Gate and butterfly valves

[JohnWeal]

Good Morning,

For water distribution / water treatment works, we require some gate valves and significantly more butterfly valves.

When would a resilient seat or metal seat be specified? What determines which type of seat is required.

Regards

John

 

[ashtree]

John,

There have been previous discussions in this forum before about the preference for one or the other. Here is the link to one.

http://www.eng-tips.com/viewthread.cfm?qid=223891

Regards
Ashtree
"Any water can be made potable if you filter it through enough money"

 

[bimr]

See Hydrae's response:

http://www.eng-tips.com/viewthread.cfm?qid=256894