Dwyer WE31 - Manual (Page 5)

ELECTRIC ACTUATORS
Electric Installation
1. Operate valve manually and place in the open position.
2. Remove any mechanical stops the valve might have. (DO NOT REMOVE ANY
PARTS NECESSARY FOR THE PROPER OPERATION OF THE VALVE, SUCH AS
THE PACKING GLAND, PACKING NUT, ETC.)
3. Ensure that the actuator output shaft and valve stem are aligned properly. If they
are not, operate the valve manually until they are correct.
4. Remove actuator cover.
5. Bring power to the actuator. CAUTION: Make sure power is OFF at the main box.
6. Wire the actuator per the diagram attached to the inside of the cover. Special
actuators (those with positioner boards, etc.) will have diagrams enclosed inside the
cover.
7. Securely tighten bolts used to mount the actuator to a mounting bracket or directly
to the valve mounting pad if it is ISO5211 compliant.
8. Cycle the unit several times and check the open and closed positions of the valve.
Cams are pre-adjusted at the factory; due to the variety of valve designs and types
however, slight adjustments might be required.
9. Replace cover and tighten screws.
To Set The Open Position
1. Cycle the valve to the open position by applying power to terminals. The top cam
and switch control this position. In the open position, the set screw in the top cam
will be accessible.
2. If the valve is not open completely:
A. Slightly loosen the set screw on the top cam.
B. Rotate the cam clockwise (CW) by hand until the switch makes contact.
Contact is made when a slight click can be heard. By making incremental CW
movements of the top cam, the valve can be positioned precisely in the desired
position.
C. When the top cam is set, tighten the set screw securely.
3. If the valve opens too far:
A. Apply power to terminals. This will begin to rotate valve CW. When
valve is fully open and in the exact position desired, remove power from actuator.
B. Loosen the set screw in the top cam.
C. Rotate the top cam counterclockwise (CCW) until the switch arm drops off the
round portion of the cam onto the flat section. A slight click can be heard as the
switch changes state.
D. Continue applying power to terminals until valve is in the desired position.
To Set The Closed Position
1. Apply power to terminals to move the valve toward the closed position. The
bottom cam and switch control the closed position. In the closed position, the set
screw in the bottom cam will be accessible.
2. If the valve is not closed completely:
A. Slightly loosen the set screw on the bottom cam.
B. Rotate the cam counter-clockwise (CCW) by hand until the switch makes
contact. Contact is made when a slight click can be heard. By making incremental
CCW movements of the bottom cam, the valve can be positioned precisely in the
desired position.
C. When the top cam is set, tighten the set screw securely.
3. If the valve closes too far:
A. Apply power to terminals. This will begin to rotate valve CCW. When
valve is fully closed and in the exact position desired, remove power from
actuator.
B. Loosen the set screw in the top cam.
C. Rotate the top cam clockwise (CW) until the switch arm drops off the round
portion of the cam onto the flat section. A slight click can be heard as the switch
is no longer making contact with the round part of the cam.
D. Continue applying power to terminals until valve is in the desired position.
Model
ACT-DA01
ACT-DA02
ACT-DA03
ACT-DA04
ACT-DA05
ACT-DA06
ACT-DA07
ACT-DA08
ACT-DA09 40 psi
49
104
182
302
396
567
845
1497
2253 50 psi
61
130
228
377
495
709
1056
1871
2816 60 psi
74
155
274
453
594
851
1267
2245
3379 70 psi
86
181
319
528
693
993
1478
2619
3942 80 psi
98
207
365
603
792
1135
1690
2993
4506 90 psi
110
233
411
679
891
1277
1901
3367
5069 100 psi
123
259
456
754
990
1419
2112
3742
5632 110 psi
135
285
502
830
1089
1561
2323
4116
6195 115 psi
142
300
529
875
1148
1649
2450
4340
6533
Air Pressure
DA Double-Action Output Torque (lb-in)
Model
ACT-SR02
ACT-SR03
ACT-SR04
ACT-SR05
ACT-SR06
ACT-SR07
ACT-SR08
ACT-SR09
ACT-SR10
Spring
Quantity
10
10
10
10
10
10
10
10
10
Air Pressure
SR Single Acting Pneumatic Actuator (lb-in)
0°
Start
111
199
348
430
608
783
1682
2303
3479 90°
End
86
143
254
312
458
663
1208
1483
2274 0°
Start
137
245
424
529
750
994
2056
2866
4337 90°
End
112
189
330
411
599
874
1583
2046
3133 0°
Start
163
291
499
628
891
1206
2430
3429
5195 90°
End
138
235
405
510
741
1085
1957
2609
3991 0°
Start
189
336
575
727
1033
1417
2804
3992
6053 90°
End
164
280
481
609
883
1297
2331
3173
4849 0°
Start
215
382
650
826
1175
1628
3178
4556
6911 90°
End
189
326
556
708
1025
1508
2705
3736
5707 0°
Start
231
409
695
885
1260
1755
3403
4894
7426 90°
End
205
353
601
767
1110
1635
2930
4074
6222 90°
Start
96
176
274
381
536
817
1416
2363
3549 0°
End
70
120
180
263
386
696
938
1575
2407
70 psi 80 psi 90 psi 100 psi 110 psi 115 psi Spring Torque
Double Acting Actuator Torque
Spring Return Actuator Torque
Page 5