Editorial Technical Reference

Circulation Pump

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

Technical Definition & Core Assembly

A pump designed to continuously circulate cleaning and sanitizing fluids through the piping and vessels of an Automated CIP/SIP System.

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

Product Specifications

Technical details and manufacturing context for Circulation Pump

Definition
Within an Automated CIP/SIP (Clean-in-Place/Sterilize-in-Place) System for Beverage Production, the circulation pump is a critical component responsible for generating the necessary flow and pressure to move cleaning solutions (e.g., caustic, acid, sanitizer) and rinse water through the entire closed-loop circuit. It ensures thorough contact and mechanical action of the fluids with all internal surfaces of tanks, pipes, and process equipment to remove soil, microbes, and residues, enabling automated cleaning and sterilization without disassembly. The pump is typically a centrifugal type, driven by an electric motor that rotates an impeller within a sealed volute casing. This rotation creates centrifugal force, drawing fluid into the center (eye) of the impeller and expelling it at high velocity through the discharge port, thereby creating flow and pressure. For CIP/SIP duty, the pump must handle varying fluid viscosities, temperatures, and often corrosive or aggressive chemicals. The wetted parts are typically made of stainless steel (AISI 316L) with PTFE seals and ceramic mechanical seal faces. Key parameters to verify for a specific application include flow rate (15–60 m³/h), head (20–50 m), operating pressure (1.0–1.6 MPa), motor power (5.5–22 kW), supply voltage (380–480 V AC), frequency (50–60 Hz), maximum fluid temperature (95–140 °C), ambient temperature (-10–40 °C), ingress protection (IP54–IP65), wetted material (316L), seal type (SiC/SiC), and weight (80–250 kg). These values are reference ranges and must be confirmed with the manufacturer for the actual model and application. The pump is designed to operate within a closed-loop system, and its performance should be verified according to ISO 9906 for flow and head, IEC 60034 for motor power and ambient temperature, IEC 60038 for voltage and frequency, IEC 60529 for ingress protection, ASTM A240 for material, and DIN 24960 for seals. Always consult the legal manufacturer for model-specific data and compliance.
Working Principle
The circulation pump operates on the centrifugal principle. An electric motor drives an impeller that rotates at high speed inside a volute casing. Fluid enters the impeller eye at the center and is flung outward by centrifugal force, gaining velocity and pressure as it moves through the casing and out the discharge port. This creates a continuous flow that circulates cleaning and sanitizing solutions through the CIP/SIP circuit. The pump must be selected to provide adequate flow and head to overcome piping friction and nozzle losses, and to maintain proper turbulence for effective cleaning. It must also handle the temperature and chemical compatibility of the fluids, with appropriate seals and materials.
Common Materials
Stainless Steel (AISI 316L), PTFE (Seals/Gaskets), Ceramic (Mechanical Seal Faces)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Rate15–60 m³/hSelect based on CIP circuit volume and velocity.ISO 9906
Head20–50 mMust overcome piping and nozzle losses.ISO 9906
Motor Power5.5–22 kWDepends on flow and head requirements.IEC 60034
Supply Voltage380–480 V ACThree-phase, 50/60 Hz.IEC 60038
Frequency50–60 HzVFD compatible for variable speed.IEC 60038
Max Fluid Temperature95–140 °CFor SIP up to 140°C with proper seals.
Ambient Temperature-10–40 °COutside range may require derating.IEC 60034-1
Ingress ProtectionIP54–IP65IP65 for washdown areas.IEC 60529
Wetted Material316LSurface roughness ≤0.8 µm Ra.ASTM A240
Seal TypeSiC/SiCSingle or double mechanical seal.DIN 24960
Weight80–250 kgIncluding motor, excluding baseplate.

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
    Rotates to impart kinetic energy to the fluid, creating flow.
    Material: Stainless Steel 316L
  • Volute Casing
    Houses the impeller and converts kinetic energy into pressure.
    Material: Stainless Steel 316L
  • Mechanical Seal
    Prevents fluid leakage along the pump shaft where it enters the casing.
    Material: Ceramic/Carbon, PTFE, Elastomers
  • Shaft Part
    Transmits torque from the motor to the impeller.
    Material: Stainless Steel
  • Motor
    Provides rotational power to drive the pump.
    Material: Various (Cast Iron, Aluminum, Steel)

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 (145 psi) maximum working pressure
flow rate: Typically 5-100 m³/h depending on pump size and system requirements
temperature: 5°C to 95°C (operating range), up to 140°C for SIP cycles
slurry concentration: Up to 5% solids by weight, particle size < 500 microns
Media Compatibility
✓ Caustic soda solutions (NaOH) ✓ Nitric acid-based sanitizers ✓ Hot water for cleaning cycles
Unsuitable: Hydrochloric acid (HCl) concentrations above 2% due to corrosion risk
Sizing Data Required
  • Required flow rate (m³/h) for effective cleaning velocity
  • System pressure drop (bar) including piping and vessel resistance
  • Fluid viscosity and temperature range for pump curve selection

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation
Cause: Insufficient Net Positive Suction Head (NPSH) causing vapor bubble formation and implosion on impeller surfaces, leading to pitting and material loss.
Bearing failure
Cause: Lubrication degradation (oil breakdown, contamination, or insufficient quantity) combined with misalignment or imbalance creating excessive radial/axial loads.
Maintenance Indicators
  • Unusual high-frequency vibration or audible knocking from pump casing
  • Sudden drop in discharge pressure accompanied by increased noise and flow instability
Engineering Tips
  • Maintain NPSH margin above manufacturer's requirement by ensuring proper suction piping design, avoiding air ingress, and monitoring fluid temperature/pressure.
  • Implement precision alignment during installation/repair and use vibration analysis to detect early imbalance/misalignment before bearing damage occurs.

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 5199:2016 - Technical specifications for centrifugal pumps ANSI/HI 1.1-1.6 - American National Standard for Rotodynamic Centrifugal Pumps EN 809:1998 + A1:2009 - Pumps and pump units for liquids - Common safety requirements

Quoted from the published standard.

Manufacturing Precision
  • Impeller Diameter: +/-0.05mm
  • Shaft Runout: 0.02mm maximum
Quality Inspection
  • Hydrostatic Pressure Test
  • Performance Curve Verification Test

Manufacturers of Circulation Pump

6 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.

Fortior Technology
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Hebei Ruibang Pump Co., Ltd.
Hebei, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Hydrorelax Bathroom industry manufacturer
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Purity Pump Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Purity Pumps
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Wassermann Pump
Zhejiang, CN
Also makes: Pressure Pump, Water Pump, Centrifugal Pump and 9 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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Frequently Asked Questions

What is the typical flow rate range for this circulation pump?

The reference flow rate range is 15 to 60 m³/h, but the exact value must be selected based on the CIP circuit volume and required velocity. Confirm with the manufacturer for your specific system.

What materials are used for wetted parts?

The wetted parts are typically made of stainless steel AISI 316L, with PTFE seals/gaskets and ceramic mechanical seal faces. These materials provide corrosion resistance and durability for cleaning chemicals.

Can this pump handle high temperatures for SIP?

The maximum fluid temperature range is 95 to 140 °C, depending on the seal configuration. For SIP applications up to 140 °C, proper seals are required. Verify the temperature rating with the manufacturer.

What standards are relevant for verifying pump performance?

Relevant standards include ISO 9906 for flow and head, IEC 60034 for motor power and ambient temperature, IEC 60038 for voltage and frequency, IEC 60529 for ingress protection, ASTM A240 for material, and DIN 24960 for seals. These are verification references, not proof of compliance.

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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