American Standard lift plug valve

First, the US standard-rising American standard plug Usage lift type plug for nominal pressure CLASS150-1500LBS, pipeline operating temperature petroleum, chemical, pharmaceutical, fertilizer, power industry, etc. -29 ~ 550 ℃ various working conditions , cut off or connected piping media. Second, American Standard lift type plug Features 1, reasonable structure, reliable sealing, excellent performance and attractive appearance. 2, the valve opening and closing process is in a state from the sealing surface will not cause wear of the sealing surfaces. 3, two-way flow, the installation more convenient. 4, parts materials and flange dimensions according to the actual working conditions or user requirements reasonable matching, to meet the requirements of various engineering. Third, the American Standard lift type plug closing the valve opening and closing process works: When you open the valve, the first rotation of the hand wheel, make plug rising to the surface from the seal, then rotate the handle 90 °, so that the channel and the valve plug The communication channel to reach the open goal. The valve closing process is to rotate the handle 90 °, so that the vertical channel of the channel and the valve plug, and then rotate the hand wheel, make plug down to seal. See: http: //www.zgchuanhu.com/xsf.html plug http://www.chuanhuvalve.com/xuansaifa/xuansaifa.asp plug