Fisher™ 289 Series Relief Valves or Backpressure Regulators

Fisher Type 63EG pilot-operated pressure relief valves may be used for both liquid and gas service.Type 63EG is also suitable for throttling backpressure or bypass applications. The main valves in both constructions use quick-change trim package for fast maintenance.

Type ACE95 vapor saver is a pilot-operated valve used for accurate pressure control on low pressure blanketing systems. The unit is stainless steel actuated by a very large rolling diaphragm actuator and can accurately control the blanketing pressure by a single adjusting screw.

Fisher Type H120 direct-operated relief valve has a preset and pinned spring retainer. The inlet pressure registers directly on a spring-opposed poppet assembly, which includes a Nitrile (NBR) disk. When the inlet pressure increases above the spring setting, the poppet and disk assembly is pushed away from the metal seat.

1805 Series relief valves are designed for use in farm tap applications where a relief valve is needed between the first-stage and second-stage regulators.1805 Series relief valves are suitable for natural gas,air, propane, or any medium compatible with the internal valve parts.Relief pressures range from 5 to 125 psig / 0,34 to 8,6 bar. Maximum pressure, including buildup, is 150 psig / 10,3 bar