Bellow control valve
For hazardous gases (such as chlorine gas, hydrogen) and strong acid and base medium (such as sulphoxide solution, concentrated nitric acid, aqua regia), Wuxi Lunqu Electric Manufacture Co., Ltd. specially designs F46 and HC type of produces bellow control valve. As for those hazardous gas with low temperature and little differential pressure and strong acid and base medium, the bellow shall be used while as for those occasions with high temperature, penetrability and differential pressure, HC bellow shall be used.
Product characteristics and operation range:
⊙Operating temperature: -40℃~+500℃
⊙Nominal diameter: DN20~DN200(3/4”~8”)
⊙Operating pressure: PN1.6、4.0、6.3Mpa ( ANSI150、300LB)
⊙The valve body of bellow seal control valve adopts the way of using high pressure shooting technique to place it underneath the valve body and sleeve (cage type). Bellow can prevent the valve rod from being eroded, to isolate the valve lumen and the air (ensure zero leakage).