Relief
Fisher external and internal relief valves can be used in various vapor and liquid applications and are typically installed in ASME tanks, transport trucks, DOT cylinders, and piping applications.
 | Fisher H120 Series direct-operated relief valves have a present and pinned spring retainer. The inlet pressure registers directly on a spring-opposed poppet assembly. |
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 | Fisher H282 and H5112 Series internal spring relief valves can be used in the Combo Joe relief valve manifold or as separate units on stationary tanks. The valves are identical except for valve body materials. |
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 | Fisher H722 and H732 Series flush mounted internal relief valves are primarily used for truck transporting LP-Gas, anhydrous ammonia (NH3) or other compressed gases. |
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