Flowserve 10 ACCESS I 39 Actuators - Manual (Page 2)

2 10, 15, 20 ACCESS I 39 Actuators WCAIM2027
For mounting to 818/828 Series valves, insert ISO locating ring
into groove on bottom of actuator before attaching to bracket.
NOTE: Ring can be permanently held in groove by applying
Loctite to ring before inserting in groove.
D. Attach bracket/actuator assembly to valve as follows:
CAUTION: Ball valves can trap pressurized media in the cavity.
If it is necessary to remove any valve body bolts, stem nuts, or
remove valve from the line, and if the valve is or has been in
operation, make sure there is NO pressure to or in the valve
and operate valve one full cycle. However, the valves listed
below do not require the removal of any valve body bolts or
removal of valve from line in order to mount actuator.
1. Rotate valve ball and stem to position necessary to achieve
desired operation. If any valve information is marked on stop
plate or handle, it will be necessary to transfer this
information to the bracket nameplate.
2. For Z\v" - 2" 44, Z\x" - 2" WK70/WK74, Z\v" - 1Z\x" 59, and
Z\x" - 1Z\x" H71 Series top-mount style valves and Z\x" - 2" 51/52,
Z\x" - 1Z\x" 82/83 Series valves with high-cycle stem packing as
standard, remove handle nut, lockwasher, handle, separate
stop plate, if any, retaining nut and stop pin(s). Add the two
additional Belleville washers with their larger diameter sides
touching each other. Add the self-locking nut to the stem and
tighten while holding the stem flats with wrench. Tighten until
Belleville washers are flat, the nut will “bottom”, and then
back nut off
Z\c of a turn. The two additional Belleville washers
and the self-locking nut are included in the mounting kit.
CAUTION: The self-locking stem nut is difficult to tighten,
and must fully flatten Belleville washers before backing off.
For 2" 59, H71, 82/83, and 2 Z\x" 45, 82/83 valves, and valves
3" and larger with square stem, remove handle assembly,
retaining nut, stop and stop screws. Replace with valve stem
spacer or, if valve has graphite stem packing, with two
Belleville washers, and replace retaining nut. NOTE: Belleville
washers are installed with their larger diameter sides
touching each other. Do not use stem spacer when Belleville
washers are used. Using a wrench to prevent stem from
turning, tighten retaining nut until stem packing is fully
compressed or Bellevilles, if used, are fully flattened, then
back off nut
Z\n turn. Excessive tightening causes higher
torque and shorter seal life.
NOTE: Large valves with V51 high-cycle stem packing option
installed, identified by two Belleville washers installed and
handle assembly, stop, and stop screws removed, and
818/828 Series valves do not require stem area disassembly.
For 2" and larger 818/828 valves, remove handle assembly,
locking plates and hardware, and stop screw, if any. Do not
remove stop plate or spacer.
For Z\x"-2" 94 valves, remove handle, if any. Do not remove
gland plate or gland bolts.
For 3" and larger 94 and 2" and larger E818/828 valves,
remove handle assembly, stop, and spacer, if any. Do not
remove gland plate or gland bolts.
3. Center coupling on valve stem.
4. Lower mounting bracket/actuator assembly over coupling
and onto valve, making sure that male actuator shaft
engages slot in coupling.
5. Secure bracket to valve using cap screws and lockwashers, or
bolts and nuts provided in mounting kit. Tighten securely. For
Z\x" - 2" top-mount style valves, bracket nameplate will be to
side of valve.
6. Install set screws, if any, in the coupling and tighten securely.
7. Determine if mode of operation is as desired; if not:
a. Double-Acting Actuators - Mount the actuator 90° from
normal mounting, or the actuator can be inverted, yielding
the opposite mode.
b. Spring-Return Actuators - The normal method of
mounting is to have the actuator in-line with the pipeline
and the valve and actuator in the “FAIL-CLOSED” position.
For “FAIL-CLOSED” cross-line operation, invert actuator
and cross-line mount actuator to pipeline.
For “FAIL-OPEN” in-line operation, invert actuator. Note: If
in-line coupling is used, actuator does not need to be
inverted. Rotate the valve ball and stem 90°, so coupling
lines up with actuator shaft. Mount actuator in line with
the pipeline. See Electrical Connection Section for proper
wiring information.
For “FAIL-OPEN” cross-line operation, rotate the valve ball
and stem 90°, so coupling lines up with actuator shaft.
Mount actuator cross-line to pipeline. See Electrical
Connection Section for proper wiring information.
8. Determine position indication. Buttons on position indicator
are set up to show valve closed on in-line mounting, i.e.,
pistons together in actuator. If different indication is required:
a. Check which visual indication is required.
b. Check that indicator, when located on actuator shaft, will
show correct indication.
c. To change indication, push out/remove red and white
buttons and reassemble in opposite positions.
d. Locate indicator on actuator shaft flats. Press firmly until
location nibs snap into recess on actuator shaft.
AIR SUPPLY AND ELECTRICAL INSTALLATION
A. 1. Air Supply:
The Series 39 Actuator is factory lubricated. For optimum
operation, the use of filtered and lubricated air is
recommended.
Flow Control Division
Worcester Controls