Water Supply Pump

Industrial Water Supply Pumps | End-Suction, Multistage & Split Case

Product Overview These centrifugal water supply pumps provide reliable fluid transfer for municipal water distribution, HVAC chilled/hot water loops, and industrial processing. Available in end-suction, vertical multistage, and double-suction configurations. Wetted components are configurable in Cast Iron (HT250), Stainless Steel (SS304/316), or Duplex Stainless Steel (2205) depending on fluid corrosivity and operating temperature.

Technical Specifications & Selection

Evaluate the primary parameters below to match your system duty point. We provide exact pump performance curves and dimensional drawings upon specifying flow and head.

Pump Series	Configuration	Flow Range (m3/h)	Head Range (m)	Max Pressure	Temp. Range	Typical Material (Casing / Impeller)
ES Series	Horizontal End-Suction	5 - 1,200	5 - 150	16 Bar	-15C to 120C	Cast Iron / SS304
VM Series	Vertical Multistage	1 - 200	10 - 330	33 Bar	-20C to 120C	SS304 / SS316
DS Series	Split Case Double-Suction	68 - 11,000	10 - 200	25 Bar	-10C to 105C	Cast Iron / Bronze

Core Component Details

Impeller	Closed type. Dynamically balanced to ISO 1940 Class G6.3.
Mechanical Seal	Silicon Carbide (SiC) vs. Carbon, EPDM/Viton elastomers.
Bearings	SKF or NSK deep groove ball bearings, grease-lubricated.
Motors	TEFC, IP55 protection, Class F insulation, IE3 or IE4 efficiency.

Application Guide

Match the pump configuration to your exact application requirements:

Municipal Booster Stations

DS Series (Split Case). The double-suction impeller minimizes axial thrust, supporting continuous 24/7 operation at high flow rates.

HVAC Chilled/Hot Water Loops

ES Series (End-Suction). Close-coupled or bare-shaft configurations available. Fits standard baseplates.

Reverse Osmosis (RO) & Boiler Feed

VM Series (Vertical Multistage). Stainless steel 316 construction prevents fluid contamination. Handles high discharge pressures (up to 33 Bar) required for membrane filtration.

Manufacturing & Quality Assurance

Production metrics and testing protocols conducted at our facility:

Material Verification

Raw castings undergo optical emission spectrometry (OES) to confirm chemical composition before machining.

Machining

Volutes and impellers are machined using 5-axis CNC equipment, maintaining geometric tolerances of +/-0.01mm to ensure hydraulic efficiency.

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Hydrostatic Testing

100% of pump casings are pressurized to 1.5 times the maximum working pressure for 10 minutes to verify zero leakage.

Performance Testing Lab

Closed-loop test bench compliant with ISO 9906:2012 Grade 2B. We measure flow, head, power consumption, and vibration. A certified test report is generated for every unit prior to dispatch.

Procurement & Logistics

Lead Time

15-21 days for standard Cast Iron/SS304 models. 35-45 days for customized Duplex Steel or high-voltage motor configurations.

Packaging

Seaworthy, fumigation-free ISPM-15 plywood crates. Bearings are greased, and flanges are capped to prevent moisture/debris ingress during transit.

Spare Parts

Mechanical seals, O-rings, and impellers are standard dimensions. Replacement kits ship within 48 hours globally.

Request a Quote & Submittal Package

To receive an accurate quotation, pump performance curve, and project submittal package, provide the following operating data:

Target Flow Rate (GPM or m3/h)

Total Dynamic Head (TDH in ft or m)

Liquid Type and Temperature

Power Supply (Voltage/Phase/Hz)

Frequently Asked Questions

Q: How do you minimize cavitation risks in these pumps?

A: We publish detailed NPSHr (Net Positive Suction Head required) curves for all models. For applications with poor suction conditions, we provide impellers with enlarged eye diameters and optional inducers to lower the NPSHr by up to 30%.

Q: Are the pump motors compatible with Variable Frequency Drives (VFDs)?

A: Yes. The standard IE3 motors feature Class F insulation and phase paper suitable for VFD operation. For frequencies below 30Hz or above 60Hz, we install PTC thermistors and insulated bearings to prevent electrical pitting.

Q: Can you supply pumps compliant with potable water standards?

A: We offer specific configurations featuring NSF/ANSI 61 approved fusion-bonded epoxy (FBE) coatings on cast iron components, or full SS304/SS316 wetted parts, ensuring safe drinking water transfer.

Q: What is the expected MTBF (Mean Time Between Failures)?

A: Under standard operating conditions (clean water, proper alignment, within allowable operating range), the mechanical seals have an expected lifespan of 15,000 hours, and bearings exceed 25,000 hours before requiring maintenance.

Q: Do you offer custom impeller trimming?

A: Yes. During the assembly process, we trim the impeller diameter on a lathe to match your specific duty point. This avoids energy waste associated with running an oversized pump and relying on discharge valve throttling.

Q: What documentation is included with the shipment?

A: Each pump ships with an Operation and Maintenance (O&M) manual, general arrangement drawing, ISO 9906 performance test curve, and a material certificate (EN 10204 3.1) if requested during the ordering phase.

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