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HM Series Hydraulic Pressure Switch

Brand: Orion Instruments

HM series pressure switches have a machined aluminum powder coated enclosure and are recommended for manifold mounting hydraulic applications. 

When fitted with different types of chemical seals these can also be used for various processes.

The repeat accuracy is better than ±1% Full Scale. 

A connector to DIN 43650 is provided for wiring.
Features
  • Compact Lightweight 
  • Three mounting styles 
  • Lockable protective cap to avoid tampering (optional) 
  • Choice of wetted parts to suit working media 
  • Electrical rating: 5 A, 250 
  • Vac; 0.2 A, 250 Vdc (res.)

Specifications

Accuracy

  • ± 1 % of Full Scale Range

Applications

  • Compressors
  • Hydraulic Power Packs Application
  • Manifolds/Stacks with Sandwich Plates

Differential Pressure

  • psi: 72.52 to 580.15 (kPa: 500 to 4,000, bar: 5 to 40) - Max.

Electrical Connectors

  • DIN 43650 Connector for Wiring

Electrical Rating

  • 0.2 A at 250 Vdc - Resistive
  • 5 A at 250 Vac

Enclosure, Body Material

  • Aluminum
  • Brass
  • Steel

Environmental Protection

  • IP65

Operating Pressure

  • psi: 2,900.76 to 5,801.51 (kPa: 20,000 to 40,000, bar: 200 to 400) - Max.

Piston Material

  • Carbon Steel (EN 8)
  • Stainless Steel

Seat / Seal Material

  • Base/Housing Seal: Nitrile
  • Piston/Housing/Basel Seal: Viton

Set Point - Decreasing

  • bar: 3 to 400
  • kPa: 300 to 40,000
  • psi: 43.51 to 5,801.51

Set Point - Increasing

  • bar: 3 to 400
  • kPa: 300 to 40,000
  • psi: 43.51 to 5,801.51

System Pressure

  • bar: 0 to 400
  • kPa: 0 to 1,500
  • psi: 0 to 5,801.51

Wetted Materials

  • Base: Brass
  • Base: Mild Steel
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