Processing Magazine

Explosion-proof differential pressure switches CSA, UL and ATEX certified

May 4, 2006

New lightweight and compact 220/240 explosion-proof, differential indicating switches are CSA, UL and ATEX certified. As a condition of continuing certification, Mid-West Instrument is subject to unannounced audits by all certifying bodies. This applies to the entire assembly as mandated by the applicable hazardous locations standards. Switches are weather-resistant with a 4-½ gauge front, ½-inch FNPT cable or conduit centry, over range protection and a five-year warranty. Model 220-Piston Style has a working pressure to 4,000 PSI, and ranges from 0-5 PSID to 0-100 PSID. The Model 240-Diaphragm Stylefeatures 1,500 PSI working pressure, and ranges from 0-20” H20 to 0-100 PSID.