Table of Contents
Advertisement
V280 Valve
August 2019
If necessary, use a wheel puller to remove the lever or actuator from the valve drive shaft. Tap the wheel puller screw
lightly to loosen the lever or actuator. Do not hit the screw with excessive force. Using excessive force could damage the
ball, seal, and valve.
5. Loosen the actuator lever locking device cap screw. Loosening the lever turnbuckle adjustment is not necessary
during disassembly. When remounting the actuator, the turnbuckle will be used for actuator adjustments.
R
6.
emove the actuator mounting screws, bolts, or nuts while properly supporting the actuator and separate the
actuator and mounting bracket from the valve.
7. Slide the lever along the valve drive shaft (key 20) while removing the actuator from the valve.
8. If necessary, remove the bonding strap assembly, shown in figure 2 from the valve before removing the packing
parts.
9. Remove the packing follower nuts, packing flange, spring pack (only applicable to ENVIRO-SEAL), and packing
follower (keys 101, 102, and 114).
10. Remove the packing parts:
a. If the packing box housing (key 6) is mounted on the valve: Use a formed wire hook with a sharp end to pierce
the packing rings, and pull the rings out of the packing box housing. Do not scratch the drive shaft or packing
gland bore. Scratching these surfaces could cause leakage. Clean, inspect, and obtain replacement parts as
necessary for reassembly. Examine the drive shaft and packing gland bore for any signs of damage that may
prevent proper sealing.
b. If the packing box housing is separated from the valve (refer to Seal Ring Maintenance section of this manual for
disassembly instructions): Remove the drive shaft (key 20) from the packing box housing. With the drive shaft
removed, remove all internal packing parts. Clean, inspect, and obtain replacement parts as necessary for
reassembly. Examine the drive shaft and packing gland bore for any signs of damage that may prevent proper
sealing.
Note
Verify that the grounding ball is installed in the drive shaft-to-ball tang interface to guarantee electrical continuity between ball
trim and valve drive shaft.
The packing sets (key 105) listed in the parts list do not include any metal parts. Either clean and reuse metal packing
parts or obtain replacements by ordering them individually.
Packing Assembly
For additional information on the ENVIRO-SEAL packing system refer to the ENVIRO-SEAL Packing System Instruction
Manual (D101643X012).
If the packing housing box (key 6) is removed from the valve, use the valve assembly steps to reinstall the drive shaft
(key 4) and packing box housing assembly on the valve. (Refer to Seal Ring Maintenance section of this manual for
additional assembly instructions).
1. Place the new packing components over the valve drive shaft (key 20) and slide each into the packing box housing
until properly seated at the bottom of the packing gland bore. Use the parts sequence shown in figure 3 and verify
the correct configuration
2. For standard packing arrangements, secure the packing follower and packing flange with packing nuts (keys 114,
102, and 101). Tighten the packing flange nuts alternately and evenly until leakage has stopped during operating
8
.
Instruction Manual
D104425X012
Advertisement
Table of Contents
