Swing Check Valve

We are offering pn16 ~ pn250 swing check valve is suitable for any pipeline in petroleum,chemical, pharmaceutical, chemical fertilizer, electric power industry, etc,whose
working pressure range from1.6 to 25 mpa, working temperature range of butterfly swing check valve from - 29 to + 550 ℃,and medium are varied like water, oil, steam, acid medium, etc.
performance data of cast iron swing check valve
design length flange
size pressure
temperature test
inspect
gbt12236 gb12221 jb79 gb9131 gbt13927
design pressure unit: mpa
pressure 1.6 2.5 4 6.4 10 16
strength 2.4 3.8 6 9.6 15 24
water seal 1.6 2.5 4 6.4 10 16
air seal 0.4-0.7
componentsmaterialfunction
body cover guide sleeve pin roll filler piece sealing
facing applicable
temperature applicable
medium
qt450 wcb 1cr13 reinforced flexible
graphite
1cr13soft graphite,
stainless steel
acid asbestos ptfe,
grooved metal gasket 1crstl
materialptfe
nylon ≦350 water.
Steam.
Oil
wcb ≦425
wc8 wc6 ≦540
wc9 wc9 ≦570
2gcr5mo 2gcr5mo ≦550
zg1cr18ni9ti zg1cr18ni9ti 1cr18ni9ti ≦200 nitric acid
acetic acid
zg1c18ni12mo2ti zg1c18ni12mo2ti 1c18ni12mo2ti ≦200 acetic acid
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