... 15023.Standards: ,ISO,ASME4.Structure: safety valve5.Connection mode: Flange,Thread or Union Connection6.Working Pressure: 42MPa(6000psi)~105MPa(15000psi) Working principle ... abroad. Now, we can provide with Gate Valve, Choke Valve, Check Valve, Retaining Valve, Shutoff Valve, High Pressure Active Elbow, Well Head Equipment and so ... queries, pls feel free to contact us! Stainless steel safety valve