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.