chemical pump / electric / diaphragm / industrial
Sigma/2 (Basic type) ProMinent GmbH



  • Media:

    for chemicals

  • Operation:


  • Type:


  • Domain:


  • Other characteristics:

    ATEX, metering

  • Flow:

    Min.: 50 l/h (13.2086 us gal/h)

    Max.: 350 l/h (92.4602 us gal/h)

  • Pressure:

    Min.: 4 bar (58.015 psi)

    Max.: 16 bar (232.06 psi)


Sigma/ 2 Motor Diaphragm Metering Pumps compose a continuous product line, covering the capacity ranges from 17 to 1.030 l/h at uniform operation and control conception and spare parts management.

Application Areas
-Quantity-proportional chemical addition in water treatment.
-Measurement-dependent chemical addition.
-Time-controlled chemical addition in cooling water circuits.
-Pulse-controlled dosing when bottling different volumina.

Features Basic type (S2Ba)
-Broad selection of drive versions
-Protection class IP 55
-Manual stroke-length adjustment