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

Main parts are 1. Body 2. Body Connection (flanged, welded or sandwich type) 3. Ball (floating or fixed) 4. Seat 5. Plug

Ball valve is one of quarter-turn valves

Main complaints:

1. Body
2. Seat
3. Floating ball
4. Stem