Instruction Manual
D101554X012
Vee-Ball Valves
March 2021
10
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
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.
Assembly
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 assembly.
Series B only
1. For NPS 8, 10, and 12 valves, install the packing spacer (key 34) if it has been removed.
2. To help ensure correct centering of the Vee‐ball (key 2) on the seal (key 11), make sure the ball is closed while you
install or tighten new packing. Insert a screwdriver, pry bar, or similar tool between the lower ear of the ball and the
valve body. Use the pry to move the ball tightly against the bearing on the actuator side of the valve (see figure 6).
Keep the ball in that position until you have completed packing installation and adjustment.
3. Install the new packing parts using the parts sequence shown in figure 5. Install the packing follower (key 17). Alloy
constructions have a packing follower (key 17) and a separate packing flange (key 40) that must be replaced.
4. Secure the packing follower with the packing follower nuts (key 20). Tighten the nuts far enough to stop leakage
under operating conditions.
Handle the seal protector ring, seal, and other parts carefully to prevent damage. A new gasket (key 15) is required
whenever the seal protector ring (key 3) (figure 11) is removed.
Flow ring construction
does not use a seal, shims, or spring seal. Use this procedure to remove the seal protector ring
from flow ring constructions, but disregard any instructions calling for the seal, shims, or spring seal.
Note
If the valve is equipped with a bonding strap assembly (figure 3), re‐install the assembly.
5. Reconnect the actuator and lever in accordance with the orientations that were noted in step 3 of the disassembly
procedures. If necessary, use figure 23 to identify the correct index marks.
6. Refer to the appropriate actuator instruction manual to complete actuator assembly and adjustment.
7. When the control valve is in operation, check the packing follower for leakage and retighten the packing follower
nuts (key 20) as necessary.
