Instruction Manual

Instruction Manual
D100422X012
V250 Valve
September 2013
9
WARNING
The ball (key 2) closes with a shearing motion. To avoid personal injury, keep hands, tools, and other objects away from the
ball while stroking the valve.
CAUTION
Damage to the ball (key 2) may occur if the ball is not in the fully open position while the valve is being removed from the
pipeline. I f necessary, pressure the actuator temporarily to retain the ball in the open position while removing the valve
from the pipeline.
2. With the ball in the fully open position, unscrew the line bolts and remove the valve from the pipeline.
3. Unscrew the cap screws (key 15, figures 11 and 12 only) and remove the seal protector ring (key 14) or the flow ring
(key 14) from the inlet end of the valve. Then remove the O-ring (key 13), the ball seal (key 11), and the shim seals
(key 10). The flow ring construction will have no ball seal. For a dual seal construction, repeat this procedure on the
other end of the valve.
4. Thoroughly clean all metal surfaces. Check all parts for damage, and replace damaged parts with new parts if
necessary.
Figure 4. Ball Seal Detail
W3701-1*
SEAL
PROTECTOR
RING (KEY 14)
SHIM SEALS
(KEY 10)
BALL SEAL
(KEY 11)
VALVE
BODY (KEY 1)
O-RING
(KEY 13)
BALL
(KEY 2)
FORWARD
FLOW
Figure 5. Flow Ring Detail
FLOW RING
(KEY 14)
SHIM SEALS
(KEY 10)
VALVE
BODY (KEY 1)
O-RING
(KEY 13)
BALL
(KEY 2)
W3700-1*
FORWARD
FLOW