Pressure Switch VM Series Delta Mobrey

The unit is manufactured, checked and supplied in accordance with our published specification, and when installed and used in normal or prescribed applications, with the lid in place and within the parameters set for mechanical and electrical performance, will not cause danger or hazard to life or limb.

The model VM Pressure Switch is suitable for setpoints between 0 and 700 bar with maximum working pressures up to 1000bar.

The VM Series Pressure Switch is designed with OEM users in mind and offers users a simple, compact, robust and ATEX Ex d approved Switch.

  • Ranges available from 0 to 700bar
  • Weatherprrof IP66 enclosures stainless steel
  • ATEX Ex d Flameproof models available
  • Environmentally and Hermetically sealed switch options
  • Set-point adjustable over the full range against a calibrated scale with tamperproof adjuster

Pressure Switch VM Series:

  • Compact and rugged design
  • ATEX Flameproof EExd IIC 2 GD
  • Stainless steel enclosure as standard
  • All welded construction for process connection and diaphragm – reduced risk of leakage under extreme conditions
  • Ranges available between 0.25bar/4psi and 700bar/10,000psi
  • Variety of wetted parts including NACE MR-01-75 compatible option
  • Field adjustable set point


Designed for volume manufacture, the VM2/4 switch is ideally suited to meet the requirements of OEM manufacturers of:

  • Wellhead control safety shutdown systems
  • Water or gas deluge fire protection systems
  • Fuel and lubrication systems, as found on gas turbines, compressors and other rotating machinery
  • Valve Actuators

The choice of models available ensures the VM Series is suitable for use in:

  • General purpose applications
  • Aggressive outdoor atmospheres, eg: marine or coastal environments
  • Hazardous areas

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Enclosure options:

  • Weatherproof IP66/NEMA 4X
  • Weatherproof IP66/flameproof EEx IIC 2 GD
  • T6 (Tamb –60 Deg C to + 65 Deg C)
  • T5 (Tamb –60 Deg C to + 80 Deg C)

Wetted parts options: Nickel alloy (Monel) diaphragm and process connection for NACE MR-01-75 – all welded construction.

Process connection: Rc 1/4 (1/4” Bsp tr int) or 1/4 ”NPTF (other sizes via adaptors only)

Unit weight: 1.5kg/3.3lbs approx

Set point Repeatability: +/- 1% of adjustable range

Ambient temperature range:

  • -40 to +80 deg C (-40 to +176F) intermittently down to -60 deg C (-76 deg.F) - ATEX (VM2)
  • 40 to +85 deg C (-40 to +185F) for the weatherproof version (VM2)
  • -25 to +60 deg C (-13 to +140F) Limited by materials used in sensing element (VM4 only)

Download Data Sheet: Pressure Switch VM Series