Differential Pressure Switches meet global standards.
September 21, 2010 -
CSA, UL, and ATEX certified, explosion-proof Models 220/240 are made of lightweight aluminum with weather-resistant 4½ in. gauge front. Piston-style Model 220 features working pressure of 4,000 psi and ranges from 0-5 to 0-100 psid, while diaphragm-style Model 240 provides working pressure of 1,500 psi and ranges from 0-20 in. H2O to 0-100 psid. Both IP65-rated indicating switches include over range protection and ½ in. FNPT cable or conduit entry.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Mid-West Instrument
6500 Dobry Rd.
Sterling Heights, MI, 48314
USA
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)
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