SPX FLOW APV DELTA SDMS4 Instruction Manual page 20

APV
APV_SDMS4_UK-0_112017.indd
control unit
actuator screw
hex. nut
centering disc
guide rod
CU adapter
actuator
yoke
upper
shaft
diaphragm
shaft
leakage valve
housing
15
11. Service Instructions
11.1. Dismantling from the line system DELTA SDMS4
The reference numbers refer to the spare parts drawings
SDMS4 : DIN-design and Inch-design RN 01.054.70
1. Shut off the line pressure and discharge lines if possible
2. NC version:
Do not touch movable parts!
!
Risk of injury.
3. Remove hex. screws (9) and lift the complete valve insert
with actuator out of the housing.
4. NC version:
guide bushing
5. Design with Control Unit: Remove the Control Unit.
o-ring
- Design with valve position indicator (PSH):
diaphragm
Remove the proximity switches. Detach the indicator housing
support
(proximity switch holder; PSH) from the actuator.
o-ring
fan
11.2. Dismantling of wear parts (product-wetted parts )
o-ring
1. Design with control unit and valve position indication:
seat seals
At first, unscrew the actuator screw. Release the hex. nut (26)
while holding up the centering washer (25).
Remove the centering washer.
2. Extract the shaft with guide rod (2), diaphragm (13), fan (14),
upper shaft (4) and diaphragm support (3) from the actuator (23).
position indicator
Remove the seat seals (16, 17) and o-ring (15).
housing
3. Remove the yoke (7) from the actuator (23).
actuator screw
hex. nut
- Actuator can be maintained.
centering disc
(see 13. Service Instructions - Actuator).
guide rod
4. Detach o-rings (5, 12) and guide bush (6) from the yoke (7).
5. Clean the valve housing, yoke, actuator and shaft with a low
solution of a cleaning agent. Never use cleaning agents
containing abrasive or polishing material.
actuator
Control actuator with air.
Shut off compressed air and
remove compressed air connection.
Double seal valve with diaphragm and ,,fan support"
UK
DELTA SDMS4
Instruction Manual UK-rev.0