Explosion-proof Differential Pressure Switches Meet Global Standards

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Mid-West Instrument announced their line of 220/240 explosion-proof, differential indicating switches. The 220/240 differential indicating switches are CSA-, UL- and ATEX-certified. As a condition of continuing certification, Mid-West Instrument is subject to un-announced audits by all certifying bodies. This applies to the entire assembly as mandated by the applicable hazardous locations standards.

Benefits of the 220/240 indicating switches include:

  • Its compact, lightweight aluminum design (or 316/316L)
  • Its weather-resistant, 4 1/2-inch gauge front
  • It is CSA certified and UL listed: class I
  • It has Division I Groups B, C and D classification
  • Its 1/2-inch FNPT Cable or conduit entry
  • Its five-year warranty
  • Its model 220-piston style
  • It offers working pressure to 4,000 PSI (275 bar)
  • It features ranges from 0-5 PSID to 0-100 PSID (0-0.35 bar to 0-7.0 bar)
  • Its model 240-diaphragm style
  • It has total separation between high and low side
  • It offers 1,500 PSI (103 bar) working pressure
  • It features ranges from 0-20”H20 to 0-100 PSID (0-50 mbar to 0-7bar)

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