WATER INLET WITH PRESSURE RELIEF VALVE
One (1) 1-1/2″ (38 mm) water inlet that can be used for suction intake (drafting) or a pressurized intake shall be installed to supply the fire pump from an external water supply. A double female swivel with removable screen with plug and a hand primer shall be provided.
For drafting operations, the inlet shall be supplied with a hand primer. The inlet shall also be supplied with a PRV (pressure release valve) for pressurized water source operations.