Instruction Manual
D104548X012
V200U Valve
May 2020
14
5. Install the HD seal (key 11) into the seal protector ring (key 3), past the radial seal. While pushing it past the radial
seal, make sure the HD seal is level.
6. Install a replacement gasket (key 15) on the valve body (key 1). Install the HD ball seal/seal protector ring assembly
into the valve body (key 1).
7. Install clips and screws that clamp the seal protector ring to the valve body (keys 3, 21, and 22).
8. If necessary, refer to the Packing Maintenance procedures to install the packing. Install the actuator using the
Actuator Mounting procedures or to the appropriate actuator instruction manual.
1. For
DN 150, 200, and 250 (NPS 6, 8, and 10),
position the valve body on a flat surface with the outlet side of the
valve facing up.
2. Lubricate the radial seal (key 37) and install into the appropriate groove in the valve body, making sure the open
side of the radial seal faces away from the ball.
3. Install the wave spring (key 13) into the appropriate groove in the valve body.
4. The HD seal can be installed by pushing the HD seal past the wave spring and radial seal, making sure the HD metal
seal remains level. Following this, install the remaining trim components as explained under the Bearing and Ball
Maintenance Assembly section of this manual.
5. Use the pry bar or similar tool to move the ball tightly against the bearing on the actuator side of the valve to help
ensure correct side-to-side centering of the ball (key 2) on the seal (key 11). See figure 5.
6. Be sure that the HD seal is fully installed in the valve. Carefully rotate the ball to engage the HD seal while applying
force across the middle of the seal to compress the wave spring until the ball is fully engaged. Be cautious during
this process, knowing that excessive force may damage the ball. Keep the ball in the engaged position going
forward.
7. Continue to check the ball's position and re-center if necessary during actuator mounting and packing adjustments.
HD Ball Seal Lubrication
To assist with break‐in of the HD seals, it is required that the ball and seal be lubricated with dry film lubricant or
equivalent moly disulfide.
Bearing and Ball Maintenance
WARNING
Before performing the steps in this section, observe the WARNING at the beginning of the Maintenance section of this
manual.
Procedures for disassembly and assembly of the bearings and ball cannot be accomplished until the shaft and valve
packing are removed from the valve.
Refer to the Replacing Packing procedures to remove the actuator, and to remove the packing flange and packing
follower from the valve. When the packing disassembly steps are complete, return to this section.
Disassembly
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 at the bottom of
the valve body cavity. Make sure the ball will not rotate.
