Instruction Manual

Instruction Manual
D101554X012
Vee-Ball Valves
January 2015
28
Using a flat-end punch, drive the taper pin into the ball ear (or ball, for Micro-Notch constructions) and drive shaft until
solid heavy contact is felt. Make sure the taper pin spans the width of the ball.
Using a flat end punch, drive t he groove pin (key 7) into the ball and follower shaft until it is flat with the ball surface.
Installing the Drive Shaft in VTC Ceramic Vee-Ball Valves
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.
Figure 20. Taper Pin Installation for Fisher V150, V200, and V300 NPS 1, 1-1/2, and 2 Valves
A6033-1
DRIVE SHAFT
(KEY 6)
TAPER PIN
(KEY 4)
BALL
(KEY 2)
Figure 21. Taper Pin Installation for Fisher V150, V200, and V300 NPS 1 Valves with Micro-Notch Ball Construction
E0738
DRIVE SHAFT
(KEY 6)
WHEN FULLY SET, PIN
SHOULD BE FLUSH OR

0.06'
TAPER PIN
(KEY 4)
MICRO-NOTCH BALL
(KEY 2)
Valves with NPS 1 ceramic micro-notch balls use a screw with a threaded valve shaft to connect the ball to the shaft. An
adhesive is used to lock the screw in the valve shaft (keys 4 and 6, figure 22).