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Wilo SCP Split Case Base Mounted Pumps
Horizontal Split Case, Double Suction, Single and Two Stage Pumps – March, 2013Marcos D. Roimicher, Product Manager BS Market Segment, Product Management Department
120-04-003-0413
2
Agenda
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
1. Features and Benefits
2. General Technical Specifications
3. Model Number Designation
4. Family Curves
5. Detailed Technical Features / Construction Details / Features and Benefits
6. Markets and Applications
7. Options
3
Features and Benefits
Horizontal Split Case, Double Suction Design
• Simple access to rotating assembly
• Hydraulically balanced
• Highest efficiency of any pump type in Wilo product line
WILO Brain “Easy Read” Model Numbering System
• References flange size and max impeller size in standard North American units
Uses Baldor NEMA Frame Foot Mount Motors (other Manufacturers are OK)
• All voltages and enclosures available
• Various efficiency types and VFD-ready
• Do not need to be Inverter Duty
• Optional Aegis Ring motors available
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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Features and Benefits
Excellent Delivery Times – 4-6 weeks
• Common pump ends and motors stocked in Thomasville, Georgia
¼” Pressure Gauge Tappings Standard
• Suction and discharge
• Maybe be supplied with BSP to NPT adapters
Excellent Commercial Pump Warranty
• 24 months from date of purchase
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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General Technical Specifications
Size Range – Flange Size
• 2” to 20”
• 48 Models @ 4 Pole (1800 RPM), 6 Models @ 6 Pole (1200 RPM)
Horsepower Range
• 1 ½ to 500 HP
Performance
• Flow range from 88 - 15,400 US GPM
• Heads from 43 - 700’ TDH
Pressure Ranges
• Maximum working pressure: standard construction – 230 psi with standard mechanical seal limitations
• Maximum working pressure: optional construction (with 250 # Flange Drilling) – 400 psi
• Maximum inlet pressure: 150 PSI mechanical seal or 75 PSI gland packed
• Hydrostatic test pressure: 1.5 times working pressure
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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General Technical Specifications
Temperature Range for HVAC applications
• + 18°F to +250°F (-8°C to +120°C)
Approved Liquids
• Water-glycol mixtures - for 20-40% glycol and fluid temperature ≤104°F (40°C)
Standard Construction Material Specification
• Cast iron, bronze fitted, mechanical seal type
Noise and Vibration Levels to Hydronic Institute Standards
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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Model Number Designation
SCP
• Split Case, Base Mounted, Double Suction Pump
• Additional configurations available
4 Suction (Inlet) Size in Inches
• 125# ANSI raised face standard (150# same as 125#)
• 250# ANSI raised face optional (300# same as 250#)
3 Discharge (Outlet) Size in Inches
8 Maximum Impeller Diameter in Inches
HA Hydraulic Type – HA, HB, DS, HS, DV Types
Materials Code (
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
SCP 4 x 3 x 8 - HA
Note: Complete units include motor HP, motor enclosure, # poles (RPM), frame size, phase and voltage
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Model Number Designation
HA Hydraulic Type – HA, HB, DS, HS, DV Types Mate
• HA – stands for Hydraulic Design A
• HB – stands for Hydraulic Design B
• DS – stands for Dual Stage, (2) impeller design
• HS – stands for impeller one side suction but it is like an NL (end suction) with balancing holes and have two neck ring diameters to accommodate wear rings or neck rings
• DV – stands for Double Volute [(2) passages in delivery of SCP, partition in delivery branch]
e (
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
SCP 4 x 3 x 8 - HA
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Detailed Technical Features
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Single Stage Pump with Mechanical Seal
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Detailed Technical Features
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Two-Stage Pump with Mechanical Seal
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Detailed Technical Features
• Materials of Construction – Casing, Impeller, Shaft, Neck Rings, Shaft Sleeves
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Component Version C0
Casing Cast iron A 48 CLASS 35 EN-GJL-250
Impeller Cast iron A 48 CLASS 35 EN-GJL-250
Shaft Stainless steel A 276 Type 410 X12cr13
Neck ring Bronze B 584 C93 700 G-CuPb 10 Sn
Shaft sleeve Stainless steel A 276 Type 410 X12cr13
Component Version C1 (Standard Construction)
Casing Cast iron A 48 CLASS 35 EN-GJL-250
Impeller Bronze B 584 C83 600 G- CuSn5 ZnPb
Shaft Stainless steel A 276 Type 410 X12cr13
Neck ring Bronze B 584 C93 700 G-CuPb 10 Sn
Shaft sleeve Stainless steel A 276 Type 410 X12cr13
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Detailed Technical Features
• Materials of Construction - Casing, Impeller, Shaft, Neck Rings, Shaft Sleeves
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Component Version C2
Casing Ni-resist cast iron BS 3468 Gr 2 DIN 1694 GGL-NiCr 20 2
Impeller Bronze B 584 C83 600 G- CuSn5 ZnPb
Shaft Stainless steel BS 970 316 S16DIN 17006
X5CrNiMo1810
Neck ring Bronze B 584 C93 700 G-CuPb 10 Sn
Shaft sleeve Stainless steel A 276 Type 410 X12cr13
Component Version C3
Casing Stainless steel BS 3100 316 C16DIN17445
X6CrNiMo1810
Impeller Stainless steel BS 3100 316 C16DIN17445
X6CrNiMo1810
Shaft Stainless steel BS 970 316 S16DIN 17006
X5CrNiMo1810
Neck ring Stainless steelASTM A743 Gr CF-8M
A182-F316H
Shaft sleeve Stainless steel ASTM A276 Type 316SS
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Detailed Technical Features
• Materials of Construction - Casing, Impeller, Shaft, Neck Rings, Shaft Sleeves
• General Material of Construction:
• Standard materials – cast iron / bronze / carbon steel
• Material variants – ductile iron / cast steel / stainless and alloy steels
• Special materials – duplex stainless steel and austenitic irons
• Custom bottom suction or centerline suspension
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Component Version C4
Casing Ductile iron BS 2789 500.7 DIN 1693 GGG50
Impeller Bronze BS 1400 LG2 DIN 1716 G-CuPb 15 Sn
Shaft Stainless steel A 276 Type 410 X12cr13
Neck ring Bronze B 584 C93 700 G-CuPb 10 Sn
Shaft sleeve Stainless steel A 276 Type 410 X12cr13
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Detailed Technical Features
Materials of Construction – Mechanical Seals
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
CodeSeal Combinations
Face CombinationsFriction faces Joints / O-ring Code DIN 24960
E0 Carbon/ceramic EPDM A V E G G
E1 Carbon/carbide SIC EPDM A Q1 E G G
E2 Carbide SIC/ Carbide SIC EPDM Q1 Q1 E G G
E3 Carbon / Carbide Tungsten. EPDM A U E G G
EA Carbon/carbide SIC ACS EPDM A Q1 E G G
V0 Carbon/ceramic VITON A V V G G
V1 Carbon/carbide SIC VITON A Q1 V G G
V2 Carbide SIC/ Carbide SIC VITON Q1 Q1 V G G
V3 Carbon / Carbide Tungt. VITON A U V G G
P0 Packing Gland : Graphite impregnated
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Detailed Technical Features
Painting
• 2-part epoxy paint as per internal standards
• Primer: Red Oxide Zinc Coated ~ 40 microns thick
• Final top coat: Enamel paint ~ 40 microns thick - “Wilo green” (Pantone 334) as standard
• Customized paint available upon request, will require longer lead time and extra cost
Construction Features
• Short shaft sleeve design
• Monobloc design – bearing support in the lower casing = easier to service
• Pressure rating (standard construction) 150 PSI, hydrostatically tested to 1.5 times (225 psi) per Hydraulic Institute Standards
• Eye bolt for lifting
• Oversized permanently lubricated (sealed-ZZ) radial ball bearings
• Improved lubrication and cooling of mechanical seal through seal flush lines
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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Detailed Technical Features
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Short shaft sleeve
Nut
Keyed Impeller
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Detailed Technical Features
Features and Benefits
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Easy maintenance• Horizontal Split Case concept:
o The top casing can be removed, in order to have direct access to the rotating components
o Reduced maintenance downtime
Material Information• Casing:
o Standard construction in Cast Iron ASTM A48, Class 40 (EN GJL 250)
o Alternative materials available on request (Bronze, Stainless Steel, etc)
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Detailed Technical Features
Features and Benefits
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Easy maintenance• Tongue & groove wear rings:
o To guarantee correct location on reassembly
o To avoid wear on the casing
o Longer seal lifeMaterial Information• Wear rings:
o Standard construction in Bronze
o Alternate materials available on request
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Detailed Technical Features
Features and Benefits
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
More reliable• Double suction concept:
o The impellers are hydraulically balanced so the axial thrust is minimized
o To minimize the NPSHr (ΣFaxial = 0)
o More reliableMaterial Information• Impeller:
o Standard construction in Bronze
o Alternate materials available on request
(ΣFaxial = 0) (ΣFaxial = 0)
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Detailed Technical Features
Features and Benefits
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Extended Life• Simply supported impeller
design concept:o To reduce shaft
deflectiono To minimize vibrationo To reduce radial loadso Bearings can also be
removed without disturbing top of casing
o Longer bearings and seal life
Material Information• Shaft:
o Standard construction in Stainless Steel
o Alternate materials available on request
Fradial Fradial
Fimpeller
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Detailed Technical Features
Features and Benefits
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Extended Life• Seal flush lines:
o To avoid premature wear of the mechanical seals
o Cyclone separators are an available option for abrasive fluids
o Longer seal lifeMaterial Information• Seal flush lines:
o Standard construction in Stainless Steel
o Alternate materials available on request
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Detailed Technical Features
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Tongue & groove neck ring design eliminates axial displacement and seizure of rotating assembly
Impeller double suction (hydraulically balanced), minimizes axial thrust
Internal flush with seal water insures maximum seal life (SS tubing for Long Life)
Double lock nut and keyarrangement ensuresreverse rotation of shaft sleeve
Permanently Lubricated (“sealed for life”-ZZ) radial ball bearings
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Industry
Markets and Applications
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
Building Services Main applications :
Air conditioning
Heating
Boosting
Main Sales Area : • World Wide
Main applications :
Cooling
Heating
Water transfer on process applications
Main Sales Area : World Wide
Municipal Main applications :
Water intake
Transportation
Distribution
Main Sales Area :• World Wide
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Options
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
NUMBER OF STAGES
Single StageMultistage
POSITION OF SHAFT
Horizontal Pump
Direct Motor Mounting (standard flexible coupling) Using Extention ShaftingDouble extended - one end of pump coupled to motor, other end coupled to an engine
IMPELLER DESIGN
Single SuctionDouble Suction
LUBRICATION
Grease Lubrication with Antifriction BrgsOil Lubrication with Antifriction BrgsOil Lubrication with Journal Brgs.
Based On Shaft Sealing
Gland SealingMechanical Sealing
DRIVE
• a) Motorb) Motor VFD
Compatible• Engine
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Options
Cyclone Sediment Separator
• Provides clean, abrasive-free injection flow for flushing the surfaces of the mechanical shaft seal (longer lead time and extra cost)
• John Crane – model 100 (nylon), 1/2” NPT
April 2013Wilo SCP split Case Base Mounted Pumps – Marcos D. Roimicher
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