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DMH - Hydraulic Diaphragm Metering Pumps
DMH - Hydraulic Diaphragm Metering Pumps


​Robust design
Repeatable accuracy
+/- 1%
1:10 with stroke length adjustments, not including frequency control.


  • 0.07 to 2 x 278 GPH (up to 1052 l/hr)
  • 145 to 2900 PSI (see technical data)
  • Manual or 4-20mA stroke length control
  • Duplex option for doubled capacity
  • Standard diaphragm protection system on all pumps
  • Integrated frequency controller on select sizes (4-20mA input/output, pluse, remote start/stop - DMH AR)
  • Double diaphragm leak detection
  • Internal relief valve
  • Optional explosion proof motors
  • API 675 option (contact Grundfos for details)


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