Single pressure-relief valve installation must be set to operate at a pressure not exceeding the MAWP of the vessel, [1] Par. UG-134, but may be set to operate at pressures below the MAWP. The device ...

ASME Code pressure vessel and safety valve and are fully tested under power. Each one must pass Sussman's rigid quality control inspection before it is shipped. Sussman Electric Boilers - your ...