diaphragm relief valve

The Type 630R is a general relief valve that comes in NPS 1 and 2 / DN 25 and 50 body variations. It is used at refineries, compressor stations and similar industries that require back pressure gas regulators to relieve pressures up to 250 psig / 17,2 bar.

Type 630R comes in oth low and high pressure constructions, with the high pressure esigned to withstand inlet pressure up to 550 psig / 37,9 bar and control pressures up to 250 psig / 17,2 bar. The low pressure constructions are designed with a larger diaphragm area and provide greater accuracy.