Instruction Manual
D104548X012
V200U Valve
May 2020
19
17. Continue to check the ball's position and re-center if necessary during actuator mounting and packing adjustments.
For all constructions, refer to Packing Maintenance, and other procedures as necessary to complete the assembly of
the valve.
Figure 11. Taper Key Installation
MAXIMUM ENGAGEMENT OF TAPER KEY
31B0727‐E
A6035‐1
BALL
(KEY 2)
TACK WELD
TAPER KEY
(KEY 4)
DRIVE SHAFT
(KEY 6)
TACK WELD
TAPER KEY
(KEY 4)
MINIMUM ENGAGEMENT OF TAPER KEY
Table 6. Taper Key Minimum Depth
Valve Size, DN
Valve Size, NPS
Minimum Depth To Drive Taper Key After
Initial Solid Contact, mm (Inches)
80, 100, 150
200, 250,
3, 4, 6
8, 10,
4.8 (0.188)
5.6 (0.219)
Table 7. Taper Key Maximum Depth
Valve Size, DN
Valve Size, NPS
Maximum Depth To Drive Taper Key After
Initial Solid Contact, mm (Inches)
80, 100
150
200, 250
3, 4
6
8, 10
7.1 (0.281)
7.9 (0.312)
9.5 (0.375)
Actuator Mounting
Use the appropriate actuator instruction manual, this section of this manual, and figure 12 of this manual when
mounting the actuator or changing actuator styles and positions.
1. To help ensure correct centering of the Vee‐Ball (key 2) on the seal (key 11), be sure the ball is closed when
mounting the actuator (for applications other than Spring Return Fail‐Open).
2. Clean the valve shaft and actuator lever splines to be sure the actuator lever will slide on easily. Only drive the lever
in if absolutely necessary.
3. Carefully wedge the ball solidly against the actuator‐side bearing, using a pry bar or similar tool inserted between
the lower ear of the ball and the valve body. This will center the ball. See figure 5.
