Ball/Attenuator Installation And Removal Method - Fisher Vee-Ball V150 Instruction Manual

Vee-Ball Valves
June 2017
8. Make sure the sealing surface of the ball is not damaged while removing the follower shaft.
a. If a pipe plug (key 25) is installed, use a punch to drive the follower shaft (key 9) into the center of the ball.
b. If a pipe plug is not installed, use a piece of continuous threaded rod as a removal rod when moving the follower
shaft (key 9) into the center of the ball. Refer to the table 7 shown below for a description of the size threaded
rod needed. The length of the rod should allow easy working room from the valve body.
9. Remove the ball (key 2) by carefully removing the follower shaft and ball from the valve body.
10. Remove the bearings (key 10) by hand. If the bearings are tight in the valve body, then pull or drive them out with
a slight pressure.
11. Thoroughly clean surfaces of all parts that are to be re‐used or obtain replacement parts.
Assembly
1. Inspect all sealing surfaces to ensure they are in good condition and without scratches or wear.
2. Install bearings (key 10) by hand. The bearing flanged end should touch the body.
3. Installing the ball (key 2):
WARNING
The Vee‐Ball might be damaged if it is allowed to fall into the valve body. To avoid personal injury or damage to the sealing
surfaces, support the ball to prevent it from falling into or out of the valve body cavity.
Figure 18. Ball/Attenuator Installation and Removal Method
Note
For ease of assembly, the follower shaft (key 9) should be inserted into the ball before installing the ball in an NPS 3 valve without
ball/attenuator
28
BALL/ATTENUATOR
W6134
Instruction Manual
D101554X012