Fisher™ H120 Series Relief Valves

Fisher Type 289P pilot-operated relief valve is used to provide over pressure protection for downstream systems suitable for service on natural gas, air, propane, or any other operating medium not corrosive to the internal parts. Smooth opening action minimizes system pressure surges during emergency action.

Fisher Type EZR pilot-operated, pressure relief valve or backpressure regulator is typically used in city gate and district stations as a relief valve for overpressure protection, or in commercial and industrial applications as a backpressure regulator. It provides smooth, quiet operation, tight shutoff, and long life, even in dirty service.

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

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.