
Instruction Manual
D101957X012
V150 and V300 Valves
February 2011
7
5. If necessary, remove the bonding strap assembly before attempting to remove the packing (see figure 4).
6. Remove the packing flange and nuts and packing follower (keys 20, 40, and 17).
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.
7. Remove the packing parts (key 16 packing set includes additional key numbers) by making 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 drive shaft
or packing box wall; scratching these surfaces could cause leakage. Clean all accessible metal parts and surfaces to
remove particles that would prevent the packing from sealing. (Note: Metal packing parts are not provided in the
packing set).
Assembly
If the valve is equipped with the ENVIRO‐SEAL packing system, refer to the ENVIRO‐SEAL Packing System Rotary Valves
instruction manual (D101643X012) for assembly.
1. Install the new packing parts using the parts sequence shown in figure 3.
2. Insert the packing follower and packing flange (keys 17 and 40) and secure them with the packing follower nuts
(key 20). Tighten the nuts far enough to stop leakage during operating conditions.
Note
If the valve is equipped with a bonding strap assembly (figure 4), re‐install the assembly.
3. Reconnect the actuator and lever in accordance with the orientations that were noted in step 3 of the disassembly
procedures. If necessary, use figure 8 to identify the correct index marks.
4. If necessary, refer to the appropriate actuator instruction manual to complete actuator assembly and adjustment.
5. When the control valve is in operation, check the packing follower for leakage and retighten the packing follower
nuts (key 20) as necessary.
Ball Seal Replacement
Perform this procedure if the control valve is not shutting off properly, or if seal inspection is necessary. Remove the
actuator/valve assembly from the pipeline.
The actuator may remain mounted on the valve during the ball seal inspection and replacement procedures. Ball seal
assembly details (with key numbers) are also shown in figure 5. Upon inspection, if it is found that the ball, drive shaft,
or bearings need to be replaced, use this procedure to remove the ball seal. Then, proceed to the Bearing and Ball
Maintenance procedures to replace the ball, bearings, or shafts. Then return to this procedure and begin with the
assembly steps in the Ball Seal Replacement section.
During disassembly and re‐assembly procedures, handle the seal protector ring, seal, and other parts (keys 3, 11, 13,
and 37) carefully to prevent damage. A new gasket (key 15) is required whenever the seal protector ring (key 3) is
removed.
CAUTION
Due to the Vee‐ball shape, take care to never rotate either the front skirted edge of the ball or the circular back edge of the
ball through the ball seal at any time. The seal could be damaged.