- Model Series SR Type D - Spring Return Mechanical Diaphragm Pump



Each pump is fitted with a standard gearbox reduction system and with a vertical mounted B14 shaped electric motor in accordance with UNEL-MEC specifications. The motor power range is from 0.18 Kw up to 0.37 KW as the European standard: 3 phase voltages of 230/400V «a> 50.60Hz. 4 pole and 1 phase voltages of 230/50/60 Hz or 110/60 Hz.

As motors conform to UNEL-MEC specifications, there are many available alternative options, including different voltages, insulation classes and special explosion proof versions.

The reduction gearbox is of a standard endless screw plus worm-wheel type, supported by bearings, fully lubricated in an oil-bath.

The mechanism for the variation of the stroke length is a positive fore-stroKe, spring return type, that is operated by an eccentric.

  • Polyethylene tanks
  • Relief valves and back pressure valves
  • Safety relief valve
  • Injection valve
  • Foot valve
  • Pulsation dampeners
  • Calibration pot

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