Pressure Relief Valve Aluminum Cover with 1½“ BSP/NPT Female Threaded drain portWhen network pressure exceeds set point, valve opens by itself quickly and protects system by releasing over pressurePressure Relief setting : 1.5 kg/cm2 to 5.5 kg/cm2 Other Products Ring End Cap Fertilizer Tank Riser Pipe 32 MM TEE Pepsi End Cap Ring Takeoff 32 MM JOINER Pepsi Joiner 32 MM BALL VALVE Header Assembly