Instruction Manual
D101554X012
Vee-Ball Valves
June 2017
10
Disassembly
WARNING
Observe the steps in the WARNING at the beginning of the Maintenance section.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, shut off all pressure lines to the power
actuator, release pressure from the actuator, and disconnect the pressure lines from the actuator. Use lock‐out
procedures to be sure that the above measures stay in effect while you are working on the equipment.
2. Remove line bolting, remove the control valve from the pipeline, and place the valve/actuator assembly on a flat
surface with the seal protector ring facing up.
3. Remove the actuator cover. Take note of the orientation of the actuator with respect to the valve body and the
lever orientation with respect to the valve drive shaft (see figure 6).
WARNING
When the actuator is removed from the valve, the ball/shaft assembly may suddenly rotate, with a shearing, cutting
motion, which could result in personal injury. To avoid injury, carefully rotate the ball to a stable position after the actuator
is removed.
CAUTION
When removing the actuator from the valve, do not use a hammer or similar tool to drive the lever or actuator off the valve
shaft. Driving the lever or actuator off the valve shaft could damage the ball, seal, and valve. If necessary, use a puller to
remove the lever or actuator from the valve shaft. It is okay to tap the puller screw lightly to loosen lever or actuator, but
hitting the screw with excessive force could damage the ball, seal, and valve.
4. Remove the clamped lever (do not loosen the actuator turnbuckle adjustment), remove the actuator mounting
screws and nuts (keys 23 and 24), and remove the actuator. (If necessary, refer to the actuator instruction manual
for assistance.)
5. If applicable, remove the bonding strap assembly before attempting to remove the packing (see figure 3).
6. Remove the packing follower nuts and packing follower (keys 17 and 20). For alloy packing constructions, the
packing follower (key 17) and a separate packing flange (key 40) must be removed if present.
If the valve is equipped with the ENVIRO‐SEAL packing system, refer to the ENVIRO‐SEAL Packing System for Rotary
Valves instruction manual (D101643X012
) for disassembly.
WARNING
Personal injury could result from packing leakage. Do not scratch the drive shaft or packing box wall while removing
packing parts in the following procedure.
7. Remove the packing parts (see figure 5, keys 16, 17, 35, and 39 depending on construction) using a formed wire
hook with a sharp end. Pierce the rings with the sharp end of the hook in order to remove them. Do not scratch the
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