Sun Yeh Electrical M Series, Operation Manual, Page: 13 / 75

【M Series】Multi-turn Electric Valve Actuator
10
2021.06

Non-rising Stem
a. Use M10 screws
【
4
】
to fasten the non-thrust base assembly
【
3
】
with the actuator
【
1
】
.
Screw Size Torque (N

m)
M10 12.5
b. Mount the actuator
【
1
】
with the valve stem
【
5
】
until it is flush with the valve flange..
c. Adjust the actuator
【
1
】
until alignment of the fixing holes and ensure
the stem nut of non-thrust base assembly
【
3
】
is engaged with the
output drive sleeve
【
2
】
(see photo on the right).
If the flanges are flush with each other, the actuator
【
1
】
will be engaged with the non-thrust base assembly
【
3
】
properly.
d. Tighten M10 screws
【
6
】
.
Screw Size Torque (N

m)
M10 25

Use suitable screws and couplings to direct mount with the valve.

DO NOT lift the actuator through the hand wheel while moving to
avoid actuator damage.

The basic setting is finished if the actuator is mounted with the valve
when ex-factory.
【
1
】
Actuator
【
2
】
Output Drive Sleeve
【
3
】
Non-thrust Base Assembly
【
4
】
M10 Screws
【
5
】
Valve stem
【
6
】
M10 Screws
(Prepared by customer)