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Valve body materials introduction 2021/10/15 10:28:51

https://www.eathu.com/u-flange-type-butterfly-valve.html

 

1. Grey cast iron: for low-pressure valves with operating temperature between-15~+ 200℃, nominal pressure PN≤1.6MPa.

2. Blackheart malleable cast iron: for medium and low-pressure valves with operating temperature between-15~+ 250℃, nominal pressure PN≤2.5MPa.

3. Ductile iron: for medium and low-pressure valves with operating temperature between-30~+ 350℃, nominal pressure PN≤4.0MPa.

4. Carbon Steel (WCA, WCB, WCC), suitable for medium and high-pressure valves with operating temperatures between-29~+ 425℃,

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