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      Burkert South Africa (PTY) Ltd
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      233 Albert Amon Road
      Millennium Business Park
      Meadowdale / Germiston

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      P.O. Box 26260
      East Rand
      1462
      Phone +27 11 574 6000
      Fax +27 11 454 1477
      E-Mail fnyrf.mn@ohexreg.pbz
      Website http://www.buerkert.co.za/
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      Northgate Estate

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Solenoid valves, servo-assisted, 2/2-way

In this case, a plunger-type solenoid is used as the pilot valve. The main valve seat is opened and closed by means of a diaphragm.

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With this, closing is performed both by the force of the compression spring and by the medium pressure. the medium pressure builds up again above the diaphragm through a restrictor port in the diaphragm or through a bypass channel. The system closes as the result of the higher area ratio (above the diaphragm).

Advantages:

  • Economical mechanical construction
  • Low electrical power consumption
  • Good closing-impact damping
  • Low pressure differential required.

Servo-assisted 2/2-way solenoid valve, normally closed, with diaphragm. Shown closed at left and open at right

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