Differential pressure Switches Type-D

Product Description

Indfos D Series Differential Pressure Switches are produced using technology provided by Dresser Industries USA (ASHCROFT Division). These are sturdy, robust and precise devices for use in process industries.
Available in various ranges covering differential pressures from 25 mm to 42 kg/cm2 ranges, these switches utilize a dual diaphragm sealed piston sensor which is capable of withstanding extremely high static pressures and at the same time provides set point repeatability of ±1percentage. Diaphragms are available in Buna-N, Viton, Teflon, Kapton, Stainless steel & Monel construction making the switch suitable for virtually any process fluid.

Enclosures are available in weather proof (IP 66) and explosion proof (II A, B & C) versions and are die cast aluminium as a standard. A wide variety of 1 SPDT or 2 SPDT microswitches including hermetically sealed microswitches are available to meet different requirements of electrical ratings and environmental conditions.

D Series switches find applications in :

  • Off Shore Oil Rigs
  • Chemical & Petrochemical Plants
  • Power Plants
  • Steel Mills
  • Pulp & Paper Mills
  • Water & Sewage Treatment Plants
  • Other Corrosive/Explosive Environments
  • Nuclear Power Plants


Enclosure : Dia Cast Aluminium (Weather proof or Explosion proof)
Sensing Element : Diaphragm Sealed Piston (Buna-N, Viton, Teflon, Kapton, SS-316 or Monel)
Cable Entry : Rubber Plug suitable for cables from 6 to 14 mm dia
Mounting : Surface/ Panel
Max Ambient Temp. : -30°C to 65°C
Switch Type : 1 SPDT / 2 SPDT
Process Connection : 1/4″ NPT(F)