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CRNs, Maximum Allowable Working Pressure (MAWP) and Design Pressure - Cammar Corporation - CRN registration
Canadian Registration Numbers (CRNs) are issued by regulators before pressure equipment is sold or used in Canada. Though there are exceptions, CRN registration is generally needed for pressure equipment that contains expansible fluids at pressures greater than 15 psig. Expansible fluids include vapors, gases, and fluids that expand to a gas or vapor when exposed to …