Power station globe valve identified as high pressure valve from class PN160 to PN760 according to the requirements of power plant design. Normally they are used in the high pressure main streaming pipeline or high pressure bypass water feeding pipeline etc. The main function is to fully open&close or throttling working medium by electric actuator or handwheel. The sealing principle of pressrue seal seal valve is sealing surface tight off under pressure and they are widely applicated in petrochmical, thermal power plant. Both casted steel and forged steel are avaiable, such as carbon steel, alloy steel. CrMoV steel etc.