Dosing Pump Head

Product Specifications

Technical details and manufacturing context for Dosing Pump Head

Definition

The dosing pump head is the critical component within a proportioning dosing unit responsible for accurately measuring and delivering precise volumes of liquids, chemicals, or additives. It serves as the interface between the pump mechanism and the fluid being dosed, ensuring controlled flow rates and consistent dosing accuracy in industrial processes. The head's design determines flow rate, pressure capability, and chemical compatibility. It typically uses diaphragm, piston, or peristaltic mechanisms to generate precise volumetric displacement, with check valves ensuring unidirectional flow. The head operates by creating a sealed chamber where fluid is drawn in during the suction stroke and expelled during the discharge stroke. Available wetted materials include 316L stainless steel, PTFE, ceramic, and PVDF, allowing compatibility with a range of chemicals. Key parameters include flow rate (0.5–50 L/h), stroke length (5–20 mm), stroke frequency (10–120 strokes/min), accuracy (±0.5%), repeatability (±0.1%), operating pressure (1.0–1.6 MPa), operating temperature (-10 to 80 °C), viscosity range (1–1000 mPa·s), power supply (220–240 V AC, single phase, 50/60 Hz), power consumption (30–90 W), ingress protection (IP54–IP65 per IEC 60529), wetted materials (PVDF, PTFE, 316L), and weight (5–15 kg). These values are reference ranges and must be verified for the specific model and application. The dosing pump head is a component, not a standalone pump; it requires integration with a drive unit and control system. For procurement, confirm the exact model's specifications, chemical compatibility, and applicable standards with the legal manufacturer or supplier. Regular maintenance includes checking diaphragm and seal integrity, and verifying calibration to maintain accuracy.

Working Principle

The dosing pump head operates by creating a sealed chamber where fluid is drawn in during the suction stroke and expelled during the discharge stroke. It typically uses diaphragm, piston, or peristaltic mechanisms to generate precise volumetric displacement, with check valves ensuring unidirectional flow. The head's design determines flow rate, pressure capability, and chemical compatibility.

Common Materials

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

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	0.5–50 L/h	Adjustable per stroke length and frequency
Stroke Length	5–20 mm	Determines displacement per stroke
Stroke Frequency	10–120 strokes/min	Affects flow rate and pulsation
Accuracy	±0.5 %	Steady-state accuracy of delivered volume
Repeatability	±0.1 %	Consistency of successive deliveries
Operating Pressure	1.0–1.6 MPa
Operating Temperature	-10–80 °C	Material limits for diaphragm and seals
Viscosity Range	1–1000 mPa·s	Higher viscosity may require derating
Power Supply	220–240 V AC	Single phase, 50/60 Hz
Power Consumption	30–90 W	Depends on motor size and load
Ingress Protection	IP54–IP65	IP65 for washdown environmentsIEC 60529
Wetted Materials	PVDF, PTFE, 316L	Chemical compatibility required
Weight	5–15 kg	Varies with motor and head size

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 Part
Creates flexible barrier between pump mechanism and fluid, preventing contamination

Material: PTFE or EPDM
Check Valves
Ensure unidirectional flow by opening during suction and closing during discharge

Material: 316L Stainless Steel or Ceramic
Fluid Chamber Part
Holds and meters the precise volume of fluid being dosed

Material: 316L Stainless Steel or PVDF
Connection Ports Part
Provide inlet and outlet interfaces for fluid lines

Material: 316L Stainless Steel

Applied To / Applications

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

Proportioning Dosing Unit

View system integration details

Manufacturers of Dosing Pump Head

Manufacturer profiles associated with Dosing Pump Head.

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Frequently Asked Questions

What is a dosing pump head used for?

A dosing pump head is a component of a proportioning dosing unit that accurately meters and dispenses specific volumes of chemicals or additives in industrial processes. It ensures controlled flow rates and consistent dosing accuracy.

What materials are available for the wetted parts?

The wetted materials on file include 316L stainless steel, PTFE, ceramic, and PVDF. The specific material must be selected based on chemical compatibility with the fluid being dosed.

What are the typical operating pressure and temperature ranges?

The operating pressure range is 1.0–1.6 MPa, and the operating temperature range is -10 to 80 °C. These are reference values; confirm the exact limits for your model.

How do I verify the accuracy of a dosing pump head?

Accuracy is specified as ±0.5% and repeatability as ±0.1%. To verify, perform calibration tests under actual operating conditions and compare delivered volumes to the setpoint. Always consult the manufacturer's guidelines.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 10 bar
flow rate:	0.1 to 100 mL/min
temperature:	-10°C to 80°C
slurry concentration:	Up to 20% solids by weight

Product Specifications

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