Pump Head / Chamber for Metering Pumps

Product Specifications

Technical details and manufacturing context for Pump Head / Chamber

Definition

The pump head or chamber is the central working component of a metering pump or valve assembly. It is the sealed housing that contains the reciprocating or rotating mechanism (such as a piston, diaphragm, or gear) which creates the pumping action. Its primary function is to precisely displace a specific volume of fluid with each cycle, enabling accurate dosing, metering, and transfer of liquids in industrial processes. It directly interfaces with the fluid, making its design critical for compatibility, pressure handling, and volumetric accuracy. The pump head is available in various materials including stainless steel (e.g., 316L), PTFE (Teflon), ceramic, engineered plastics (e.g., PEEK), and alloy steel, allowing selection based on chemical compatibility and process requirements. Key parameters include flow rate (0.5–50 L/h), operating pressure (1.0–1.6 MPa), operating temperature (-40–85 °C), viscosity range (0.3–1000 mPa·s), precision (repeatability ±0.05%), ingress protection (IP54–IP65), material of wetted parts (316L), connection size (DN15–DN50), weight (5–20 kg), and power consumption (0.5–2.5 kW). These values are reference ranges and must be verified for the specific model and application. The pump head is designed to meet relevant standards such as ISO 9905 for flow rate and precision, IEC 60529 for ingress protection, ASTM A240 for material, and ISO 7005 for connection size. Always confirm compliance with the legal manufacturer or supplier before procurement.

Working Principle

A drive mechanism (e.g., motor-driven cam or piston rod) transmits force to an internal element (piston, diaphragm, etc.) within the sealed chamber. The element's movement reduces the chamber volume, creating pressure to expel fluid through an outlet valve. On the return stroke, the volume increases, creating suction to draw in new fluid through an inlet valve, completing one metering cycle.

Common Materials

Stainless Steel (e.g., 316L), PTFE (Teflon), Ceramic, Engineered Plastics (e.g., PEEK), Alloy Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	0.5–50 L/h	Select based on required dosing capacity.ISO 9905
Operating Pressure	1.0–1.6 MPa
Operating Temperature	-40–85 °C	Exceeding limits may damage seals.
Viscosity Range	0.3–1000 mPa·s	Higher viscosity may require larger pump head.
Precision (Repeatability)	±0.05 %	Critical for metering applications.ISO 9905
Ingress Protection	IP54–IP65	Higher rating for dusty or wet environments.IEC 60529
Material (Wetted Parts)	316L	Corrosion resistance; other alloys available.ASTM A240
Connection Size	DN15–DN50 mm	Match piping system.ISO 7005
Weight	5–20 kg	Affects installation and support.
Power Consumption	0.5–2.5 kW	Depends on motor size and pressure.

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

Piston / Plunger Part
The reciprocating element that directly displaces the fluid within the chamber.

Material: Stainless Steel, Ceramic
Diaphragm Part
A flexible membrane that isolates the fluid from the drive mechanism, used in diaphragm pump heads.

Material: PTFE, FKM (Viton), EPDM
Valve Assembly (Inlet & Outlet)
Check valves that ensure one-way flow into and out of the pumping chamber.

Material: Stainless Steel, PTFE, Sapphire
Seals / Gaskets Part
Provide leak-proof sealing between static and moving parts of the pump head.

Material: PTFE, FKM (Viton), EPDM, Kalrez
Housing / Body Part
The main structural body that contains all internal components and provides pressure containment.

Material: Stainless Steel, Aluminum, Engineered Plastic

Applied To / Applications

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

Metering Pump/Valve

View system integration details

Manufacturers of Pump Head / Chamber

Manufacturer profiles associated with Pump Head / Chamber.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Technical documentation

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Frequently Asked Questions

What materials are available for the pump head?

The pump head can be made from stainless steel (e.g., 316L), PTFE (Teflon), ceramic, engineered plastics (e.g., PEEK), or alloy steel. The choice depends on chemical compatibility and process requirements.

What is the operating pressure range?

The operating pressure range is 1.0–1.6 MPa. Always verify the exact rating for your specific model.

What standards apply to the pump head?

Relevant standards include ISO 9905 for flow rate and precision, IEC 60529 for ingress protection, ASTM A240 for material, and ISO 7005 for connection size. Confirm compliance with the manufacturer.

How does the pump head achieve metering accuracy?

The pump head uses a reciprocating or rotating element to displace a precise volume per cycle. The repeatability is ±0.05%, but this depends on proper installation and operating conditions.

Data Basis

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

Preliminary Technical Classification

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pressure:	Up to 200 bar
flow rate:	0.1 mL/min to 20 L/min
temperature:	-20°C to 150°C
slurry concentration:	Up to 25% solids by weight

Pump Head / Chamber

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards