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Illustration of QS double-suction split-case pumps

Double-Suction Split-Case Pump

Double-Suction Split-Case Pump

Double-suction pumping for large water flows.

A double-suction split-case pump for large-flow clean-water duties in industrial, municipal, power, irrigation and waterworks projects.

Related resources: Water supply and irrigation requirements

Installation
Horizontal split-case arrangement
Wet end
Wetted materials selected for the liquid and temperature
Sealing
Model-specific shaft sealing
Drive
Motor and coupling
Models & specifications Request a quote
Open original source PDF ↗

models

Double-Suction Split-Case Pump models & specifications

Check model references against the original performance table, speed, materials and operating conditions.

Original catalogue model references; open source for performance data
Model referenceCatalogue scopeSpecificationsEnquiry
150QS-78Original catalogue referenceSource PDF ↗
150QS-78AOriginal catalogue referenceSource PDF ↗
150QS-50Original catalogue referenceSource PDF ↗
150QS-50AOriginal catalogue referenceSource PDF ↗
200QS-95Original catalogue referenceSource PDF ↗
200QS-95AOriginal catalogue referenceSource PDF ↗
200QS-63Original catalogue referenceSource PDF ↗
200QS-63AOriginal catalogue referenceSource PDF ↗
Showing 1–8 of 94

Original technical pages

Use the original model table with its stated speed, impeller and units. A catalogue range does not guarantee a combined operating point.

overview

Double-Suction Split-Case Pump construction and operation

Double-Suction Split-Case Pump: illustrative pump assembly and construction

Single-stage double-suction split-case pump

The impeller transfers energy to the liquid through the pump casing. Final selection depends on the model curve, liquid properties, sealing arrangement, drive and piping conditions.

A double-suction split-case pump for large-flow clean-water duties in industrial, municipal, power, irrigation and waterworks projects.

  • Single-stage double-suction impeller
  • Horizontal split casing provides access to internal components
  • Clean-water intake, supply, irrigation and circulation duties

AI-generated family illustrations. The selected configuration follows the agreed model and drawing.

construction

Components, materials and seals

Split-case pump impeller

Double-suction impeller

Water enters both sides of the impeller. Use the model curve to check the required delivery.

Split-case pump casing component

Split casing

The horizontal casing split provides access to internal components for inspection and maintenance.

Split-case pump mechanical seal

Sealing & sleeves

Check the shaft-seal arrangement, sleeve condition and any required seal-water connections.

Split-case pump bearing housing

Rotor & bearings

Allow access at both ends of the rotor and clearance above the casing for service.

Open original technical reference · PDF page 18 ↗

Open original technical reference · PDF page 18 ↗

Open original technical reference · PDF page 5 ↗

duty requirements

Materials, sealing & duty requirements

Double-Suction Split-Case Pump: illustrative wetted materials and sealing components

Review medium name and composition, required flow, total head, operating temperature, suction conditions, installation arrangement, power supply and drive method, materials, standards and inspection requirements, required supply scope together with the liquid composition, temperature and installation. The values on a catalogue page are not a substitute for checking the selected model curve and approved arrangement.

Wetted componentsWetted materials selected for the liquid and temperature
SealingModel-specific shaft sealing
Liquid / design limitsClean water or similar liquid
medium name and compositionInclude this information in the duty review and model selection
required flowInclude this information in the duty review and model selection
total headInclude this information in the duty review and model selection
operating temperatureInclude this information in the duty review and model selection
suction conditionsInclude this information in the duty review and model selection
installation arrangementInclude this information in the duty review and model selection
power supply and drive methodInclude this information in the duty review and model selection
materials, standards and inspection requirementsInclude this information in the duty review and model selection
required supply scopeInclude this information in the duty review and model selection

AI-generated family illustrations. The selected configuration follows the agreed model and drawing.

installation

Installation & drive arrangement

Double-Suction Split-Case Pump: illustrative installation and drive arrangement

Foundation & piping

Check mounting, alignment, pipe supports and suction conditions. Keep pipe loads within the selected arrangement requirements.

Drive & maintenance

Confirm speed, driver, coupling or transmission and guarding. Provide access for seals, bearings and rotating-assembly maintenance.

Before installation

  • Foundation / mounting and pipe supports
  • Liquid supply and discharge connections
  • Electrical supply and maintenance access
Discuss the installation

AI-generated family illustrations. The selected configuration follows the agreed model and drawing.

applications

Typical applications

Application illustration: a municipal water-supply pumping station

industry

For industry, check the applicable product curve, liquid properties, required operating point and installation geometry. Check the proposed arrangement against horizontal split-case arrangement and wetted materials selected for the liquid and temperature, then verify the operating point on the selected model curve.

municipal water

For municipal water, check the applicable product curve, liquid properties, required operating point and installation geometry. Check the proposed arrangement against horizontal split-case arrangement and wetted materials selected for the liquid and temperature, then verify the operating point on the selected model curve.

power stations

For power stations, check the applicable product curve, liquid properties, required operating point and installation geometry. Check the proposed arrangement against horizontal split-case arrangement and wetted materials selected for the liquid and temperature, then verify the operating point on the selected model curve.

irrigation

For irrigation, state demand, pumping water level, source quality and seasonal operating range. Check the proposed arrangement against horizontal split-case arrangement and wetted materials selected for the liquid and temperature, then verify the operating point on the selected model curve.

waterworks

For waterworks, check the applicable product curve, liquid properties, required operating point and installation geometry. Check the proposed arrangement against horizontal split-case arrangement and wetted materials selected for the liquid and temperature, then verify the operating point on the selected model curve.

supply scope

Choose the supply scope for this pump

Define the pump configuration, installation interfaces, controls and documents in the quotation.

Pump assembly illustration for Double-Suction Split-Case Pump

Pump assembly

Hydraulic end, materials, sealing and interfaces for your driver or installation.

Electric pump set illustration for Double-Suction Split-Case Pump

Electric pump set

Pump and matched motor, coupling / transmission, base and guarding as applicable.

Installation & controls illustration for Double-Suction Split-Case Pump

Installation & controls

Agreed supports, controls, auxiliaries, spares and technical documents.

AI-generated family illustrations. The selected configuration follows the agreed model and drawing.

manufacturing

From preparation to shipment

Foundry workers pouring molten metal into a pump-component mold

Casting of pump components

Casting produces pump components to the construction and material requirements of the selected equipment. The applicable alloy, pattern and component geometry depend on the pump family and the agreed operating conditions.

Operator working at a large machining machine in the workshop

Finish machining

Machining prepares mounting faces, bores, fits and connection interfaces for assembly. OEM parts should be reviewed against the approved drawing and revision, including the dimensions that determine interchange and installation.

Pump castings staged for manufacturing

Component handling & staging

Owner-supplied factory photograph showing pump castings staged in a work area. The exact parts and process route depend on the selected order.

Factory test-control equipment

Inspection equipment & controls

Owner-supplied factory photograph showing test-control equipment. The inspection points and acceptance records must be agreed for the selected equipment.

View manufacturing

documents

Technical documents

Model-specific documents

Request the selected model curve, arrangement drawing, materials, installation instructions and agreed inspection records.

Request technical documents

questions

Double-Suction Split-Case Pump FAQs

How do I select a model?

medium name and composition; required flow; total head; operating temperature; suction conditions; installation arrangement; power supply and drive method; materials, standards and inspection requirements; required supply scope. Review the complete duty on the applicable model curve.

Which materials and sealing can be supplied?

Wetted materials selected for the liquid and temperature. Model-specific shaft sealing. Confirm compatibility with the complete liquid composition and temperature.

Are catalogue model references guaranteed duty points?

Catalogue ranges summarize printed records and may combine different conditions. Check each model against its source curve and required speed.

What is included in the delivery?

Confirm pump, driver, controls, auxiliaries, spares, drawings, manuals and required test records in the agreed quotation.

enquiry

Tell us about your pump duty

Describe the liquid, required output and site arrangement so BBP can review the model and equipment scope.

  • medium name and composition
  • required flow
  • total head
  • operating temperature
  • suction conditions
  • installation arrangement
  • power supply and drive method
  • materials, standards and inspection requirements
  • required supply scope

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+86 182 1085 0516

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