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Recent content by passist
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Ball Valve Inside Groove
Men8th, here is the link to a technical bulleting covering the seat; http://valveproducts.metso.com/documents/neles/TechnicalBulletins/en/1D21EN.pdf ( page 5, seat C ) " The bellows acts as a spring and seal, and also increases the seat pressure at higher pressure differentials. " A normal...- passist
- Post #6
- Forum: Valve engineering
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Ball Valve Inside Groove
This is a ball valve seat. The grooves have at least two purposes; 1. The seat acts as a spring, when the 2- piece valve body is tightened, both ( there should be another seat on the other body half ) seats are somewhat compressed, the other end against the valve body, the other end at the...- passist
- Post #4
- Forum: Valve engineering
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Discussion on valve leakage rates
I am a valve technician, my job is to assemble, and inspect valves. Most of the valves in the company I work for are quarter turn eg. Ball, V-Ball, butterfly, and a few other ones. For a while now I've been struggling to understand why the requirements often are somewhat odd. For example when...- passist
- Thread
- Replies: 1
- Forum: Valve engineering
