5

H1 +

105

/ B1

+10

5

min 280

82.5

40

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

H 1+80/

B 1+80

82.5

38

21540

21582

.5

H 1+80/

B 1+80

H 1+105

/B1+1

05

H 1+95/

B 1+95

H 1/B1

38

H1+8

0 /

B1+8

0

H1 /

B1

H1+9

5 /

B1+9

5

H1 +

105

/ B1

+10

5

min 280

82.5

CombinationsIf after the end of the operation we want to prevent the invasion of external air into the system, the combination of an overpres-sure damper with steel or aluminium protection louvres can be used. The A variant is used for the outtake of air, whereas the B variant is intended for its supply. The starting point can be the dimension of the overpressure damper or the dimension of the protection louvre. It is important for the dimensions to be in the same proportion, which is evident from the draft.Louvres and dampers are available separately or combined, as desired.

■ Combination of Protection louvres JZR-6 and AZR-4 with Overpressure damper JNŽ-6

Type A Exhaust air

Type B Supply air

Designations:JNŽ-6 + AZR-4/3 Type A JNŽ-6 + JZR-6/3 Type A

Designations:JNŽ-6 + AZR-4/3 Type B JNŽ-6 + JZR-6/3 Type B

■ Combination of Protection louvres JZR-6 and AZR-4 with Volume control damper RŽ-1

Designations:RŽ-1 + AZR-4/3 RŽ-1 + JZR-6/3

Ordering example

Combination: RŽ-1 + AZR-4/3Sizes: B1xH1

B1=1200 H1=510Pcs: 4

311

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES

Air flow control unitsCombinations

200

H2/

B2

H/B

Designations of motors:B1 (LM 24A)B2 (LM 220A)B3 (LM 24A SR) – continous regulation

■ Throttling dampers DL

ApplicationThrottling damper is designed for regulation of air flow volume. It is constructed to fit square ducts.

DescriptionDamper consists of housing and blade, both made of galvanised sheet steel and mechanism for altering the blade angel. All dampers can be outside insulated.

Dimensions:

B H B2 H2125 125 185 190

160125

220190

160 225

200125

260190

160 225200 265

250

125

310

190160 225200 265250 315

315

125

375

190160 225200 265250 315315 380

400

125

460

190160 225200 265250 315315 380400 465

500

125

560

190160 225200 265250 315315 380400 465500 565

630

125

690

190160 225200 265250 315315 380400 465500 565600 665

Throttling, shut-off and non-return dampers

312

Air flow control unitsThrottling, shut-off and non return dampers

100 200 300 400 500 1000 2000 3000 5000 10000 15000

B=125

H=125160160

200

200

250

250

315

315

400

400

500

500

630

630

Q(m3/h)

500

400

300

200

100

50

40

30

20

2 3 4 5 10 15

v(m/s)

Pade

c tla

k Δ

p t (Pa)

α

Kot la

mel

=90°

α

7872

6660

5448

4236

Pri kotu lamel 0° je padec tlaka zanemarljiv.

Pres

sure

dro

p

Pressure drop diagram

Ordering key


B1 Actuator LM 24AB2 ActuatorLM 230AB3 Actuator LM 24A SR (continous regulation)

DL / R B1 x H1Definition of symbols

Q (m³/h) Air flowv (m/s) Air velocity in the ductΔpcel (Pa) pressure drop difference

Pressure drop with 0° blade angle is negligible.

313

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


φ D1

O

12

3

45

C A CL

φD2

E

φD1

L CC

BA

DL-1

DL-1

DL-2

DL-2

Dimensions for DL-1

Size 100 125 160 200 250 315 400 500 630

ФD1 98 123 158 198 248 312 397 496 626

ФD2 104 129 164 204 254 318 403 502 632

A 100 105 170

C 40 50 80

L 180 230 270 330

E 147 173 207 247 297 362 449 548 678

Dimensions for DL-2

Size 80 100 125 140 150 160 180 200 225 250 280 315 400 500 630

ФD1 78 98 123 138 148 158 178 198 223 248 278 313 398 498 628

A 105 115 125 135 140 145 155 165 175 190 205 220 295 345 410

B 55 65 75 85 90 95 105 115 125 140 155 170 215 265 330

C 40 65

L 100 130 130

■ Throttling dampers DL-1, DL-2

ApplicationThrottling damper is designed for regula-tion of air flow volume. It is constructed to fit round and spiro ducts.

DescriptionThrottling damper consists of housing and blade, both made of galvanised sheet ste-el and mechanism for altering the blade angel. All dampers can be insulated. On the outer side, DL-2 is fitted with a rubber seal.

Ordering key

DL-1 / R Size 200


B1 Actuator LM 24AB2 Actuator LM 230AB3 Actuator LM 24A SR (continuous regulation)J1 Actuator DAN 1.N (24 V)J2 Actuator DAN 2.N (230 V)J3 Actuator DMN 1.2N (24 V continuous

regulation)

1, 2 Throttling damper type

314


α°

100

125

160

200

250

315

400

500

630

1

2

3

4

6

8

10

15

v (m

/s)

10 20 50 100 200 500 20 40 100 200 400 1000 2000 4000 10000 10 20 50 100 200

15°

30°

45°

60°

75°

15°

30°

45°

60°

75°

p (Pa) p (Pa)Q (m /h)3

Dimenzije513 - 001 Dimenzije Dimenzije 400 - 630

-30

-20

-10

0

+10

+20

+30

5 10 15

v (m/s)

L2 (d

B)

α°

100

125

160

200

250

315

400

500

630

1

2

3

4

6

8

10

15

v (m

/s)

10 20 50 100 200 500 20 40 100 200 400 1000 2000 4000 10000 10 20 50 100 200

15°

30°

45°

60°

75°

15°

30°

45°

60°

75°

p (Pa) p (Pa)Q (m /h)3

Dimenzije513 - 001 Dimenzije Dimenzije 400 - 630

-30

-20

-10

0

+10

+20

+30

5 10 15

v (m/s)

L2 (d

B)

Dimensions Dimensions Dimensions

Pressure drop diagram

LWA = LNAZ + L1 + L2 (dB(A))

Sizeα° Frequency (Hz)

125 250 500 1000 2000 4000 8000

100↓

315

15 37 26 22 18 11 11 10

30 43 32 28 24 19 19 18

45 48 43 38 34 31 30 31

60 54 51 48 46 45 43 42

75 58 55 54 52 52 51 50

400↓

630

15 39 29 24 20 14 14 12

30 46 35 31 27 22 22 21

45 52 47 42 38 35 34 34

60 59 56 53 51 50 48 47

75 64 62 61 59 59 59 58

Diagram of L2 Table of L1

Size 100 125 160 200 250 315 400 500 630

L1 (dB) -2 -1 0 +1 +2 +3 +4 +5 +6

Table of LNAZ


Q (m³/h) Air flowv (m/s) Air velocity in the ductΔpcel (Pa) Pressure drop differenceLWA (dB(A)) Sound power level

315

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


L

2525

φD

BA

φD1

L CC

L

2525

φD

BA

φD1

L CC

ZL-1 ZL-2

Dimensions for ZL-1

Size 100 150 200 250 300 315 350 400 500 600 650 700

ФD 98 148 198 248 298 313 348 398 498 598 648 698

L 300 450 500 600 700 750 800

Dimensions for ZL-2

Size 80 100 125 140 150 160 180 200 225 250 280 315 400 500 630

ФD1 78 98 123 138 148 158 178 198 223 248 278 313 398 498 628

A 105 115 125 135 140 145 155 165 175 190 205 220 295 345 410

B 55 65 75 85 90 95 105 115 125 140 155 170 215 265 330

C 40 65

L 100 130 130

■ Shut-off dampers ZL-1, ZL-2

ApplicationShut-off dampers ZL-1 and ZL-2 are used to close the air supply or air exhaust in ventilating systems which require high level of sealing and very pure air. Mainly they are used in systems fitted with abso-lute filters.During the operation, filters soil, causing the pressure drop to increase. If constant air flow through the filter is to be ensured, pressure drop must be compensated. Ab-solute filters are usually constructed with the initial pressure drop ΔpZ (on a new filter) of 140 or 250 Pa. When pressure drop reaches the double value of initial pressure drop, filter is to be replaced. To compensate the pressure difference ad-just the shut-off damper to obtain the total pressure drop on the filter and damper Δpcel which equals double initial pressure drop on absolute filter.When pressure drop on the filter increa-ses, open the shut-off damper to keep the pressure Δpcel constant (2 x ΔpZ).When replacing absolute filters, ducts must be sealed tight. Shut-off dampers are produced according to DIN 1946.

DescriptionShut-off dampers consist of housing and blade, both made of galvanised sheet steel, rubber sealant brass bearings and control mechanism. Damper can be manually controlled or by the means of electric or pneumatic actuator. In case damper is manually controlled, locking mechanism is attached.On the outer side, ZL-2 is fitted with a rubber seal.

316


p

α

v

20

2 3 4 5 10 15 20

0°

0°

0°

0°

60

50

40

35

30

25

15

20

WA

p (P

a)

v (m/s)

α(°)

1

4

8

50

150

15

70

100

L (dB(A))

size 300

size 200

size 100

size 150

size 350size 400size 500

p

α

v

20

2 3 4 5 10 15 20

0°

0°

0°

0°

60

50

40

35

30

25

15

20

WA

p (P

a)

v (m/s)

α(°)

1

4

8

50

150

15

70

100

L (dB(A))

vel 300

vel 200

vel 100

vel 150

vel 350vel 400vel 500 p

α

v

20

2 3 4 5 10 15 20

0°

0°

0°

0°

60

50

40

35

30

25

15

20

WA

p (P

a)

v (m/s)

α(°)

1

4

8

50

150

15

70

100

L (dB(A))

vel 300

vel 200

vel 100

vel 150

vel 350vel 400vel 500

p

α

v

20

2 3 4 5 10 15 20

0°

0°

0°

0°

60

50

40

35

30

25

15

20

WA

p (P

a)

v (m/s)

α(°)

1

4

8

50

150

15

70

100

L (dB(A))

vel 300

vel 200

vel 100

vel 150

vel 350vel 400vel 500

Regulation types

Manual version with handle and locking mechanism

Pneumatic versionDesign determined after consulting with customer.

Version with electric actuatorBELIMO or JOVENTA electric actuators are installed (see page 333).

Recommended:• Up to size 200: actuator SM (15 Nm)• Larger dampers: actuator GM (30 Nm)

Pressure drop and sound power level diagram

Ordering key

ZL-1 / R Size 200

Note: The range of applicability of individual actuators – see table on page 333.


α ° Blade anglev (m/s) Average discharge velocityΔpcel (Pa) Pressure drop over the damperLWA (dB(A)) Sound power level


B4/J4 Actuator NM 24A / DAS 1.NB5/J5 Actuator NM 230A / DAS 2.NB6/J6 Actuator NM 24A-SR / DMS 1B7/J7 Actuator SM 24A / DA 1B8/J8 Actuator SM 230A / DA 2B9/J9 Actuator SM 24A SR (continuous regulation) /

DM 1.1P Pneumatic control

B10/J10 Actuator SM 230A SR/DM 2.21, 2 Shut-off damper type

317

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


φD1

115

47

Air flow directionOrdering example

Non-return damper: RSKSize: 200Pcs: 12

■ Non-return damper RSK

ApplicationNon-return dampers are designed for au-tomatic shut-off of ducts after ventilator is turned off. Springs are constructed in the way to cause only a negligible pressu-re drop at damper. Non-return dampers are designed for installation in round

DescriptionThey consist of housing made of galvani-sed sheet steel and blades of thin sheet aluminium. Springs from stainless steel return the flap to closed position.

Size 100 112 125 140 150 160 180 200 224 250 280 300 315 355

ФD1 99 111 124 139 149 159 179 199 223 249 279 299 314 354

318


L2 L2L1

70

ø 8

0-25

0

L2

ø 3

15-4

00

L2L1

110

L

D

D

L

L

D

L

L

≥ 2.5 D

≥ 3 D

≥ 3 D

L2 L2L1

70

ø 8

0-25

0

L2

ø 3

15-4

00

L2L1

110

L

D

D

L

L

D

L

L

≥ 2.5 D

≥ 3 D

≥ 3 D

L2 L2L1

70

ø 8

0-25

0

L2

ø 3

15-4

00

L2L1

110

L

D

D

L

L

D

L

L

≥ 2.5 D

≥ 3 D

≥ 3 D

L2 L2L1

70

ø 8

0-25

0

L2

ø 3

15-4

00

L2L1

110

L

D

D

L

L

D

L

L

≥ 2.5 D

≥ 3 D

≥ 3 D

■ Mechanical flow-rate controller MRP-1 (Circular)

DescriptionWith the circular air flow controllers with automated action, the air flow rate is controlled via an asymmetrical control flap pivoting on a smoothly running bearing, so as to provide highly sensitive response and control even with low flow rates. Manual flow rate setting is also available, by adjusting the tension of the drawing spring according to a scale denoting the desired flow rate. In selecting the controller and sizing of the ducting, the minimum air flow velocity of 2.7 m/s should be ensured.

ApplicationThese controllers are designed to control air flow rate in circular duct systems.

MaterialMechanical flow rate controllers MRP-1 are made of galvanised steel sheet. They are laser butt-welded to eliminate sharp seams both inside and outside. The joining ends are calibration pressed in conformance with DIN 24147 to provide their extreme stability and accurate fitting. Cushioned control flap: a piston damper prevents vibrations and oscillations of the control flap. On order, mechanical air flow rate controllers are also available with 25 or 50 mm acoustic or thermal insulation.

InstallationThe controller can be installed at any location of the ventilation system. Access to the ducting and the controller shall be provided in conformance with DIN 1946 T2, for the purposes of actuation and maintenance. A minimum 3xL length straight duct section shall be provided on both sides of the controller, to ensure flow stabilisation and efficient controller operation. Inlet and outlet ducting sections should be of equal diameter. The indicated refe-rence air flow velocity is approx. 4.5 m/s. Air flow velocity should be within the range of optimum flow rate. A circular rubber seal provides secure sealing, since the gap between the duct section and the joining end of the controller is thus equalised and kept constant by the weights of joining components.

Standard DesignsConstant flow air flow rate controller with tight insertion seating (joint dimension only):1. Automatic control autonomous of external energy sources,

with basic factory settings or user selected settings of referen-ce air flow rate;

2. Optional post-installation setting, by means of the setting device;

3. Maximum pressure drop across the controller 1000 Pa;4. Special controller variants available, without the setting devi-

ce, for unobtrusive installation, suitable for installation in open ducting (this design, however, does not allow flow rate setting after installation);

5. L1 = length of the insertion section, total length = L1 + 2 × L2

Examples of installation Recommended straight ducting sections L

≥ 2.5D

≥ 3D

≥ 3D

m

Mechanical flow-rate controllers

319

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES

Air flow control unitsMechanical flow-rate controllers

2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0 10,0

300

250

200

150

100

50

0

v (m/s )

p (P

a)

Nominal dimension mm Allowable air flow range m³/h Optimum air flow range m³/h Max. static pressure drop Pa

Recommended duct air velocity m/s Dimension mm

min max min max L1 L2

80 40 125 50 108 1000 ca. 2.7 to 6.0 120 40

100 70 200 75 170 1000 ca. 2.7 to 6.0 170 40

125 100 280 120 265 1000 ca. 2.7 to 6.0 170 40

140 140 400 150 330 1000 ca. 2.7 to 6.0 170 40

160 180 500 200 430 1000 ca. 2.7 to 6.0 240 40

200 250 900 300 670 1000 ca. 2.7 to 6.0 240 40

250 500 1500 480 1050 1000 ca. 2.7 to 6.0 240 40

315 600 2200 770 1900 1000 ca. 2.7 to 6.0 220 60

400 1000 3800 1240 2850 1000 ca. 2.7 to 6.0 295 60

Dimensions – air flow rate

In sizing the air ducting, one shall observe the minimum pressure drop to result in the controller response.

Diagram: static pressure drop resulting in the controller response

Ordering key

I19 Insulation 19 mmI25 Insulation 25 mmI50 Insulation 50 mm

Example: flow rate setting to 120 m³/h

1 Circular design

MRP – 1 / Q / I / Size Ф80, 100, 125, 140, 160, 200, 250, 315, 400

Calculation example

Air flow rate controller: type MRP-1Nominal length: ND 160Air flow velocity: 4.5 m³/hAir flow rate: 325 m³/hStatic pressure drop Δp in Pa, from the diagram 1: 50 Pa

320


■ Mechanical flow-rate controller MRP-2 (Rectangular)

DescriptionRectangular or square air flow controller is an autonomous control component that maintains, within a defined range, a specified constant air flow rate. The air flow rate is controlled via a control flap pivoting on bearings on both sides, a system of levers and a setting spring. The flap geometry ensures prompt response even under low pressure drops across the controller. The appropriate selection of the spring and the lever geometry lead to a defined correlation between the pressure drop and the position of the flap, thus maintaining a constant air flow rate.

ApplicationThese controllers are designed to control air flow rate in rec-tangular duct systems. Their application temperature range is -20 to +110 °C. The controller operation starts at the minimum response pressure drop, which is a function of the air flow rate (Diagram 2), and operates up to the maximum pressure drop of 1000 Pa, in a stable control range. Across this operation rate, the air flow rate deviations are limited to ±10 %. The controller cross section dimensions (width and height) should be selected equal to the ducting dimensions in order to avoid mechanical deficien-cies: excessive pressure drops and increased operation noises. Each flow rate controller is factory set to the flow rate requested by the customer. Within a certain range, the flow rate setting can be changed, by means of the setting device.

MaterialThe flow rate controller frame is made of galvanised steel sheet. The control flap is sated in special bearings made of PTFE for resistance against wear. To compensate any air flow oscillati-ons, the controller is fitted by a damper fixed to the control flap, serving to damp any frequencies arising during fast opening or closing of the control flap. In this way, resonance vibrations are avoided. The controller frame and connection parts conform to the sealing requirements for the angular components and class C components of the prEN 1751 standard.

InstallationThe controller can be easily installed in the ventilation system by means of its flange section. An important requirement is stable fixing of the ducting system, to prevent oscillations of the ducting in the flexible part during fast opening or closing of the control flap. Accor-ding to the general rules for the ventilation systems, DIN 1946 Part 2 (VDI rules for ventilation), access shall be provided to the system ducting, for the purposes of adjusting and maintenance.

Dimensions – air flow rate

Width B Height H Length L Air flow velocity m/s Max. static Dimensions mm

[mm] [mm] [mm] pressure drop Pa 500 501-502 503-511

150-330 150-200 385 3-10 1000 40 75 95

301-400 150-200 385 3-10 1000 40 95 95

200-350 201-250 420 3-10 1000 40 75 95

351-500 201-250 420 3-10 1000 40 95 95

250-400 251-300 460 3-10 1000 40 95 95

401-500 251-300 460 3-10 1000 40 95 95

501-600 251-300 460 3-10 1000 40 95 95

321

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


0,02 0,03 0,05 2,051,01,080,040,0

100

200

300

500

1000

2000

3000

5000

7000

Q (m

3 /h)

A (m2)

3 m/s10 m/s

2 3 4 5 6 7 8 9 10 11

300

250

200

150

100

50

0

v (m/s)

p (P

a)

0,02 0,03 0,05 2,051,01,080,040,0

100

200

300

500

1000

2000

3000

5000

7000

Q (m

3 /h)

A (m2)

3 m/s10 m/s

2 3 4 5 6 7 8 9 10 11

300

250

200

150

100

50

0

v (m/s)

p (P

a)

Diagram 1: fast selection of air flow rate range according to the duct cross-section

Diagram 2: static pressure drop resulting in the controller response

Calculation example

Existing system: air flow rate controller type MRP-2Width: 400 mm, height: 200 mm(duct cross.section: 0.08 m²)Parameter to be determined: air flow rate setting rangeFrom diagram 1:V (3m/s) = 865 m³/hV (10m/s) = 2880 m³/h

Calculation example

Existing system: air flow rate controller type MRP-2Width: 250 mm, height: 200 mmAir flow rate 810 m³/h (at air flow velocity 4.5 m/s)Parameter to be determined: static pressure dropΔp in PaFrom the selection diagram:Δp = 80 Pa

Ordering key

I19 insulation 19 mmI30 insulation 30 mm

Example: flow rate setting to 120 m³/h

2 Rectangular design

MRP – 2 / Q / I / Size B x H (example: 400 x 200)

322


■ Mechanical flow-rate controller MRP-3 (Circular)

DescriptionThe circular mechanical flow-rate controller provides a constant volume flow rate in ventilation and air conditioning installations. The controllers operate without an auxiliary power supply. The air flow is regulated mechanically via a regulatory panel, which is mutually bearing and through the leverage of the spring training. The setting of the desired flow can be manual or motor driven. Circular flow rate controller may also have acoustic insulation with 45 mm of mineral wool enclosed with galvanised sheet steel.

ApplicationThese controllers are designed to control air flow rate in circu-lar duct systems. Their application temperature range is -20 to 70 °C. The volume flow rate shall be maintained constant, with a deviation between ± 5 % and ± 10 % at variable pressures between 50 and 1000 Pa. External measurements of the control-ler must suit the measured channel, so as to avoid mechanical failures: pressure loss and a higher level of noise.

MaterialMechanical flow rate controllers are made of galvanised steel sheet. They are laser butt-welded to eliminate sharp seams both inside and outside. The housing of regulator and connecting pie-ces comply with the leak tightness classification B in accordance with EN 1751.

InstallationThe controller can be installed at any location of the ventilation system. Access to the ducting and the controller shall be provided in conformance with DIN 1946 T2, for the purposes of actuation and maintenance. A minimum 3xΦd length straight duct section shall be provided on both sides of the controller, to ensure flow stabilisation and efficient controller operation.

Size Vmin [m³/h]

Vmax [m³/h]

Фd [mm]

L [mm]

L1 [mm]

80 50 250 79 322 40

100 70 340 99 322 40

125 120 600 124 322 40

160 150 800 159 322 40

200 250 1300 199 352 40

250 400 2200 249 412 60

315 600 3000 314 462 60

323

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


50 100 150 200 250 280Volumen pretoka zrakaV [m³/h]

50100

200

300

400

500

600

700

800

900

1000

Pade

c sta

tične

ga tl

aka

[Pa]

P a

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a

65

40

50

55

7060

Zvočna moč L [dB(A)]WA

Zvočna moč L [dB(A)]WA Zvočna moč L [dB(A)]WA


169876543 151413121110Hitrost v [m/s]

Volumen pretoka zrakaV [m³/h]

Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]

45

35 50100

200

300

400

500

600

700

800

900

1000

35070 100 150 200 250 300 380

50

40

45

55

6065 70

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120 00600500250

100

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300

400

500

600

700

800

900

1000

400300

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60

65

7570

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150 200 300 400 500 600 700 80050

100

200

300

400

500

600

700

800

900

1000

900

4550

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Size 80 Size 100

Size 125 Size 160


50100

200

300

400

500

600

700

800

900

1000

Pade

c sta

tične

ga tl

aka

[Pa]

P a

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

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Pade

c sta

tične

ga tl

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65

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169876543 151413121110Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]

45

35 50100

200

300

400

500

600

700

800

900

1000

35070 100 150 200 250 300 380

50

40

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55

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9876543 13121110

120 00600500250

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400300

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65

7570

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150 200 300 400 500 600 700 80050

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300

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500

600

700

800

900

1000

900

4550

55

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Size 80 Size 100

Size 125 Size 160


50100

200

300

400

500

600

700

800

900

1000

Pade

c sta

tične

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aka

[Pa]

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Pade

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tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a

65

40

50

55

7060




169876543 151413121110Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]

45

35 50100

200

300

400

500

600

700

800

900

1000

35070 100 150 200 250 300 380

50

40

45

55

6065 70

9876543 13121110

120 00600500250

100

200

300

400

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700

800

900

1000

400300

45

50

55

60

65

7570

9876543 13121110

150 200 300 400 500 600 700 80050

100

200

300

400

500

600

700

800

900

1000

900

4550

55

60

65

7570

9876543 121110

Size 80 Size 100

Size 125 Size 160


50100

200

300

400

500

600

700

800

900

1000

Pade

c sta

tične

ga tl

aka

[Pa]

P a

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a

65

40

50

55

7060




169876543 151413121110Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]

45

35 50100

200

300

400

500

600

700

800

900

1000

35070 100 150 200 250 300 380

50

40

45

55

6065 70

9876543 13121110

120 00600500250

100

200

300

400

500

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700

800

900

1000

400300

45

50

55

60

65

7570

9876543 13121110

150 200 300 400 500 600 700 80050

100

200

300

400

500

600

700

800

900

1000

900

4550

55

60

65

7570

9876543 121110

Size 80 Size 100

Size 125 Size 160

Stat

ic pr

essu

re d

rop

Volume flow rateVolume flow rate

Volume flow rate

Flow velocityFlow velocity

Sound power levelSound power level

Flow velocity Flow velocity

Volume flow rate

Stat

ic pr

essu

re d

rop

Stat

ic pr

essu

re d

rop

Stat

ic pr

essu

re d

rop

Sound power levelSound power level

Size 80 Size 100

Size 125 Size 160

Sound power level in the connecting duct (flow noise)

324


25050

100

200

300

400

500

600

700

800

900

1000

300 800400 600 1000 1200 400 1000 1600 1800 21001300

4550

55

65

60

7570

9876543 1110

0041002100800650

100

200

300

400

500

600

700

800

900

1000

75

65

50

60

55

70

9876543 1210 11

600 00620022000150

100

200

300

400

500

600

700

800

900

1000

3100800 1400 1800

50

55

60

65

70

75

9876543 10 11

45

Size 200 Size 250

Size 315

63 125 250 500 1000 2000 4000 8000Frekvenčni spekter [Hz]

Rela

tivni

nivo

zvoč

ne m

oči

L [dB

]

-15

-10

-5

0

3

6

129

15

Hitrost v [m/s]

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]




25050

100

200

300

400

500

600

700

800

900

1000

300 800400 600 1000 1200 400 1000 1600 1800 21001300

4550

55

65

60

7570

9876543 1110

0041002100800650

100

200

300

400

500

600

700

800

900

1000

75

65

50

60

55

70

9876543 1210 11

600 00620022000150

100

200

300

400

500

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700

800

900

1000

3100800 1400 1800

50

55

60

65

70

75

9876543 10 11

45

Size 200 Size 250

Size 315


Rela

tivni

nivo

zvoč

ne m

oči

L [dB

]

-15

-10

-5

0

3

6

129

15

Hitrost v [m/s]

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]




25050

100

200

300

400

500

600

700

800

900

1000

300 800400 600 1000 1200 400 1000 1600 1800 21001300

4550

55

65

60

7570

9876543 1110

0041002100800650

100

200

300

400

500

600

700

800

900

1000

75

65

50

60

55

70

9876543 1210 11

600 00620022000150

100

200

300

400

500

600

700

800

900

1000

3100800 1400 1800

50

55

60

65

70

75

9876543 10 11

45

Size 200 Size 250

Size 315


Rela

tivni

nivo

zvoč

ne m

oči

L [dB

]

-15

-10

-5

0

3

6

129

15

Hitrost v [m/s]

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]




Volume flow rate

Volume flow rate Volume flow rate

Flow velocityFlow velocity

Sound power level

Flow velocity

Stat

ic pr

essu

re d

rop

Stat

ic pr

essu

re d

rop

Stat

ic pr

essu

re d

rop

Sound power level

Sound power level

Size 200 Size 250

Out of throw area

Size 315

325

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


25050

100

200

300

400

500

600

700

800

900

1000

300 800400 600 1000 1200 400 1000 1600 1800 21001300

4550

55

65

60

7570

9876543 1110

0041002100800650

100

200

300

400

500

600

700

800

900

1000

75

65

50

60

55

70

9876543 1210 11

600 00620022000150

100

200

300

400

500

600

700

800

900

1000

3100800 1400 1800

50

55

60

65

70

75

9876543 10 11

45

Size 200 Size 250

Size 315


Rela

tivni

nivo

zvoč

ne m

oči

L [dB

]

-15

-10

-5

0

3

6

129

15

Hitrost v [m/s]

Pade

c sta

tične

ga tl

aka

[Pa]

P aPa

dec s

tatič

nega

tlak

a[P

a]P a

Pade

c sta

tične

ga tl

aka

[Pa]

P a


Hitrost v [m/s]


Hitrost v [m/s]


Hitrost v [m/s]




Rela

tive

soun

d po

wer l

evel

Flow velocity

Octave mid-frequency

Relative sound power level ΔL [dB]Average values for all size and pressure drops.


V (m³/h) Volume flow ratev (m/s) Flow velocity in the incoming cross-sectionΔps (Pa) Static pressure dropLwa (dB(A)) A-weighted sound power levelLw-oct (dB) Octave sound power level

Lw-oct = Lwa + ΔLΔL (dB) Relative sound power level LWA

f (Hz) Octave mid-frequency

Sound power LW-Oct for the octave mid-frequencies

f [Hz] 63 125 250 500 1000 2000 4000 8000

LWA [dB(A)] 70 70 70 70 70 70 70 70

ΔL8.5 [m/s] [dB] -7 -6 -7 -7 -7 -6 -7 -12

LW-Oct [dB] 63 64 63 63 63 64 63 58

Technical data for actuators:

B2 B1 B3

Connection voltage 230 V˜ 24 V ∞= 24 V ∞=

Operating range 85 to 265V 19.2 to 28.8V 19.2 do 28.8V

Run time for 90° 150 s 150 s 150 s

Input power supply ≤6 VA ≤4 VA ≤4 VA

Energy consumption ≤2.5 W ≤2 W ≤2 W

Degree of protection IP 54 IP 54 IP 54

Connection cable 0.75 mm²

approx. 1 m 3 core

approx. 1 m 3 core

approx. 1 m 4 core

Ambient temperature -30 to + 50 °C -30 to + 50 °C -30 to + 50 °C

Example

Specified:

Size: 250Volume flow rate: V = 1500 [m³/h] Static pressure drop: ΔpS = 435 [Pa]

Result:

Sound power level: LWA= 70 [dB(A)]

326


Krmilni signal

Povratni signal

Krmilni signal

Povratni signal

Krmilni signal

Povratni signal

Ordering key

B1 24V ON-OFFB2 230V ON-OFFB3 24V continuous

I19 Insulation 19 mmI45 Insulation 19 mm

Size Ф80 / 100 / 125 / 160 / 200 / 250 / 315

Q Flow rate3 Circular design

MRP-3/Q/Ф/I/B1

Motor B1

Wiring diagrams

Motor B2

1 wire control

Adjusting voltageStatus voltage

2 wire control

Motor B3

Continuous

1 wire control 2 wire control

AC 24 VDC 24 V

327

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES



■ Mechanical flow-rate controller MRP-4 (Square)

DescriptionThe rectangular mechanical flow rate controller provides a con-stant volume flow rate in ventilation and air conditioning installa-tions. The controllers operate without an auxiliary power supply. The air flow is regulated mechanically via a regulatory panel, which is mutually bearing and through the leverage of the spring training. The setting of the desired flow can be manual or motor driven. Rectangular flow rate controller may also have acoustic insulation with 40 mm of mineral wool enclosed with galvanised sheet steel.

ApplicationThese controllers are designed to control air flow rate in circular duct systems.Their application temperature range is -20 to 70 °C. The volume flow rate shall be maintained constant, with a de-viation between ± 5 % and ± 10 % at variable pressures between 50 and 1000 Pa. External measurements of the controller must suit the measured channel, so as to avoid mechanical failures: pressure loss and a higher level of noise.

MaterialMechanical flow rate controllers is made of galvanised steel she-et. The housing of regulator and connecting parts comply with the leak tightness classification B in accordance with EN 1751.

InstallationThe controller can be easily installed in the ventilation system by means of its flange section. An important requirement is stable fixing of the ducting system, to prevent oscillations of the ducting in the flexible part during fast opening or closing of the control flap.

Widht B Height H Lenght L Air flow volume

(mm) (mm) (mm) Vmin (m³/h) Vmax (m³/h)

200

100 300 200 800

150 325 250 1200

200 425 350 1550

300

100 300 250 1200

150 325 350 1650

200 350 500 2100

250 450 600 2800

300 500 750 3500

400

200 375 700 3300

250 450 800 3700

300 500 1000 4250

500

200 375 875 4125

250 400 1000 4375

300 500 1200 5200

600

200 350 1125 4750

250 500 1400 6000

300 500 1600 7000

328


329

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES

100

150

200

250

300

]m

m[H

Višin

a

35

40

45

50

0

5

10

15

20

25

30

40

45

Zvoč

na m

očZv

očna

moč

])A(

Bd[

L2A

W])

A(B

d[L

1AW

širina

B =300

[mm]

200

400500 600

2

v = 3 [m/s]A

4

6

8

10

12

200

300

400 500 600800

]h/³m[0001=V

1500

2000

2500

75

100

150

200

250

400

300

500

1000

3000

4000

5000

6000

7000

700

p = 50 [Pa]S

35

-15

63 125 250 500 1000 2000 4000

Frekvenčni spekter [Hz]

+5

-10

12

8000

+10

0

-20

-5

4

8

1012

4

6

2

8

Rela

tivni

nivo

zvoč

ne m

oči

]B

d[L

vA = 2 [m/s]

6

Example

Specified:

Width B 400 mmHeight H 250 mmVolume flow rate V = 1500 (m³/h) Flow velocity Va = 4.2 (m/s)Static pressure drop ΔpS = 250 (Pa)

Result:

Sound power level: LWA1= 38 (dB(A))LWA2= 24 (dB(A))LWA= 62 (dB(A))

Sound power level outside the connecting duct (noise radiation)

Soun

d po

wer

Soun

d po

wer

Heig

ht

Width

330


100

150

200

250

300

]m

m[H

Višin

a

35

40

45

50

0

5

10

15

20

25

30

40

45

Zvoč

na m

očZv

očna

moč

])A(

Bd[

L2A

W])

A(B

d[L

1AW

širina

B =300

[mm]

200

400500 600

2

v = 3 [m/s]A

4

6

8

10

12

200

300

400 500 600800

]h/³m[0001=V

1500

2000

2500

75

100

150

200

250

400

300

500

1000

3000

4000

5000

6000

7000

700

p = 50 [Pa]S

35

-15

63 125 250 500 1000 2000 4000

Frekvenčni spekter [Hz]

+5

-10

12

8000

+10

0

-20

-5

4

8

1012

4

6

2

8

Rela

tivni

nivo

zvoč

ne m

oči

]B

d[L

vA = 2 [m/s]

6

Rela

tive

soun

d po

wer l

evel

Octave mid- frequency

Definition of Symbols

V (m³/h) Volume flow rateA (m²) Incoming cross-section BxHvA (m/s) Flow velocity in AΔps (Pa) Static pressure dropLwa (dB(A)) A-weighted sound power level

Lwa = Lwa1 + Lwa2

Lw-oct (dB) Octave sound power levelLw-oct = Lwa + ΔL

ΔL (dB) Relative sound power level to LWA

Sound power LW-Oct for the octave mid-frequencies

[Hz] 63 125 250 500 1000 2000 4000

LWA [dB(A)] 62 62 62 62 62 62 62

ΔL4.2 [m/s] [dB] 0 2 2 -4 -7 -8 -9

LW-Oct [dB] 62 64 64 58 55 54 53

Technical data for actuators

B2 B1 B3

Connection voltage 230 V˜ 24 V ∞= 24 V ∞=

Operating range 85 to 265V 19.2 to 28.8V 19.2 to 28.8V

Run time for 90° 150 s 150 s 150 s

Input power supply ≤6 VA ≤4 VA ≤4 VA

Energy consumption ≤2.5 W ≤2 W ≤2 W

Degree of protection IP 54 IP 54 IP 54

Connection cable 0.75 mm² approx. 1 m 3 core

approx. 1 m 3 core

approx. 1 m 4 core

Ambient temperature -30 to + 50 °C -30 to + 50 °C -30 to + 50 °C

Relative sound power level ΔL (dB)Average values for all sizes and pressure drops

331

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES


Krmilni signal

Povratni signal

Krmilni signal

Povratni signal

Krmilni signal

Povratni signal

Wiring diagram

Ordering key

B1 24V ON-OFFB2 230V ON-OFFB3 24V continuous

I19 Insulation 19 mmI45 Insulation 45 mm

Size

Q Flow rate

4 Square design

MRP-4/Q/BxH/I/B1

Actuator B1 Actuator B2

1 wire control 2 wire control 1 wire control 2 wire control

Adjusting voltageStatus voltage

AC 24 VDC 24 V

Actuator B3

Continuous

332


CODEHidria

Catalogue

MOTORBELIMO, JOVENTA

TORQUENm

RŽ-2(H1)

RŽ-1, 3, 7(H1)

ZL-1, 2(D)

DL, DL-1, DL-2

B1J1

LM24ADAN 1.N

5 200-400 100-500 all dimensions

B2J2

LM230ADAN 2.N


B3J3

LM 24A SRDMN 1.2N


B4J4

NM 24ADAS 1.N

10 500-700 600-1000 100-250

B5J5

NM 230ADAS 2.N

10 500-700 600-1000 100-250

B6J6

NM 24A-SRDMS 1

10 500-700 600-1000 100-250

B7J7

SM 24ADA 1

20 800-1250 1100-2000 300-710

B8J8

SM 230ADA 2

20 800-1250 1100-2000 300-710

B9J9

SM 24A SRDM 1.1

20 800-1250 1100-2000 300-710

B10J10

SM 230A SRDM 2.2

20 800-1250 1100-2000 300-710

B11J11

GM 24ADAG 1

40 1300-1600

B12J12

GM 230ADAG 2

40 1300-1600

B13J13

GM 24A SRDMG 1.1

40 1300-1600

Type LM

Type DA

Type SM

Type DMN

■ Motor actuators

AplicationIn the variants of products with motor actuators, the motor actuators of the BELIMO or JOVENTA producer are used. Upon the request of the buyer, products can also be adapted to motor actuators of other producers.

It can be chosen from• Motors of various powers• Connection voltage of 24 V or 220 V• ON/OFF regulation or continuous

regulation (SR)

Motor actuators Belimo and Joventa

The right for technical changes reserved.

333

VEN

TILA

TIN

G G

RIL

LES,

VE

NTI

LATI

NG

VAL

VES

CIR

CULA

R D

IFFU

SER

S,

SQU

ARE

DIF

FUSE

RS

SWIR

L DI

FFUS

ERS,

VA

RIAB

LE S

WIR

L DI

FFUS

ERS

SLO

T D

IFFU

SER

S,

RO

UN

D D

UCT

DIF

FUSE

RS

AIR

DIS

PLAC

EMEN

T U

NIT

SSU

PPLY

AIR

NO

ZZLE

SEX

TER

NAL

ELE

MEN

TSAI

R F

LOW

CO

NTR

OL

UN

ITS

SOU

ND

ATT

ENU

ATO

RS,

SO

UN

D A

TTEN

UAT

ING

LO

UVR

ES

Air flow control unitsMotor actuators Belimo and Joventa

Documents

Air Flow Control