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For mounting, proceed as follows:
Mounting the coupler (Figure 7)
Fasten the coupling by using one of the two 90° stag-
gered threaded holes, which allows different actuator
mounting (closed by spring / opened by spring).
1. Screw the hexagon socket screw (7) into the appro-
priate threaded hole (9 for closed-by-spring; 10 for
opened-by-spring) in the coupling (8), so that the
screw is not protruding into the coupling hole.
2. Place the coupling on the positioner's rotary con-
nection. Ensure the hexagon socket screw (7)
points to the recess on the rotary connection.
3. Fasten the socket screw (7) by using a hexagon
socket screw key (3 mm).
Mounting the positioner (Figure 7)
1. Attach the mounting plate (1) to the positioner and
fasten it with two hexagon head screws (3) and lock
washers (2).
2. Place the mounting plate (1) with the positioner
onto the mounting block (4) of the actuator. Ensure
the coupler (8) fits on to the shaft of the quarter-turn
connection on the part-turn valve actuator.
1. Mounting plate
2. Lock washer
3. Hexagon head screw
4. Mounting block
(not part of the mounting kit)
5. Lock washer
6. Nut (4x)
7. Hexagon socket screw
8. Coupler
9. Threaded hole (spring to close)
10. Threaded hole (spring to open)
Figure 7: Mounting a Part-turn Valve Actuator (in acc. with VDI/VDE)
51-8
3. Hand-tighten the plate (1) onto the actuator with
4. Tighten all screws and nuts.
Tubing Positioner to Actuator
After mounting has been completed, tube the positioner
to the actuator using the appropriate compression fit-
ting connectors:
Air connections: 1/4" NPT (standard air connection)
Auxiliary power: Pressurized air or permissible
gases, free of moisture and dust in according with
IEC 770 or ISA 7.0.01.
Pressure range: 22 – 87 psi (1.5 – 6.0 bar)
For connecting the air piping, the following notes should
be observed:
1. The positioner passageways are equipped with
2. Supply air should meet IEC 770 or ISA 7.0.01
4
3
2
1
10
7
8
9
Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
four nuts (5) and lock washers (6), center it and
fasten the nuts.
filters, which remove medium and coarse size dirt
from the pressurized air. If necessary, they are
easily accessible for cleaning.
requirements. A coalescing filter should be installed
in front of the supply air connection Z. Now connect
6
5
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