butterfly valve
MaterialWorking conditionMain medium
TypeStandardPN / MPat / ℃
Grey ironHT200≤1.6≤200Water, steam, oil
Ductile ironQT450≤4.0≤350
Fine steel casting ironWCB≤16≤450
Acid resisting steel with nickle, chromium, titanium304≤6.4≤200For caustic substance like nitric acid
—100 ~ —196Ethylene etc, low temperature medium
≤600High temperature steam, gas etc
Acid resisting steel with nickle, chromium, molybdenum316≤20≤200Acetic acid etc
Bronze≤1.6≤200Water, steam, gas etc