AirSep AS-Q, Instruction Manual

Page: 139 / 198

AS-Q—AS-Z Series Instruction Manual 139
AirSep Corporation
Caution: An actuator should be remounted on the
valve from which it was removed. The actuator must be
readjusted for proper open and close position each time it
is remounted.
Caution: The linkage has been designed to support the
weight of the Jamesbury actuators and recommended
accessories. Use of this linkage to support additional
equipment such as people, ladders, etc. may result in the
failure of the linkage, valve or actuator and may cause
personal injury.
WARNING:
WHEN MOUNTING THE ACTUATOR MAKE SURE THAT THE VALVE
AND ACTUATOR ARE BOTH IN THE SAME POSITION. MOUNTING AN
OPEN ACTUATOR TO A CLOSED VALVE MAY RESULT IN VALVE STEM
DAMAGE.
NOTE: When a single-acting STMS pneumatic spring-return
actuator is mounted to a Wafer-Sphere valve, it can be
mounted only in the spring-to-close mode (air-to-open).
6.1 Actuator Mounting Instructions
1. When a spring-return actuator is being mounted, the
valve should be in the closed position for spring-to-close
operation or in the open position for the spring-to-open
operation. When an electric or double-acting pneumatic
actuator is being mounted, the valve position should
correspond to the indicated actuator position.
2. Assemble bracket to actuator as shown in (Figure 13).
Tighten to torque listed in (Table 5).
3. Place the coupling onto the valve stem. If the valve has
a two-piece “no-play” bolted coupling, assemble the
coupling loosely on the valve stem. Use socket head
cap screws and lock nuts (See Figure 14).
4. Lower actuator and bracket onto valve while engaging
actuator stem driver into coupling. Tighten screws just
enough to firmly mate bracket to valve. This should
allow bracket to shift, allowing the coupling to align
the valve and actuator shafts (See Figure 16, Step 3A.)
TABLE 4
Actuator IMO
Quadra-Powr® IMO-31, 32
ST-50 IMO-22
ST-60, 90, 115, 17SMS IMO-23
ST-200/400 IMO-26
ST-600/1200 IMO-24, 38
ST160, 240, 290, 440MS IMO-27, 39
ST-1800 IMO-506
Manual Gears IMO-63
SP IMO-512
BC, B1C 5 BC 70-A
BJ, B1J 5 BJ 70-A
EU Series IMO-515
ER Series IMO-516
5. Tighten the no-play coupling screws to torques shown in
(Figure 16, Step 3B). Use alternating sequence shown.
6. Cycle actuator. See actuator instructions.
7. Fully tighten the screws holding the bracket to the
valve, as shown in (Figure 16, Step 3C).
8. Recheck no-play coupling screw torques, using the
torques in (Figure 16, Step 3B). Use alternating
sequence shown.
9. Adjust the actuator travel stops as described in the
actuator instructions to these proper valve open and
closed positions:
Valve Open:
Disc face (or shaft blade) perpendicular with the flange face.
Valve Closed:
Disc face parallel to flange face within 1/32” (.79 mm).
6.2 Direct Drive Mounting
Follow instructions per Paragraph 6.1 except for coupling
assembly. (See Figure 17)
Figure 13
Figure 14
Place Coupling On Stem.
Screws of no-play
coupling to face in line
with pipe with the valve
closed.
Tighten sequentially.
IMO 1/18
IMO-308 EN 13