Editorial Technical Reference

Condensate Pump

This page explains how Condensate 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 specialized pump designed to handle condensate (condensed steam/water) in industrial systems

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

Product Specifications

Technical details and manufacturing context for Condensate Pump

Definition
A condensate pump is a mechanical component used within a condensate recovery system to transfer condensed steam or water from collection points back to the boiler feedwater system or other designated locations. Its primary function is to maintain system pressure and prevent water accumulation that could otherwise disrupt operations. The pump operates by using mechanical energy, typically from an electric motor, to create pressure differentials that move the condensate through piping. Most condensate pumps are of centrifugal or positive displacement design, specifically engineered to handle hot water and prevent cavitation, which is a common challenge when pumping near-boiling liquids. Typical construction materials include cast iron, stainless steel, and bronze, chosen for their resistance to corrosion and ability to withstand elevated temperatures. The pump's performance is defined by several key parameters that must be selected based on the specific application. Flow rate ranges from 5 to 100 m³/h, head from 20 to 120 m, and operating temperature from 0 to 120°C. Operating pressure is typically between 1.0 and 1.6 MPa, and motor power ranges from 0.75 to 15 kW. Electrical specifications include voltage of 380–460 V AC, frequency of 50–60 Hz, ingress protection rating of IP54–IP65, and insulation class F–H. Pump efficiency is typically 60–85%, and the weight varies from 50 to 500 kg depending on size and material. Material grades may range from WCB to CF8M, depending on the corrosiveness of the condensate. These parameters are reference ranges and must be verified against the actual model and application requirements. Standards such as ISO 9906, IEC 60034, IEC 60038, IEC 60529, IEC 60085, and ASTM A216/A351 are used as procurement and verification references. Always confirm model-specific values and standards with the legal manufacturer or supplier before selection or installation.
Working Principle
The condensate pump operates by converting mechanical energy from an electric motor into hydraulic energy. The motor drives an impeller (in centrifugal pumps) or a positive displacement mechanism, creating a pressure differential that moves condensate from a low-pressure collection point to a higher-pressure destination. The pump is designed to handle hot water near its boiling point, so it must minimize the risk of cavitation. This is achieved through proper pump selection, such as using a low NPSH (Net Positive Suction Head) design or subcooling the condensate. The pump maintains system pressure and prevents water accumulation, ensuring efficient condensate return.
Common Materials
Cast Iron, Stainless Steel, Bronze
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Rate5–100 m³/hSelect based on condensate volumeISO 9906
Head20–120 mDepends on system pressure and pipingISO 9906
Operating Temperature0–120 °CAbove 120°C requires high-temp seals
Operating Pressure1.0–1.6 MPa
Motor Power0.75–15 kWMatch to flow and headIEC 60034
Voltage380–460 V ACThree-phase, 50/60 HzIEC 60038
Frequency50–60 HzSelect according to local gridIEC 60038
Ingress ProtectionIP54–IP65IP65 for outdoor or washdownIEC 60529
Insulation ClassF–HClass H for high ambient temperatureIEC 60085
Pump Efficiency60–85 %Higher efficiency reduces energy costISO 9906
MaterialWCB–CF8MCF8M for corrosive condensateASTM A216/A351
Weight50–500 kgDepends on pump size and material

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 transfers energy to the condensate
    Material: Stainless Steel
  • Casing Part
    Contains the impeller and directs condensate flow
    Material: Cast Iron
  • Motor
    Provides rotational power to drive the pump
    Material: Various (typically aluminum housing with copper windings)
  • Seal Part
    Prevents condensate leakage along the shaft
    Material: Carbon/Ceramic

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 (standard), 15 bar for high-pressure variants
flow rate: 0.5 to 50 m³/h (typical range)
temperature: 5°C to 120°C (typical), up to 150°C for high-temp models
slurry concentration: Not suitable for slurries; max 5% solids content for clean condensate only
Media Compatibility
✓ Clean steam condensate ✓ Boiler feedwater ✓ Deionized water systems
Unsuitable: Abrasive slurries or corrosive chemical solutions
Sizing Data Required
  • Required flow rate (m³/h)
  • Total dynamic head (meters)
  • Net Positive Suction Head Available (NPSHa)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation
Cause: Insufficient NPSH (Net Positive Suction Head) due to high condensate temperature, low suction pressure, or excessive pump speed causing vapor bubble formation and implosion on impeller surfaces.
Bearing failure
Cause: Inadequate lubrication, contamination from water ingress or particulate matter, misalignment, or excessive vibration leading to overheating and premature wear.
Maintenance Indicators
  • Unusual high-pitched whining or grinding noise from pump casing
  • Excessive vibration detected by hand or vibration monitoring equipment
Engineering Tips
  • Maintain proper NPSH margin by ensuring condensate temperature remains below saturation point and suction piping is free of restrictions
  • Implement precision alignment during installation/repair and use condition monitoring (vibration analysis, oil analysis) for predictive maintenance

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 5199:2015 (Technical specifications for centrifugal pumps) ANSI/HI 1.1-1.5 (Hydraulic Institute standards for pumps) EN 809:1998+A1:2009 (Pumps and pump units for liquids)

Quoted from the published standard.

Manufacturing Precision
  • Impeller diameter: +/-0.5mm
  • Shaft runout: 0.025mm maximum
Quality Inspection
  • Hydrostatic pressure test (1.5x design pressure)
  • Vibration analysis (ISO 10816 compliance)

Manufacturers of Condensate Pump

2 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.

Chinafore
Hangzhou, Zhejiang, CN
Founded 2003250+ staff50,000 square meters
ISO 9001 ISO 14001
Also makes: Ductwork System, Flexible Duct, Vacuum Pump and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
Shanghai Kaiquan Pump Group
Shanghai, CN
Also makes: Centrifugal Pump, Feedwater Pump, Pressure Pump and 1 more
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is the typical flow rate range for a condensate pump?

The flow rate range is typically 5 to 100 m³/h, but the exact value must be selected based on the condensate volume in your system. Always verify with the manufacturer for your specific application.

What materials are commonly used for condensate pumps?

Common materials include cast iron, stainless steel, and bronze. The choice depends on the corrosiveness of the condensate and operating conditions. Material grades may range from WCB to CF8M.

How does a condensate pump prevent cavitation?

Cavitation is prevented by ensuring sufficient Net Positive Suction Head (NPSH) and by using pump designs that handle hot water. Proper pump selection and system design are critical. Consult the manufacturer for guidance.

What standards apply to condensate pumps?

Relevant standards include ISO 9906 for hydraulic performance, IEC 60034 for motors, IEC 60038 for voltage/frequency, IEC 60529 for ingress protection, IEC 60085 for insulation, and ASTM A216/A351 for materials. These are verification references, not certifications.

Data Basis

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

Preliminary Technical Classification
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