Service Instructions - Actuator - SPX FLOW APV DELTA SD4 Series Instruction Manual

APV
APV_SD4_ATEX_UK-0_122018.indd
fig. 13.1.
seal screw
piston rod
actuator
seal screw
fig. 13.2.
fig. 13.3.
housing screw
prox. switch support
positioning screw
actuator screw
centering washer
o-ring
guide rod
piston rod - actuator
hex. screw M8
Double seal valve
DELTA SD4-ATEX
Instruction Manual: UK - rev. 0
13. Service Instructions - Actuator
Spare parts list: RN01.054.86
13.1. Maintenance of actuator (fig. 13.1.)
v-seal
1. Remove the air hoses from the actuator.
o-ring
2. Unscrew the two seal screws with a spanner SW30
while holding up the actuator with a strap wrench.
13.2. Installation of seals and Assembly of Actuator
1. Install the greased o-rings and v-seals in the seal screws (fig. 13.2).
See to the correct installing direction of the v-seal.
air connection
2. Slide the seal screws over the piston rod at both sides of the
actuator and tighten them.
3. Fasten the yoke on the actuator.
v-seal
Attention:
o-ring
NC = normally closed / air-to-raise, spring-to-lower
NO = normally open / air-to-lower, spring-to-raise
4. Fasten the air hoses.
13.3. Actuator with valve position indicator
Assembly of holder (fig. 13.3.)
1. Install the actuator screw on the actuator.
2. Provide the housing with the o-ring.
3. Fasten the housing by means of the 4 hex. screws M8
on the actuator.
4. Release the screws at the proximity switch holder and insert
the corresponding proximity switches. Then fasten the screws.
5. Place the actuator in one limit position.
6. Place the corresponding proximity switch in the corresponding
position. Release the positioning screw and move the holder until
the corresponding signal is indicated. Then continue the movement
by 2 to 3 mm to secure indication.
Fasten the positioning screw.
7. Place the actuator in the other limit position and carry out
positioning of the second proximity switch.
Consider the required valve design
NC or NO during the installation of the yoke.
UK
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