Data sheet
Sheet No.: D35, Rev. C
Date:
December 2011
Hytork XL
Envelope Dimensions and Torque Data
XL681 Double acting and Spring Return actuator
SR = 582 (22.91")
562 (22.13")
96 (3.78")
DA = 324 (12.76'')
52 (2.05")
204 (8.03")
180 (7.09")
3 (0.12")
94 (3.70")
174 (6.85")
Location Ring
only on metric
units
END VIEW
SIDE VIEW
Torque in Nm, Pressure in bar(g)
Double Acting Torques
Spring
Rating
S40
S50
S60
S70
S80
S90
S1C
Torque From
Springs
Start
End
151
91
189
113
227
136
264
159
302
181
340
204
378
227
259
345
431
474
517
604
690
3.0 bar(g)
4.0 bar(g)
5.0 bar(g)
5.5 bar(g)
6.0 bar(g)
7.0 bar(g)
8.0 bar(g)
Start
168
145
123
-
End
108
70
32
-
Start
254
232
209
186
164
-
End
194
156
118
81
43
-
Start
340
318
295
273
250
227
205
End
280
242
205
167
129
91
54
Start
384
361
338
316
293
270
248
End
323
285
248
210
172
134
97
Start
427
404
381
359
336
313
291
End
366
329
291
253
215
178
140
Start
513
490
468
445
422
400
377
End
453
415
377
339
301
264
226
Start
599
576
554
531
509
486
463
End
539
501
463
425
388
350
312
Torque in inch-pounds, Pressure in PSI
Double Acting Torques
Spring
Rating
S40
S50
S60
S70
S80
S90
S1C
Torque From
Springs
Start
End
1337
802
1671
1002
2005
1203
2339
1403
2673
1604
3007
1804
3341
2005
2091
2613
3136
4181
4704
5226
6272
40 PSI
50 PSI
60 PSI
80 PSI
90 PSI
100 PSI
120 PSI
Start
1289
1088
-
End
754
420
-
Start
1811
1611
1410
-
End
1277
942
608
-
Start
2334
2133
1933
1732
1532
-
End
1799
1465
1131
797
463
-
Start
3379
3179
2978
2778
2577
2377
2176
End
2844
2510
2176
1842
1508
1174
840
Start
3902
3701
3501
3300
3100
2899
2699
End
3367
3033
2699
2365
2031
1696
1362
w w w. H y t o r k . c o m
Copyright © Emerson Process Management. The information in this document is subject to change without notice.
Updated data sheets can be obtained from our web site www.hytork.com or from your nearest Valve Automation Center
USA: +1 281 477 4100 (fax 281 477 2809) UK: +44 191 5180020 (fax 5180032)
Start
4424
4224
4023
3823
3622
3422
3221
End
3890
3556
3221
2887
2553
2219
1885
Start
5470
5269
5069
4868
4668
4467
4267
End
4935
4601
4267
3933
3598
3264
2930