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MD Series Air Relay Pressure Switch

Brand: Orion Instruments

MD Air Relay switches have been designed for zone 0 applications that require robust, in adverse conditions. 

By using appropriate capsules and pneumatic valve, MD series air relay switches can used for hazardous applications.
Features
  • Robust
  • Wide scale for easier setpoint (optional)
  • Enclosure protection: IP66 standard
  • Customized arrangements for switching values on request
  • Field adjustable
  • Accuracy: ±2% Full Scale

Specifications

Accuracy

  • ± 2 % of Full Scale Range

Applications

  • Boilers & Compressors
  • Burners & Furnaces
  • Chemical Industry
  • Fire Protection Systems
  • Glass & Metal Industries
  • Hydraulic, Steam & Gas Turbines
  • Machine Tools
  • Natural Gas, LPG Storage & Transportation
  • Power Generation Equipment
  • Railway Braking Systems
  • Steel Industry
  • Sugar & Paper Mills
  • Surgical Gas, Breweries, Milk Industries
  • Tyre Industry
  • Water Treatment

BSP Connection

  • 1/4” BSP Female

Cable Entry

  • 1/8” BSP Female Air Inlet & Outlet Pressure Supply 7 bar, Max.

Diaphragm Material

  • 316L Stainless Steel
  • Neoprene
  • Teflon

Differential Pressure

  • psi: 0.29 to 11.60 (kPa: 2 to 80, bar: 0.02 to 0.80)

Enclosure, Body Material

  • Die Cast Aluminum
  • Pressure Housing: 316 Stainless Steel

Environmental Protection

  • IP66

Media

  • Air

NPT Connection

  • 1/4” NPT Female

O-Ring Material

  • Teflon

Operating Pressure

  • Maximum

Pressure Type

  • Differential

Process Connection Material

  • 316 Stainless Steel

Process Temperature

  • Media Temperature: Non-Metallic Diaphragm, Max.

Repeatability

  • Setpoint Repeatability: ± 2 % of Full Scale Range

Ring Material

  • Steel Ring: 316 Stainless Steel

Set Point - Decreasing

  • bar: 0.067 to 25
  • kPa: 7 to 2,500
  • psi: 0.97 to 362.6

Set Point - Increasing

  • bar: 0.067 to 25
  • kPa: 7 to 2,500
  • psi: 0.97 to 362.6

System Pressure

  • bar: 0 to 35
  • kPa: 0 O 3,500
  • psi: 0 to 507.63

Valve Type

  • Normally Closed
  • Normally Open
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