AirSep AS-Q, Инструкция по эксплуатации, Страница: 158 / 198

158 AS-Q—AS-Z Series Instruction Manual
AirSep Corporation
2. Mount the actuator to the valve, following the direction
in the linkage AMI or valve IMO.
3. Connect a regulated air supply to the NPT fitting in
the actuator housing. CAUTION: The maximum
operating pressure is 116 psi (8 bar).
4. Adjust the stop screws following ASSEMBLY Section
4.3.5.
3.2 Operation
1. The actuator series, size, operating pressure operating
temperature, output torque, spring directions, and drive
type is determined by the actuator designation.
2. The label lists the actuator series, size, operating
pressure, maximum pressure, and serial number.
Actuator designation example, VPVL300SR6BC, is a
spring-return series, VPVL300 double-opposed piston
actuator that has 80-psi (5.5-bar) springs, a Teflon
®
-coated anodized housing (protection B), an end-of-
spring-stroke output torque of 44.9 FT•LBS (60.8 N•m).
4. MAINTENANCE
4.1 General
Although Metso’s Jamesbury actuators are designed to work
under severe conditions, proper preventative maintenance
can significantly help to prevent unplanned downtime and
in real terms reduce the total cost of ownership. Metso
recommends inspecting actuators at least every five (5)
years. The inspection and maintenance frequency depends
on the actual application and process condition.
NOTE: All VPVL actuator fasteners are metric. Under normal
operating conditions the actuator requires only periodic
observation to ensure proper adjustment. Repair kits are
available to replace seals and bearings (soft parts). These
parts are identified in (Figure 23) and listed in (Table 3).
(Table 1) below lists kit part numbers.
4.2 Disassembly
When disassembly of the actuator is required for maintenance,
remove the actuator from the valve. Ensure proper lifting
procedures are followed when moving or carrying actuators.
CAUTION: Do not use the M5 VDE/ VDI mounting holes
or the M6 hole in the pinion for lifting the actuator.
When disassembling VPVL actuators, use caution and be
certain that the actuator is free from accessories and the
air supply is disconnected. When the actuator is a spring-
return unit, make sure that the actuator is in the failed
position before disassembling.
TABLE 1
Complete Repair Kit
Actuator Standard High Temp. Low Temp.
VPVL-01/011 RKP-152 RKP-232 RKP-247
VPVL-050/051 RKP-262 RKP-233 RKP-248
VPVL-100 RKP-263 RKP-234 RKP-249
VPVL-200 RKP-264 RKP-235 RKP-250
VPVL-250 RKP-265 RKP-236 RKP-251
VPVL-300 RKP-266 RKP-237 RKP-252
VPVL-350 RKP-267 RKP-238 RKP-253
VPVL-400 RKP-268 RKP-239 RKP-254
VPVL-450 RKP-269 RKP-240 RKP-255
VPVL-500 RKP-270 RKP-241 RKP-256
VPVL-550 RKP-271 RKP-242 RKP-257
VPVL-600 RKP-272 RKP-243 RKP-258
VPVL-650 RKP-273 RKP-244 RKP-259
VPVL-700 RKP-274 RKP-245 RKP-260
VPVL-800 RKP-275 RKP-246 RKP-261
1. Removal of Position Indicator (19,20), (Figure 3):
A. Remove cap screw if fitted (39).
B. Lift position indicator (19) off shaft; it may be
necessary to pry gently with a screwdriver.
2. Removal of Stop Cap Screws (02), (Figure 4):
Figure 3
39
19
Figure 4
02, 04, 03, 11
IMO 11/17
4 IMO-528 EN