Flowserve V-377 R4 Edward Valves - Manual (Page 26)

26
Flow Control Division
Edward Valves
3. Move the socket head adjusting
screw (H) in for light seating.
4. Close the valve by the motor and test
for tightness of closing. If the valve
closes tightly enough, tighten the jam
nut.
5. For heavier seating move the adjust-
ing screw (H) out and retighten the
jam nut.
6. For setting the torque switch for the
opening direction of valve travel, the
same procedure as outlined in steps
2, 3, and 5 is followed, except this
adjustment is made on the left side of
the switch, using the lower adjusting
screw.
7. The threaded bushing (J) is intended
to limit the maximum setting of this
torque switch and is locked in posi-
tion to limit the output torque to the
maximum safe rating for the unit.
Torque Switch Setting
The procedure outlined for setting torque
switches is to be used only on occasions
when maintenance on the switch itself or
adjacent components require it.
Procedures for Setting Actuator Torque and Limit Switches
(continued)