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What is the main parts in the Ball Valve?
Bonnet
body
stem
gland
seat ring
ball , seat , stem , valve body , bonnet ,
Seat
Ball
Body
Bonnet
Seat
Seals
Packings
Stem
1. Ball
2. Seat
3. Stem
4. Seat retainer
5. Body
6. Bonnet
7. Packings & Seals
8.Packing Follower
1 body,
2 seat,
3 ball,
4 bonet,
5 stem
1) Body
2) ball
3)Shaft
4)packing
5)seals
Ball valve is one of quarter-turn valves
Main complaints: