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Motor Driven Metering Pumps

It's all thanks to the electric motor

Motor driven metering pumps need to be robust, reliable and able to run on their own without supervision. Metering pumps with mechanically actuated diaphragms can be used almost universally in low pressure ranges. And what about servicing? Minimal. Accuracy? Uncompromising. Value for money? The best.

Well adjusted

The stroke length and stroke rate – in this case the motor speed – can be adjusted to alter the capacity of this pump. The rotation of the electric motor is stepped down by a worm gear and converted into a linear stroke movement by a cam. The slide rod transfers this stroke movement to the diaphragm in the dosing head. Two non-return valves prevent the feed chemical from flowing back during pumping.

The motor driven metering pumps can handle the following substances:

  • Chemicals up to over 1,000 l/h
  • Disinfectants in potable water treatment
  • Disinfectants in cooling circuits
  • Flocculants in waste water treatment
  • Additives in the paper industry
  • Additives in plastic manufacturing

Impressive benefits

The pumps offer a very wide performance range. They also offer extremely accurate metering even under fluctuating pressure conditions (rigid characteristic curve). This results in reduced chemical consumption and precise process control.

Need a higher performance class? These pumps always deliver robust, low-cost power. They are also flexible: they can be controlled via the stroke length and motor speed, allowing them to be seamlessly integrated and/or retrofitted in automated processes. Energy consumption depends on the power required, not the other way round. And lastly, specially designed metering profiles allow optimum metering results.

Stay in control

The multi-layer safety diaphragm with diaphragm rupture indicator offers maximum safety. There is also an overload shutdown to protect the pump.

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

Products

Motor Driven Metering Pump alpha

Capacity range 1.0 – 30.6 l/h, 10 – 2 bar

The motor-driven metering pump alpha is the metering pump for liquid media and the optimum solution for simple applications. Robust, low-noise, chemical-resistant, with precise metering and good suction capacity. more

Your benefits

  • Precise metering and good suction capacity by soft controlled suction and compression strokes
  • Tough plastic housing – shock-proof and chemical-resistant
  • Suitable for higher viscosity media, thanks to spring-loaded valves
  • Low-noise operation

Motor Driven Metering Pump Sigma/ 1 (Basic Type)

Capacity range 17 – 144 l/h, 12 – 4 bar

The Sigma/ 1 Basic is an extremely robust motor-driven metering pump with patented multi-layer safety diaphragm for excellent process safety. It offers a wide range of power end designs, such as three-phase or 1-phase AC motors, even for Exe and Exde areas with ATEX certification. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated relief valve protects the pump against overloading
  • Reliable operation by bleed option during the suction process

Flexible adaptation to the process:

  • The entire Sigma product range is available as standard in a "Physiologically safe in respect of wetted materials" design.
  • Metering pumps with electro-polished stainless steel metering head and EHEDG certification enable them to be used in hygienically challenging applications
  • Adaptation to specific installation situations, as the "Liquid end on left" is available as standard

Motor Driven Metering Pump Sigma/ 1 (Control Type)

Capacity range 17 – 117 l/h, 12 – 4 bar

The Sigma / 1 Control can be used flexibly as an extremely robust motor-driven diaphragm metering pump. Excellent process safety and reliability is guaranteed with the patented multi-layer safety diaphragm. Highlights include removable control unit, adjustable metering profiles, as well as a variety of power end and control configurations. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated overload shut-down in the pump control to protect the pump from overloading and thus significantly reduced pressure surges caused by blockages. new
  • Integrated relief valve protects the pump against overloading and bleed option during the suction process ensures reliable operation
  • Metering reproducibility is better than ± 2% with a 30-100% stroke length adjustment range under certain defined conditions and with proper installation.

Flexible adaptation to the process:

  • Detachable operating unit with large illuminated LC display for outstanding user convenience
  • Metering profiles for optimum metering results

Motor Driven Metering Pump Sigma/ 2 (Basic Type)

Capacity range 50 – 420 l/h, 16 – 4 bar

Robust motor-driven diaphragm metering pumps, like the Sigma/ 2 Basic guarantee excellent process reliability with their patented multi-layer safety diaphragm. The diaphragm metering pump offers a wide range of power end versions, even for Exe and Exde areas with ATEX certification. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated relief valve protects the pump against overloading
  • Reliable operation by bleed option during the suction process

Flexible adaptation to the process:

  • The entire Sigma product range is available as standard in a "Physiologically safe in respect of wetted materials" design.
  • Metering pumps with electro-polished stainless steel metering head and EHEDG certification enable them to be used in hygienically challenging applications
  • Wide range of power end versions, also for use in Exe and Exde areas and different flange designs for the use of customised motors

Motor Driven Metering Pump Sigma/ 2 (Control Type)

Capacity range 61 – 353 l/h, 16 – 4 bar

The Sigma/ 2 Control is a robust motor-driven diaphragm metering pump with a patented multi-layer safety diaphragm for outstanding process safety and reliability. The integrated automatic overload shut-down offers further protection for the pump. Removable operating unit and adjustable metering profiles enable the versatile use of this pump. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated overload shut-down in the pump control to protect the pump from overloading and thus significantly reduced pressure surges caused by blockages. new
  • Automatic, integrated overload shut-down to protect the pump and bleed option during the suction process to ensure reliable operation

Flexible adaptation to the process:

  • Detachable operating unit with large illuminated LC display for outstanding user convenience
  • Metering profiles for optimum metering results
  • The entire Sigma product range is available as standard in a "Physiologically safe in respect of wetted materials" design and with electro-polished stainless steel dosing head and EHEDG certification for applications with strict hygiene requirements

Motor Driven Metering Pump Sigma/ 3 (Basic Type)

Capacity range 146 – 1,030 l/h, 12 – 4 bar

The patented multi-layer safety diaphragm for excellent process safety and reliability is just one feature of the extremely robust motor-driven diaphragm metering pump Sigma/3 Basic. It also offers a wide range of power end versions, such as three-phase or 1-phase AC motors, even for Exe and Exde areas with ATEX certification. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated relief valve protects the pump against overloading
  • Reliable operation by bleed option during the suction process

Flexible adaptation to the process:

  • The entire Sigma product range is available as standard in a "Physiologically safe in respect of wetted materials" design.
  • Metering pumps with electro-polished stainless steel metering head and EHEDG certification enable them to be used in hygienically challenging applications
  • Wide range of power end versions, also for use in Exe and Exde areas and different flange designs for the use of customised motors

Motor Driven Metering Pump Sigma/ 3 (Control Type)

Capacity range 182 – 1,040 l/h, 12 – 4 bar

The motor-driven diaphragm metering pump Sigma/ 3 Control guarantees excellent process reliability, thanks to its patented multi-layer safety diaphragm. Intelligent features, such as removable operating unit and adjustable metering profiles, as well as a variety of power end and control configurations, enable the versatile use of this pump. more

Your benefits

Excellent process safety and reliability:

  • In the event of an accident, the feed chemical does not escape to the outside nor into the pump's power end, thanks to the patented multi-layer safety diaphragm with optical (optionally electric) signalling
  • Integrated overload shut-down in the pump control to protect the pump from overloading and thus significantly reduced pressure surges caused by blockages. new
  • Integrated relief valve protects the pump against overloading and bleed option during the suction process ensures reliable operation

Flexible adaptation to the process:

  • Detachable operating unit with large illuminated LC display for outstanding user convenience
  • Metering profiles for optimum metering results
  • The entire Sigma product range is available as standard in a "Physiologically safe in respect of wetted materials" design and with electro-polished stainless steel dosing head and EHEDG certification for applications with strict hygiene requirements

Motor Driven Metering Pump Vario C

Capacity range 8 – 76 l/h, 10 – 4 bar

The motor-driven metering pump Vario C delivers a high level of process quality for continuous metering within simple metering tasks. It can be used, for example, in the metering of additives or flocculants in chemical metering. more

Your benefits

  • Excellent suction capacity, gentle metering stroke and consistently precise metering
  • Excellent process quality: Metering reproducibility is better than ± 2% within the stroke length adjustment range of 30 to 100%
  • Flexible adjustment of the pump capacity by means of the stroke length in 1% increments
  • Fibreglass-reinforced plastic housing
  • Good adaptation to the specific application, thanks to 4 different gear reduction ratios and 2 sizes of liquid ends in 4 material designs
  • Power end optionally available with three-phase or single-phase AC motor

Contact us

ProMinent Fluid Controls Ltd.


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