Pump Head / Fluid End for Dosing Pumps

Product Specifications

Technical details and manufacturing context for Pump Head / Fluid End

Definition

The pump head or fluid end is the critical component of a dosing pump responsible for creating pressure and controlling the flow of chemicals, additives, or other fluids. It houses the pumping mechanism (such as diaphragm, piston, or plunger) and fluid pathway components that enable precise metering and delivery of liquids in industrial processes. This part is designed for applications requiring accurate dosing, typically in water treatment, chemical processing, and other industrial settings. The pump head is available in materials such as 316L stainless steel, PTFE, ceramic, and PVDF, which are selected based on chemical compatibility and corrosion resistance. Key parameters include a maximum flow rate of 0.5–50 L/h, operating pressure of 1.0–1.6 MPa, stroke length of 10–50 mm, and stroke frequency of 30–120 min⁻¹. The accuracy is ±0.5% and repeatability is ±0.1%. Maximum fluid temperature ranges from 80–120°C, while ambient temperature is -20–60°C. Ingress protection is IP54–IP65 (per IEC 60529). Wetted materials include PVDF, PTFE, and 316L. Connection sizes are DN15–DN50 (per DIN 11851), and weight ranges from 5–25 kg. These values are directory reference ranges and must be confirmed for the specific model and application. The pump head operates by creating a pressure differential through mechanical action, enabling precise volumetric displacement. It is essential to verify model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The pump head operates by creating a pressure differential through mechanical action (diaphragm flexing, piston reciprocation, or plunger movement). During the suction stroke, fluid enters the chamber through inlet valves; during the discharge stroke, the fluid is pressurized and expelled through outlet valves. This cyclic action enables precise volumetric displacement and controlled dosing.

Common Materials

316L Stainless Steel, PTFE (Polytetrafluoroethylene), Ceramic, PVDF (Polyvinylidene fluoride)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Maximum Flow Rate	0.5–50 L/h	Determines pump size and application range
Stroke Length	10–50 mm	Affects flow rate and accuracy
Stroke Frequency	30–120 min⁻¹	Higher frequency reduces pulsation
Accuracy	±0.5 %	Steady-state accuracy of flow rate
Repeatability	±0.1 %	Consistency of metering
Max Fluid Temperature	80–120 °C	Limited by elastomer and diaphragm materials
Ambient Temperature	-20–60 °C	Operating range for the pump head
Ingress Protection	IP54–IP65	Dust and water resistance for outdoor useIEC 60529
Wetted Materials	PVDF, PTFE, 316L	Chemical compatibility and corrosion resistance
Connection Size	DN15–DN50 mm	Standard pipe connection sizesDIN 11851
Weight	5–25 kg	Affects installation and handling

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

Diaphragm/Piston Part
Creates pressure differential by flexing or reciprocating to displace fluid

Material: PTFE or Stainless Steel
Valve Assembly
Controls directional flow with check valves for inlet and outlet

Material: 316L Stainless Steel or Ceramic
Fluid Chamber
Holds and pressurizes the fluid during pumping cycles

Material: 316L Stainless Steel or PVDF
Seals/Gaskets Part
Prevents fluid leakage between components

Material: Viton, EPDM, or PTFE

Applied To / Applications

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

Dosing Pump

View system integration details

Manufacturers of Pump Head / Fluid End

Manufacturer profiles associated with Pump Head / Fluid End.

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Frequently Asked Questions

What materials are available for the pump head?

The pump head can be made from 316L stainless steel, PTFE, ceramic, or PVDF. The choice depends on chemical compatibility and corrosion resistance requirements for the specific fluid being handled.

What is the operating pressure range?

The operating pressure range is 1.0–1.6 MPa.

What is the accuracy and repeatability of dosing?

The steady-state accuracy of flow rate is ±0.5%, and repeatability is ±0.1%. These values indicate the consistency of metering, but actual performance should be verified for the specific model.

What are the temperature limits?

The maximum fluid temperature is 80–120°C, limited by elastomer and diaphragm materials. The ambient temperature range is -20–60°C. Ensure the operating environment stays within these limits.

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 to 1000 L/h
temperature:	-20°C to 120°C
slurry concentration:	Up to 20% solids by weight

Pump Head / Fluid End

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards