Editorial Technical Reference

Water Pump

This page explains how Water Pump is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical device that circulates coolant through a water cooling system by converting rotational energy into hydraulic energy.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Water Pump

Definition
A water pump is a component used in water cooling systems to maintain continuous coolant flow through a closed loop. It is typically driven by an electric motor or mechanical drive, which rotates an impeller inside a pump housing. The impeller's rotation creates centrifugal force, drawing coolant in through the inlet and discharging it under pressure through the outlet, ensuring circulation through the cooling circuit. This circulation facilitates heat transfer from heat-generating components, such as engines, industrial machinery, or electronics, to a radiator or heat exchanger for dissipation. The pump is selected based on system requirements, including flow rate, head, operating pressure, motor power, and other parameters. Common materials include cast iron, aluminum alloy, stainless steel, ceramic, and polymer composites. Performance parameters, such as flow rate (0.5–120 m³/h), head (5–80 m), operating pressure (1.0–1.6 MPa), motor power (0.75–45 kW), voltage (380 V), frequency (50 Hz), operating temperature (-10–80 °C), ingress protection (IP54–IP68), efficiency (60–85%), noise level (≤75 dB(A)), weight (15–350 kg), and material grades (HT250/304/316), are provided as reference ranges and must be verified for the specific model and application. Standards such as ISO 9906, IEC 60034, IEC 60038, ISO 2858, IEC 60529, ISO 3744, GB/T 9439, and ASTM A276 are referenced for testing and verification, but do not imply certification or compliance. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
An electric motor or mechanical drive rotates an impeller inside a pump housing. The rotating impeller creates centrifugal force that draws coolant in through the inlet and discharges it under pressure through the outlet, creating continuous circulation through the cooling circuit.
Common Materials
Cast Iron, Aluminum Alloy, Stainless Steel, Ceramic, Polymer Composites
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Rate0.5–120 m³/hSelect based on system demandISO 9906
Head5–80 mRequired for system pressureISO 9906
Motor Power0.75–45 kWMatch to pump duty pointIEC 60034
Voltage380 VThree-phase, 50 HzIEC 60038
Frequency50 HzStandard in ChinaIEC 60038
Operating Temperature-10–80 °CFor standard mechanical sealISO 2858
Ingress ProtectionIP54–IP68IP68 for submersibleIEC 60529
Pump Efficiency60–85 %At best efficiency pointISO 9906
Noise Level≤75 dB(A)At 1 m distanceISO 3744
Weight15–350 kgDepends on material and size
MaterialHT250/304/316Casing/impeller/shaftGB/T 9439, ASTM A276

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Impeller
    Rotating component that creates centrifugal force to move coolant
    Material: Polymer Composite or Stainless Steel
  • Motor Housing Part
    Protects and contains the electric motor, provides structural support
    Material: Aluminum Alloy or Cast Iron
  • Shaft Seal Part
    Prevents coolant leakage between rotating shaft and stationary housing
    Material: Ceramic or Carbon
  • Bearing Assembly
    Supports the rotating shaft and reduces friction
    Material: Stainless Steel with Polymer Retainers
  • Inlet/Outlet Ports Part
    Connection points for coolant hoses or pipes
    Material: Brass or Stainless Steel
  • Pump Housing
    The volute casing the impeller turns inside; it converts velocity into discharge pressure.
  • Electric Motor
    Drives the impeller; the BOM already lists the housing built to contain it.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar
flow rate: 5 to 500 L/min
temperature: -10°C to +80°C
slurry concentration: Up to 5% solids by weight
Media Compatibility
✓ Water ✓ Ethylene glycol/water mixtures ✓ Corrosion-inhibited coolants
Unsuitable: Abrasive slurries with high solids content
Sizing Data Required
  • Required flow rate (L/min)
  • System pressure drop (bar)
  • Coolant viscosity at operating temperature

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation
Cause: Localized vapor bubble formation and collapse due to low suction pressure or high fluid temperature, causing pitting and erosion on impeller surfaces.
Bearing failure
Cause: Lubrication breakdown, contamination, misalignment, or excessive loading leading to overheating, vibration, and eventual seizure or catastrophic failure.
Maintenance Indicators
  • Unusual high-frequency vibration or knocking sounds from pump housing
  • Visible fluid leakage at shaft seals or casing joints with pressure drop
Engineering Tips
  • Maintain NPSH (Net Positive Suction Head) above manufacturer's minimum specifications through proper suction piping design and temperature control
  • Implement condition-based monitoring with vibration analysis and lubricant particle counting to detect early degradation

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 9906:2012 (Rotodynamic pumps - Hydraulic performance acceptance tests) ANSI/HI 1.1-1.2 (American National Standard for Rotodynamic Centrifugal Pumps for Nomenclature and Definitions) EN 809:1998+A1:2009 (Pumps and pump units for liquids - Common safety requirements)

Quoted from the published standard.

Manufacturing Precision
  • Impeller diameter: +/-0.5% of nominal diameter
  • Shaft runout: 0.025mm maximum at coupling end
Quality Inspection
  • Hydrostatic pressure test (1.5x maximum working pressure for 30 minutes)
  • Performance curve verification test (flow rate vs head efficiency at multiple operating points)

Manufacturers of Water Pump

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Semicorex Advanced Material Technology Co.,Ltd
Ningbo, Zhejiang, CN
Also makes: Mechanical Seal, End-Effector, Vacuum Chuck and 2 more
Managed by the manufacturer
Listed on the company's own website
Dandong Foundry (Liaoning Borui Machinery Co., Ltd)
Dandong, Liaoning, CN
ISO 9001
Listed on the company's own website · profile compiled by CNFX from public sources
Milestone Engineering & Manufacturing Co.,Ltd.
Hebei, CN
Founded 2006more than 200 workers staff
Listed on the company's own website · profile compiled by CNFX from public sources
Shandong Huaquan Power Co., Ltd.
Weifang, Shandong, CN
42,000 m²
ISO CE
Stated by the company · profile compiled by CNFX from public sources
Shijiazhuang Chongmu Fluid Machine Co., Ltd.
Hebei, CN
Also makes: Centrifugal Pump, Pump Motor, Industrial Pumps and 1 more
Listed on the company's own website · profile compiled by CNFX from public sources
Hangzhou Smart Mfg. Group Co., Ltd.
Hangzhou, Zhejiang, CN
ISO-9001:2015 ISO-14001:2015 ISO-45001:2018 IATF-16949:2016 +1
Listed on the company's own website · profile compiled by CNFX from public sources
Anhui Quanchai Engine Co., Ltd.
Anhui, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Chillerone
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Convista
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
FerroTec Shanghai Semiconductor Wafer Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Fortior Technology
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
GIM FLUID Equipment (Shanghai) Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the primary function of a water pump in a cooling system?

The primary function is to circulate coolant through a closed loop, ensuring heat transfer from heat-generating components to a radiator or heat exchanger for dissipation.

How is the water pump driven?

It is driven by an electric motor or mechanical drive that rotates the impeller, creating centrifugal force for coolant circulation.

What materials are commonly used for water pumps?

Common materials include cast iron, aluminum alloy, stainless steel, ceramic, and polymer composites, depending on the application.

What standards are referenced for water pump testing?

Standards such as ISO 9906, IEC 60034, IEC 60038, ISO 2858, IEC 60529, ISO 3744, GB/T 9439, and ASTM A276 are referenced for verification, but compliance must be confirmed with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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