Why is babbitt alloy generally chosen for the sealing surfaces of ammonia valves?

2017-08-22View Original

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Why is babbitt alloy generally chosen for the sealing surfaces of ammonia valves? Can’t we use stainless steel or cemented carbide?

Reply #22017-08-22

Also, there are no particular requirements regarding the material of the valve body, right? Which is more suitable, WCB or LCB?

Reply #32017-08-22

I would like to know too; please have a professional explain it

Reply #42017-08-22

Stainless steel and cemented carbide are too hard and prone to leakage; babbitt is slightly softer and provides better sealing.

Reply #52017-08-22

LCB is definitely more suitable than WCB

Reply #62017-09-20

This post was last edited by City Boy on 2017-9-20 at 18:05; for high-pressure applications, J41Y cemented carbide is generally used

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Why is babbitt alloy generally chosen for the sealing surfaces of ammonia valves?

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