Editorial Technical Reference

Metering Pump/Valve

This page explains how Metering Pump/Valve 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 precision component that controls and dispenses specific volumes of resin within a storage and metering system.

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

Product Specifications

Technical details and manufacturing context for Metering Pump/Valve

Definition
The Metering Pump/Valve is a critical component of the Resin Storage and Metering System, responsible for the accurate volumetric dosing and controlled flow of liquid or viscous resin materials. It ensures precise delivery to downstream processes such as mixing, coating, or molding stations, directly impacting product quality and material efficiency. This component integrates a pump mechanism and a valve in a single unit, allowing for precise displacement and flow regulation. The pump element, which may be a piston, diaphragm, or gear type, draws a defined volume of resin from the storage tank and expels it through the valve. The valve controls the start, stop, and sometimes the flow rate, often actuated by an automated system for repeatable accuracy. The unit is designed for industrial environments, with wetted parts available in stainless steel 316L, PTFE, or ceramic, depending on the application and chemical compatibility. Key parameters include a flow rate range of 0.1–50 L/h, adjustable via stroke length (5–25 mm) and stroke frequency (10–120 min⁻¹). Accuracy is ±0.5% under constant conditions. Operating pressure ranges from 1.0 to 1.6 MPa, and temperature range is -20 to 80°C. Viscosity handling is 1–1000 mPa·s, with higher viscosities reducing maximum flow. Power supply is 24 V DC (±10%), with optional 230 V AC, and power consumption is 10–30 W. Ingress protection is IP54–IP65 (IEC 60529), suitable for washdown environments. Connection sizes are DN15–DN50 (ISO 7005), flanged or threaded. Weight is 5–15 kg, excluding actuator. Always verify model-specific values and standards with the legal manufacturer or supplier before selection or installation.
Working Principle
The Metering Pump/Valve operates by creating a displacement mechanism—such as a piston, diaphragm, or gear—to draw a precise volume of resin from the storage tank and then expel it through a valve. The valve component regulates the start, stop, and sometimes the flow rate of the dispensed material, often controlled by an automated system for repeatable accuracy. The displacement volume is determined by stroke length and frequency, allowing adjustable flow rates. The valve ensures unidirectional flow and prevents backflow, maintaining dosing integrity. The system is designed for precise volumetric control, with accuracy of ±0.5% under constant conditions. The working principle relies on mechanical displacement and valve timing, which can be adjusted to meet process requirements. Proper selection of materials and seals is critical for compatibility with the resin and operating conditions.
Common Materials
Stainless Steel (316L), PTFE (Polytetrafluoroethylene), Ceramic
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flow Rate0.1–50 L/hAdjustable per stroke length and frequency
Stroke Length5–25 mmDetermines displacement volume
Stroke Frequency10–120 min⁻¹Max 120 for continuous duty
Accuracy±0.5 %Repeatability under constant conditions
Operating Pressure1.0–1.6 MPa
Operating Temperature-20–80 °CSeals degrade above 80°C
Viscosity Range1–1000 mPa·sHigher viscosity reduces max flow
Power Supply24 ±10% V DCOptional 230 V AC available
Power Consumption10–30 WDepends on motor size
Ingress ProtectionIP54–IP65IP65 for washdown environmentsIEC 60529
Wetted Materials316LPTFE seals optionalASTM A240
Connection SizeDN15–DN50Flanged or threadedISO 7005
Weight5–15 kgExcludes actuator

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
  • Pump Head / Chamber
    Creates the displacement volume for metering the resin.
    Material: Stainless Steel or Ceramic
  • Diaphragm / Piston Part
    The moving element that displaces the resin within the pump chamber.
    Material: PTFE or Elastomer
  • Inlet/Outlet Check Valve
    Ensures one-way flow, preventing backflow and ensuring precise volume capture and discharge.
    Material: Stainless Steel with PTFE seal
  • Stroke Adjusting Mechanism
    Sets the stroke length that fixes the displacement per cycle — this is how the dose is dialled in.

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: 0 to 100 bar
flow rate: 0.1 to 100 mL/min
temperature: -20°C to 120°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ Epoxy resins ✓ Polyurethane adhesives ✓ Silicone sealants
Unsuitable: Abrasive slurries with particle size >100 microns
Sizing Data Required
  • Required flow rate (mL/min)
  • System operating pressure (bar)
  • Media viscosity at operating temperature (cP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Chemical incompatibility with pumped fluid leading to swelling, hardening, or cracking of elastomeric seals, or thermal stress from temperature cycling causing seal material fatigue.
Valve seat wear
Cause: Abrasive particles in the fluid causing erosion of the valve seat surface, or repeated impact from valve closure under high pressure leading to deformation and loss of sealing integrity.
Maintenance Indicators
  • Audible knocking or hammering sounds during operation indicating cavitation or valve impact issues
  • Visible fluid leakage around the pump head or valve stem, especially with discoloration or crystallization suggesting chemical attack
Engineering Tips
  • Implement a proactive fluid analysis program to monitor for particulate contamination and chemical composition changes that could accelerate wear or corrosion
  • Install pulsation dampeners and ensure proper suction line design to minimize cavitation risk and reduce hydraulic shock loads on valve components

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
ANSI/HI 7.1-7.6 (American National Standard for Metering Pumps) DIN EN 12266-1 (Industrial valves - Testing of metallic valves)

Quoted from the published standard.

Manufacturing Precision
  • Flow rate accuracy: +/- 0.5% of setpoint
  • Valve seat flatness: 0.025mm maximum deviation
Quality Inspection
  • Hydrostatic pressure test (1.5x maximum working pressure)
  • Material composition verification via X-ray fluorescence (XRF) analysis

Manufacturers of Metering Pump/Valve

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

SIKOPUMP
Shanghai, CN
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
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Frequently Asked Questions

What is the flow rate range of this metering pump/valve?

The flow rate range is 0.1–50 L/h, adjustable via stroke length and frequency. However, the actual achievable flow depends on the specific model, resin viscosity, and operating conditions. Always verify with the manufacturer.

What materials are available for wetted parts?

Wetted parts are available in stainless steel 316L, PTFE, or ceramic, as listed in the directory. The choice depends on chemical compatibility and process requirements. Confirm material suitability with the supplier.

What is the accuracy of the dosing?

The accuracy is ±0.5% under constant conditions. This means the delivered volume can vary by ±0.5% from the set point. For critical applications, verify accuracy under your specific process conditions.

What are the operating pressure and temperature limits?

The operating pressure range is 1.0–1.6 MPa, and the temperature range is -20 to 80°C. Exceeding these limits may cause seal degradation. Always check the manufacturer's data for your application.

Data Basis

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

Preliminary Technical Classification
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