Hydraulic Match
- Flow Q
- Head H
- Speed
- Impeller / curve review
- NPSHr review
SPLIT-CASE PUMP & REPLACEMENT SOLUTIONS
Horizontal Split Case Pumps & Engineered Replacement Solutions
S-Series single-stage, double-suction, axially split pumps for high-flow water and industrial services — supplied for new installations and engineered replacement of installed KSB Omega / Omega V and other split-case pump configurations.
For replacement projects, we verify the installed model, duty point, GA drawing and mechanical interfaces before confirming dimensional fit.
DN 80–800
Discharge size11,600 m³/h
Flow up to200 m
Head up to25 bar
Working pressure
Verified catalog constructionSplit casing • double-suction impeller • SKF / NSK bearing options • mechanical seal or packing
Engineering Verification
Replacement Fit Verified Before Order
Interchangeability is confirmed against the installed pump model, duty point, GA drawing and mechanical interfaces before order confirmation.
Installation Match
- Suction/discharge flange
- Pressure rating
- Nozzle centerline
- Orientation
Mechanical Match
- Shaft height
- Coupling
- Baseplate
- Foundation / bolt pattern
Service Match
- Liquid
- Temperature
- Materials
- Seal arrangement
Verified configuration → dimensional replacement confirmed before order.
Project Route
What Are You Replacing or Selecting?
New Split-Case Pump
New installation or known duty point requiring a split-case pump selection.
Select New PumpKSB Omega / Omega V Replacement
Existing Omega installation requiring hydraulic and dimensional replacement review.
Check Omega ReplacementSulzer ZPP Replacement
Complete pump or replacement engineering for an installed ZPP configuration.
View ZPP ReplacementOther Installed Split-Case Pump
Send the installed brand/model, nameplate or GA for an engineering replacement review.
Send Nameplate / GAEngineering Selection
Find Your S-Series Split-Case Pump
Search by S-Series model or start from the required duty point. Final configuration is confirmed against the size-specific performance data and project engineering requirements.
45 models
Verified S-series model list (45 models)
- S 80-210
- S 80-270
- S 80-370
- S 100-250
- S 100-310
- S 100-375
- S 125-230
- S 125-290
- S 125-365
- S 125-500
- S 150-290
- S 150-360
- S 150-460
- S 150-605
- S 200-320
- S 200-420
- S 200-520
- S 200-670
- S 250-370
- S 250-480
- S 250-600
- S 300-300
- S 300-435
- S 300-560
- S 350-360
- S 350-430
- S 350-510
- S 350-700
- S 400-540
- S 400-620
- S 500-510
- S 500-640
- S 500-700
- S 500-790
- S 500-890
- S 600-540
- S 600-620
- S 600-710
- S 600-830
- S 700-590
- S 700-710
- S 700-820
- S 800-740
- S 800-840
- S 800-970
Select a model to preview
Live RFQ binding–Flow Q (m³/h)
–Head H (m)
–Speed (rpm)
–Efficiency (%)
–Outlet DN from model designation
–Impeller diameter / model code
Selected catalog reference points are shown where verified. Other models carry only their model designation into the RFQ.
Can't find your model?
Send the model you searched for plus your duty point. The RFQ can carry the search term automatically.
Request Custom SelectionInstalled Pump Replacement
Replacing an Installed KSB Omega / Omega V?
Send the installed model, nameplate, duty point and available GA information. We review the hydraulic duty and installation interfaces before confirming the replacement configuration.
- Installed Pump
- Model / Nameplate / GA
- Hydraulic Review
- Interface Verification
- Confirmed Replacement Configuration
What We Verify
- Installed model
- Q / H
- Speed
- Suction/discharge flange
- Flange rating/drilling
- Nozzle centerline
- Shaft height
- Rotation
- Coupling
- Baseplate footprint
- Anchor-bolt positions
- Materials
- Seal arrangement
Where the installed configuration is verified as a direct match, we can supply a 100% dimensional replacement.
Where an interface differs, the engineering review and quotation will identify the difference and define any required transition baseplate, spool arrangement or other adaptation before production.
Start Omega Replacement ReviewPump Construction
Three structural features of the S-series split-case pump
Use the approved model drawing and datasheet to confirm the final construction for each project.
01
Double-suction impeller
Liquid enters the impeller from both sides, helping balance axial hydraulic force and support high-flow service. Confirm the final duty point against the approved performance curve.
02
Horizontally split casing
The upper casing can be removed for inspection of the rotor and impeller while the main suction and discharge piping remains connected, subject to installation access.
03
Bearing and shaft-seal arrangements
Bearing options and mechanical seal or packing arrangements are selected for the service. Confirm the final arrangement on the project datasheet and order documents.
Material Schedule
Materials & Wetted Components
Material selection must be verified against the actual liquid, temperature, corrosion conditions and project specification. ASTM / EN equivalence requires engineering confirmation.
| Component | Catalog material | GB grade | Engineering action |
|---|---|---|---|
| Pump casing | Grey Cast Iron / Ductile Iron / Cast Steel | HT250 / QT400-18 / ZG230-450 | |
Pump casing material review Choose only from the catalog-supported casing materials below. Service suitability for seawater or strongly corrosive liquids requires engineering confirmation. | |||
| Impeller | Bronze / Grey Cast Iron / Silicon Brass / Stainless Steel | ZCuSn10Pb1 / HT250 / ZCuZn16Si4 / ZG1Cr18Ni9Ti | |
Impeller material review Select a catalog-listed impeller material. Corrosion suitability must be confirmed against the actual pumped liquid and temperature. | |||
| Shaft | Stainless Steel / Carbon Steel | 2Cr13 / 45# | |
Shaft material review Select from the two shaft materials explicitly listed in the approved product information. | |||
| Casing seal ring | Bronze / Grey Cast Iron / Silicon Brass / Stainless Steel | ZCuSn10Pb1 / HT250 / ZCuZn16Si4 / ZG1Cr18Ni9Ti | |
Casing seal ring material review Select a catalog-listed seal-ring material and confirm the final metallurgy during engineering review. | |||
Select a material row to review the available catalog grade and carry the requirement into an engineering RFQ.
Applications
Typical Split-Case Pump Applications
Cooling Water
HVAC & District Cooling
Municipal Water
Power Plant Circulation
Irrigation & Drainage
Industrial Water Transfer
Engineering Selection
Not Sure Which Model Fits Your Duty?
Start with flow, head, liquid, temperature, speed and installation constraints before selecting a model.
Engineering RFQ
Request Split-Case Pump Selection or Replacement Review
Send a duty point, model, nameplate photo or drawing. A nameplate photo is enough to start the replacement review; GA details can be checked during engineering follow-up.
Choose the project mode, describe the requirement and attach any available nameplate, drawing or specification.
FAQ
Split-Case Replacement Questions
Can you replace an existing KSB Omega pump?
Yes. We review the installed Omega / Omega V model, duty point and mechanical interfaces before confirming the replacement configuration.
Is every S-Series pump dimensionally interchangeable with KSB Omega?
No blanket interchangeability should be assumed. Direct fit is confirmed against the installed model, GA drawing and interface dimensions.
Can I reuse my existing motor and coupling?
Potentially. Shaft height, coupling spacing, motor arrangement and baseplate interfaces must be verified first.
What information should I send?
Existing brand/model, nameplate photo, flow, head, speed and GA drawing if available.
Can you review a split-case pump from another manufacturer?
Yes. Submit the installed pump information for an engineering review. The achievable replacement scope depends on the available hydraulic and dimensional data.
Selection added to RFQ