ProMinent Fluid Controls, Inc.

ProMinent Fluid Controls, Inc.

136 Industry Drive 15275 Pittsburgh, PA USA

Sigma/ 2 Plunger Metering Pump

Sigma/ 2 Plunger Metering Pump

The Sigma/ 2 motor plunger metering pump with the solenoid diaphragm metering pumps type Sigma/1, Sigma/2 and Sigma/ 3 make up a universal product family. In this way the performance range covers 2 to 1,030 l/h, with one standard operating concept, control concept and spare parts management. All three pumps are available in the basic version without their own internal electronic system and as the microprocessor version for a fast and reliable adaptation to changing dosage requirements.


  • High processing quality: Reproducibility of dosage better than ±1%

  • Simple operation: Immediate adjustment and monitoring of dosage performance in full text via the large illuminated LC display (control version)

  • Smooth connection to complex processing management systems through optional fitting with PROFIBUS® DP interface (control version)

  • Simplified spare parts management and less stock storage with the same availability of pumps within the Sigma product family

  • Less training expenditure for operators when using the Sigma product family because the use the same operating mode

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