The valves are designed for the media like hazardous gas (chlorine and hydrogen) and strong acid, strong alkali (such as sulfoxide solution, concentrated nitric acid, aqua regia). Wuxi Lunqu Mechanical and Electrical Manufacturing Co., Ltd specially designs and manufactures bellow regulating valves. For the media like hazardous gas, strong acid and strong alkali with low temperature and small pressure difference, corrugate pipes should be used. Otherwise, for the places with high temperature and extremely high penetration and big pressure difference, HC type corrugate pipes should be used.
Characteristics and Operation range
⊙operation temperature: 40℃~+500℃
⊙Normal size: DN20~DN200(3/4”~8”)
⊙Operation pressure: PN1.6、4.0、6.3Mpa ( ANSI150、300LB)
⊙The body of corrugate pipe sealing regulating valve adapts high pressure molding technique to be injected into the WCB、CF8 valve body and tube (cage). The corrugate pipe can ensure that the valve stem free from corrosion, and keep the air out of the inside of valve (ensure zero leakage).