Classification of the valve
- Dec 28, 2018 -

By main parameters


According to the nominal pressure


(1) vacuum valve: working pressure lower than normal atmospheric pressure of the valve.


(2) low pressure valve: refer to valves of nominal pressure PN ≤ 1.6Mpa.


(3) pressure relief valve: refer to nominal pressure PN 2.5Mpa, 4.0Mpa, 6.4Mpa valve.


(4) high pressure valve: the nominal pressure PN 10.0Mpa~80.0Mpa valve.


(5) high pressure valve: the nominal pressure PN ≥ 100.0Mpa valve.


Working temperature


(1) cryogenic valve: valve used in medium temperature t<-101 ℃.


(2) temperature valve: for medium working temperature-29 c <t<120 valves.


(3) temperature valve: valve used for medium temperature 120 ¡æ <t<425 ¡æ.


(4) high temperature valves for medium working temperature t>425 valve.


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