APV DELTA SW4, Operating Manual

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DELTA SW4 - UK-3.qxp 23.04.2009
UK
Single Seat and Change-over Valve
DELTA SW4
Operating manual UK - rev. 3 18
11.1. Disassembly from the line system
1. Shut off line pressure and drain lines if possible.
2. Release connection between the upper housing globe and
the connected line.
3. Valve design NC: Control actuator with air.
Do not touch movable valve parts!
Risk of injury.
4. Remove the lower clamp.
5. Lift the valve insert together with the upper housing
off the lower housing.
6. Attention: Valve design NC:
Shutt off compressed air and
remove compressed air supply.
7. Take control unit from the actuator.
11.2. Dismantling of product-wetted parts
1. Unscrew the actuator screw from the guide rod.
Dismantle adapter of control unit.
2. Attention: Valve design NC:
Control valve with pneumatic air.
3. Unscrew the safety nut, while holding up the
centering washer. Remove the centering washer.
Attention: Valve design NC:
Shut off valve with pneumatic air.
4. Take the shaft out of the actuator and remove the seat seals.
5. Detach the upper clamp and upper housing.
Remove the two housing seals.
6. Unscrew the yoke from the actuator.
7. Take off seat seals, shaft seal and guide bush.
Service of actuator, see section 10.1
actuator screw
safety nut
centering washer
control unit
CU adapter
actuator
seat seal
upper clamp
housing seal
upper housing
yoke
guide bush
shaft seal
llower clamp
housing seal
llower housing
shaft
seat seal
11. Service Instructions - Change-over Valve
!
Change-over valve
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