EU 20 70.0.190.0026 – Safety Relief Valve, ¾” NPT Pressure relief valve with cylindric thread to be used in connection with the lower check valve (ST 20 71.0016) Tightness assured by bonded seal.
Setting point: 17,65 bar.
71.0.190.0016 – ST 20 – Back Check Valve 1 ¼” NPT
Both are used in combination for the 450 kg Cylinder