Mid-West Instrument’s New Explosion- Proof Differential Pressure Switches Meet Global Standards


Mid-West Instrument, a 30 year leader in explosion-proof, differential pressure gauge and switch design announces the firm’s new line of 220 / 240 Explosion proof, differential indicating switches. These extremely light-weight and ruggedly compact family of indicating switches set a new standard of excellence in Explosion- Proof design.

The new 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:

· Compact, Lightweight Aluminum (or 316/316L )

· Weather resistant, 4 ½” gauge front

· ATEX Ex d IIB+H2 ExII 2GD IP65 classification

· CSA Certified & UL Listed: Class I,

Division I Groups B, C, & D, classification

· ½” FNPT Cable or conduit entry

· Over range protection & 5 year warranty

Model 220-Piston Style

· Working pressure to 4000 PSI (275bar)

· Ranges from 0-5 PSID to 0-100 PSID (0-0.35 bar to 0-7.0 bar)

Model 240-Diaphragm Style

· Total separation between high & low side

· 1500 PSI (103 bar) working pressure
Ranges from 0-20”H20 to 0-100 PSID (0-50 mbar to 0-7bar)


• Accuracy - 2%* • Dial Size - 4 1/2”
Be the first to review this product
Add your review: