Solenoid-Driven Metering Pumps

What they do

Solenoid-driven diaphragm metering pumps are available in capacities ranging from 0.74 to 75 l/h at a back pressure of 25 to 2 bar. To be able to meter almost any liquid chemicals, ProMinent uses a very extensive range of materials.

How they work

A magnet moves the solenoid shaft forwards and backwards by switching on and off. This stroke movement is transferred to the diaphragm in the dosing head. Two non-return valves prevent the feed chemical from flowing back during pumping. But that's not all. The stroke length and stroke rate can be adjusted to alter the capacity of a ProMinent solenoid-driven metering pump.

Where they are used

  • General: Chemical metering up to 75 l/h
  • Potable water treatment: Metering of disinfectants
  • Cooling circuits: Metering of corrosion inhibitors and biocides
  • Waste water treatment: Metering of flocculants
  • Paper industry: Metering of additives
  • Plastics production: Metering of additives

What are the advantages?

Because there is only one moving part, the drive is virtually wear-free. The pump requires no lubricated bearings or shafts; the maintenance and repair costs are therefore very low. The continuous running characteristics are excellent.

Find the right pump type in four steps

  • Specify pump capacity in litres per hour [l/h]
  • Specify back pressure in bar
  • Find the intersection of these two values and select the pump type that lies nearest to it

Pump Guide

The choice of pumps is huge: 80 industries, 100,000 products and infinite applications. To make it as easy as possible to find your ideal metering pump, ProMinent designed the Pump Guide. All it takes is a few clicks to find a selection of suitable models.

How it works

First enter the pump capacity and back pressure. The Pump Guide will then show you all the metering pumps that match your criteria. You can choose between list view and detail view. The database contains all solenoid-driven metering pumps, motor-driven metering pumps, process metering pumps and peristaltic pumps from ProMinent. They are divided into more than 30 different product ranges.

Exactly the right pump

Narrow down your search by clicking on different selection criteria. Do you have a specific industry, operating mode, medium or viscosity in mind? Or maybe you need a pump for zones at risk of explosion? The Pump Guide will take you to the pump you need with just a few clicks.

Directly to the Pump-Guide


Solenoid-Driven Metering Pump Beta®

Capacity range 0.74 – 32 l/h, 25 – 2 bar

All-purpose solenoid-driven metering pump for metering liquid media in water treatment and chemical processes: Solenoid-driven metering pump Beta®. Cost-effective, overload-proof, adaptable to existing signal transducers. more

Your benefits

  • Optional external control via 0/4 – 20 mA and potential-free contacts with pulse step-up and step-down of 32:1 to 1:32
  • Simple adjustment of metering capacity via stroke rate and stroke length
  • Adaptation to existing signal transducers by external control via potential-free contacts with pulse step-up and step-down
  • Suitable for use with almost all liquid chemicals thanks to the available material combinations: PP, PVDF, clear acrylic, PTFE and stainless steel
  • Self-bleeding dosing head design in clear acrylic/PVC and PP
  • Virtually wear-free solenoid drive: economical and overload-proof

Solenoid-Driven Metering Pump gamma/ X

Capacity range 2.3 – 45 l/h, 25 – 2 bar

The solenoid-driven diaphragm metering pump gamma incorporates a wealth of eXcellent ingenuity! With integrated pressure measurement, it ensures the smooth running of your metering process. The gamma/ X is ideal for all metering work involving liquid media. more

Your benefits

  • Simple adjustment of the capacity directly in l/h
  • Direct input of the required final concentration in concentration mode for volume-proportional metering tasks
  • Integrated pressure measurement and display for greater safety during commissioning and in the process
  • Capacity adjustment range 1:40,000
  • Virtually wear-free solenoid drive, overload-proof and economical
  • Suitable for continuous micro-metering from approx. 1 ml/h, thanks to the regulated solenoid drive

Solenoid-Driven Metering Pump gamma/ XL

Capacity range 8 – 80 l/h, 25 – 2 bar

The gamma/ XL is a smart, connectible solenoid-driven metering pump that is setting new standards in terms of productivity, reliability and cost-effectiveness. more

Your benefits

  • Simple adjustment of the capacity directly in l/h or in gph
  • Integrated pressure measurement and display for greater safety during commissioning and in the process
  • Bluetooth and Wi-Fi connection for the simple configuration and call-up of process data (optional)
  • Capacity adjustment range 1:40,000
  • Direct input of the required final concentration with volume-proportional metering tasks in concentration mode
  • Virtually wear-free solenoid drive, overload-proof and economical

Contact us

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