Flowserve 10 ACCESS I Worcester Controls - Manual (Page 2)

2 10, 15, 20 ACCESS I and 10-40 Access M 39 Actuators Intrinsically Safe WCAIM2028
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 1 /
4
"– 2" 44, and 1 /
2
"– 2" WK70/WK74, 1 /
4
"–1 1 /
2
" 59 and 1 /
2
"–1 1 /
2
"
H71 Series top-mount style valves and 1 /
2
"– 2" 51/52, 1 /
2
"–1 1 /
2
"
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
1 /
3
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 1 /
2
" 45, 82/83 series valves, and
valves 3" and larger with square stem, remove handle
assembly (if any), retaining nut, stop and stop screws.
Replace with valve stem spacer or, if valve has graphite stem
packing, with two Belleville washers (except 8", 10" 82/83 and
10" 51/52), 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
1 /
6
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 1 /
2
"– 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.
For 2" and larger 818/828 valves, remove handle assembly,
locking plates and hardware, and stop screw (if any). Do NOT
remove stop plate (2"– 6" sizes) or spacer (8" size).
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
1 /
2
"– 2" top mount style valves, bracket nameplate will be to
side of valve.
Install set screws (if any) in the coupling and tighten securely.
6. Determine if mode of operation is as desired; if not:
a. Double-Acting Actuators - Mount the actuator 90° from
normal mounting (see last paragraph in D.6.b for size 25
and larger actuators). On 10–20 sizes, the actuator may
also be inverted, yielding the opposite mode.
b. Spring-Return Actuators - The normal method of
mounting is to have the actuator in line with the pipe line
and the valve and actuator in the FAIL-CLOSED position.
For FAIL-CLOSED cross-line operation with 10–20 sizes,
invert actuator and cross-line mount actuator to pipe line.
For FAIL-OPEN in-line operation with 10–20 sizes, 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 pipe line. See Electrical
Connection Section for proper wiring information.
For FAIL-OPEN cross-line operation with 10–20 sizes,
rotate the valve ball and stem 90°, so coupling lines up
with actuator shaft. Mount actuator cross line to pipe line.
See Electrical Connection Section for proper wiring
information.
On sizes 25 and larger double-acting and spring-return
actuators the output shaft is square. This allows selection
of either mode of operation by indexing the coupling
(including valve ball and stem) 90° to the actuator shaft,
while keeping the actuator in an in-line orientation. Cross-
line mounting, if desired, requires a special bracket,
except for the 818/828 Series valves.
7. 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 (this step is
only necessary on 10–20 sizes).
d) Locate indicator on actuator shaft flats. Press firmly until
location nibs snap into recess on actuator shaft.
Flow Control
Worcester Controls