Chemical Feed Solutions Ltd Chemical Feed

ProMinent® Sigma/3 Motor Driven Metering Pump

The robust pump for safe and reliable use

The Sigma/ 3 diaphragm metering pump together with pumps of type Sigma/ 1 and Sigma/ 2 represent an integrated product range. They cover the capacity range from 17 to 1,030 l/h, with a consistent operating concept, control concept and spare parts management. A wide range of drive versions are available, including some for use in Exe and Exde areas with ATEX certification.

Robust motor-driven diaphragm metering pumps, like the Sigma/ 3 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.

The Sigma/ 3 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.

Your benefits with both the basic and control version:

  • 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
Extra benefits of the Control Version:
  • Automatic, integrated overload shut-down to protect the pump and bleed option during the suction process to ensure reliable operation
  • Detachable operating unit with large illuminated LC display for outstanding user convenience
  • Metering profiles for optimum metering results
PDF Click here to download the Sigma/3 brochure
TDS Click here to download the TDS information


Chemical Feed Solutions Ltd
6a Enterprise Drive Henderson Auckland

PO Box 104-055, Lincoln North, Waitakere 0654
Phone: 09-837-6075
Fax: 09-837-6075
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Master Electricians

Chemical Feed Solutions is a member of the Electrical Contractors Association of New Zealand