3
KTM HINDLE
ULTRA-SEAL SERIES 300 TWO PIECE CRYOGENIC
INSTALLATION AND MAINTENANCE INSTRUCTIONS
4D: Actuator assembly
Prior to assembly, check the following details:
1. Actuator type and style, i.e. double acting or
spring return.
2. Position of actuator in relation to valve and
pipeline.
3. Fail-safe position of valve, i.e. open or
closed.
Assembly
1. Close valve fully.
2. Remove handlever/T-bar/gearbox as per
Section 4B.
3. Remove stop screws and stop collars.
4. Ensure that adaptor coupling is a good fit
with actuator drive and extension shaft.
5. Position mounting bracket on to valve and
fit bracket screws. Do not tighten.
6. Position adaptor coupling on to valve.
7. Assemble actuator over adaptor coupling
and on to mounting bracket.
8. Fit actuator screws. Do not tighten.
9. With actuator secure, check for free
alignment of adaptor coupling between
actuator drive and extension shaft. Tighten
mounting bracket screws and re-check
alignment.
10. With actuator in correct position, tighten
actuator screws.
11. If the actuator is fitted with travel stops,
adjust to the closed position. Operate to the
open position and adjust so that the ball port
is aligned with the valve bore.
FIGURE 1
Bonnet top and actuator diagram
(Model shown is NPS 3)
