Instruction Manual

Instruction Manual

D101554X012

Vee-Ball Valves

January 2015

Figure 18. Ball/Attenuator Installation and Removal Method

W6134

BALL/ATTENUATOR

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

Carefully install the ball into the valve body cavity.

After you have installed the ball (key 2) into the valve body assembly, firmly support the ball while installing the shafts.

4. Installing the follower shaft (key 9):

D For NPS 1 through 2 valves: The follower shaft (key 9) should already have been inserted into the ball before the ball

was put into the valve body. Insert the follower shaft (key 9) into the valve body bearing (key 10).

Note

All NPS 1 Micro-Notch constructions use a one piece shaft. They do not have a follower shaft.

5. Installing the Drive Shaft for Valves with Taper Pins

CAUTION

The drive shaft must be used with the correct Vee-Ball. Refer to the tag (see figure 13) attached to the Vee-Ball and to the

drive shaft.

Failure to use the correct Vee-Ball/ shaft combination may result in the ball not being in the position indicated by the slash

mark on the end of the shaft. If the ball is not properly aligned with the slash mark, the valve will not function correctly and

seal damage may result.