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

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