Fisher Type 630 Big Joe regulators are direct-operated, spring-loaded, pressure reducing regulators. They are available in NPS 1 and 2 / DN 25 and 50 body sizes, and they are designed for maximum inlet pressures to 1500 psig / 103 bar and outlet pressures from 3 to 500 psig / 0.21 to 34.5 bar. Type 630 can be used with natural gas, air, or a variety of other gases for such applications as first-stage farm-tap regulators or high-pressure industrial regulators. Type 630 can be converted in the field to a relief valve or is available as the Type 630R relief valve / backpressure regulator.
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