J961, J561, J461 (W, Y, H) - PN 100, 160, 200, 250, 320P54, P55, P57-100V, 140V, 170V electric high-temperature and high-pressure welding globe valves are suitable for cutting and connecting pipeline media on various systems of petroleum, chemical, thermal power, and hydraulic systems with nominal pressures of PN1.6~32.0Mpa and P54/100V-P57/170V, working temperatures of 540C (including P57/170V working temperature of 570C). Applicable media include water, steam, oil, acidic media, etc.