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 32 MM MTA 32 MM BALL VALVE Elbow (Trigger) TEE 32 MM JOINER MS ROD (Stake) Y DRILL BIT Foot Batten Assembly 32 MM ELBOW