Instruction Manual

Instruction Manual
D101554X012
Vee-Ball Valves
January 2015
21
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 13. Informational Tag
GE11636-A
FOR STANDARD RIGHT/LEFT HAND BALL
GE11637-A
FOR OPTIONAL LEFT HAND B ALL
CAUTION
Make sure the drive shaft is free of oil or grease, otherwise the taper pin or taper key will not seat properly. Failure to
properlysetthetaperpinortaperkeycouldresultinitcoming loose while in service. Loosening of the taper key in service
could result in improper valve function and equipment damage.
a. Insert the drive shaft into the valve body bearing (key 10), and into the ball ear. Align the hole in the drive shaft
with the holes in the ball.
b. Insert the taper key into the ball and drive shaft as shown in figure 14.
D Installing the Taper Key
Current standard construction materials for all NPS 3 through 12 valves require t he taper key (key 4, figure 14) to be
tack welded in place after properly seating, using the following procedure. Use standard welding preparations when
preparing parts for reassembly.
CAUTION
Make sure the drive shaft (key 6) is free of oil or grease, otherwise the taper key will not seat properly. Failure to properly
set the taper pin or taper key could result in it coming loose while in service. Loosening of the taper key in service could
result in improper valve function and equipment damage.