Fire Pump Casing Relief Valve Purpose

750 series pressure relief valves also are used to relieve excess pressure as well as to maintain constant pressure at the pump discharge.

Fire pump casing relief valve purpose. The bottom plug may be removed and installed in the inlet to convert it to an angle pattern flow path. Casing relief valve is a direct acting spring loaded diaphragm type relief valve. When the controlling pressure applied under the diaphragm exceeds. 55l 60 pressure relief valve pump casing relief valve 55l 60 pressure relief valve pump casing relief valve.

This valve needs to be piped into the discharge side of the fire pump but it must be installed before the fire pump check valve. Cla val manufactures a complete line of pressure relief valves specially designed for offshore fire protection applications. Shut the drain valve. Nfpa 20 compliance for pressure relief valves prv a pressure relief valve is defined by nfpa 20 3 3 67 5 relief valve as a device that allows the diversion of liquid to limit excess pressure in a system in general a prv is a safety device designed to protect a pressurized system during an overpressured event.

The 55l 60 is a direct acting spring loaded relief valve that can be installed in any position in a fire sprinkler piping system to prevent pressure build up that could damage the pipeline. Complete with hose valves for outdoor use or flow meter main relief valve and waste cone open or closed pressure maintenance pump. The model 55l is normally held closed by the force of the compression spring above the diaphragm. An overpressured event.

Generally the layout will be the pump suction or inlet the pump discharge or outlet and then you must pipe onto the fire pump discharge piping a casing relief valve. Just a simple tap on the relief valve should do the trick. A fire pump is used to supply fire protection systems with pressurized water to ensure the smooth operation of the system s extinguishing devices. The cla val model 55l ul listed fm approved pressure relief valve is a direct acting spring loaded diaphragm type relief valve the valve may be installed in any position and will open and close within very close pressure limits.

This casing relief valve may be installed in any position and will open and close within very close pressure limits. Contact us today to learn more. The fire pump casing relief valve plays a crucial part in the importance of circulation. Check packing bearings casing relief valve and general operation.