上海VT单作用气缸，单作用气动执行器
 
详细信息
 
 
Maintenance & Operating Instructions
 
VATTEN® ACTUATOR OPERATION
 
NOTE: For optimal operation, VATTEN actuators should be run with a supply of clean, lubricated air.
 
SPRING RETURN ACTUATORS
 
Air to PORT 2 (the right hand port)2 causes air to
 
.
 
DOUBLE ACTING ACTUATORS
 
Air to PORT 2 (the right hand port)1 (t     ft hand port)
 
causes the actuator to turn CW.
 
DISASSEMBLING STANDARD ACTUATORS
 
IMPORTANT: Before beginning disassembly, ensure that the air supply to the actuator has been disconnected, all
 
accessories have been removed and that the actuator has been dismounted from the valve.
 
(22) with a wrench (size varies depending on actuator model). On the spring return
 
actuator,
 
removing the cap since the springs are under load until the fasteners are fully extended.
 
(10)(7) may now be removed.
 
(2)(11) from the
 
pinion. (NOTE:--might be required to force the pistons completely
 
from the body.)
 
of the pistons are located on the side and should be right-side up on an actuator with a standard orientation.
 
 
(3, 4, 5, 6, 12, 13, 14) be
 
replaced before reassembly.
 
REASSEMBLING STANDARD ACTUATORS
 
IMPORTANT: Be sure that the actuator surfaces are free of grit and scratches before reassembling.
 
-rings and the pinion before replacing.
 
(2) back through the actuator with the flats of the pinion shaft running parallel with the body.
 
, make sure that the piston racks are square to the actuator body and returned to
 
their original orientation. (NOTE:
 
to change the orientation to FAIL OPEN, rotate the racks 180º to create a reverse operation.
 
, ensure that the springs are replaced in their identical position
 
in the end cap from which they were removed. (NOTE: In some circumstances, you might want to change the
 
 
 
for the inner and outer spring combinations that will allow you to operate with the spring set that you desire.
 
.
 
(pinion, end caps) with soapy water and using low pressure
 
air to the actuator to ensure that no bubbles are produced.