Chemical Feed Solutions Ltd Chemical Feed
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ProMinent® Sigma/2 Motor Driven Metering Pump


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.

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.

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/2 brochure
TDS Click here to download the TDS information


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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
E-mail: enquiries@chemfeed.co.nz
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Master Electricians

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