Casing relief valve is a direct acting spring loaded diaphragm type relief valve.
Fire pump casing relief valve.
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.
The model 55l is normally held closed by the force of the compression spring above the diaphragm.
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.
The cla val model 55l 60 ul listed fm approved pressure relief valve is a direct acting spring loaded diaphragm type relief valve.
This pressure relief valve may be installed in any position and will open and close within very close pressure limits.
The 3 4 cla val model 55l 60 is a ul listed and fm approved direct acting spring loaded diaphragm type pressure relief valve which can be installed in any position and is designed to open and close within very close pressure limits.
The bottom plug may be removed and installed in the inlet to convert it to an angle pattern flow path.
Just a simple tap on the relief valve should do the trick.
This casing relief valve may be installed in any position and will open and close within very close pressure limits.
Including casing relief valve pressure maintenance pump controller fire pump unit responsibility the fi re pump unit consisting of a pump driver and controller shall perform in.
Complete with hose valves for outdoor use or flow meter main relief valve and waste cone open or closed pressure maintenance pump.
When the controlling pressure applied under the diaphragm exceeds.
Cla val manufactures a complete line of pressure relief valves specially designed for offshore fire protection applications.
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 fire pump casing relief valve plays a crucial part in the importance of circulation.
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Cla val 55l 60 3 4 fire pump casing relief valve ul fm 20 200 psi.