Hytork XL Data Sheet

Hytork XL Series

Technical Data Pneumatic Rack and Pinion Actuators

Product Data Sheet

DOC.DSH.XL.US Rev. 2

February 2021

Notes

February 2021

Hytork XL

This page is intentionally left blank

Product Data Sheet

D67 Rev. 0 Page 1 of 2
October 2017

Hytork XL

Torque Data

Spring-Return Actuators (in-lb), XL26 to XL681

Model

Number

XL26

XL71

XL131

XL186

XL221

XL281

XL426

XL681

Note:

We recommends that the valve manufacturer supply the maximum required torque values (Including any adjustments or suggested safety factors for valve service
conditions or application). Additionally, the valve manufacturer must identify at which position(s) and direction(s) of rotation (Counterclockwise or Clockwise) these
maximum requirements occur.

S1C Spring-return

For all fail closed buttery valves and other Spring-return applications where 100 Psi air is available, Hytork’s optional S1C Spring Modules will often permit the selection

of a smaller Hytork Actuator. Both space and cost savings can be achieved

Torque from

Spring
Rating

S40 53 32 52 31 73 52 94 73 115 94 135 114 156 135 177 156 219 198
S50 66 39 44 18 65 39 86 60 107 80 128 101 148 122 169 143 211 185
S60 79 47 - - 57 26 78 46 99 67 120 88 141 109 161 130 203 172
S70 92 55 - - - - 70 33 91 54 112 75 133 96 153 117 195 158
S80 105 63 - - - - 62 20 83 41 104 62 125 83 146 104 187 145
S90 118 71 - - - - - - 75 28 96 49 117 70 138 90 179 132
S1C 131 79 - - - - - - - - 88 36 109 57 130 77 172 119
S40 131 79 130 77 182 130 234 182 286 234 338 286 391 338 443 390 547 495
S50 164 98 110 45 162 97 214 149 267 201 319 253 371 305 423 357 527 462
S60 197 118 - - 143 64 195 116 247 168 299 220 351 273 403 325 508 429
S70 230 138 - - - - 175 83 227 135 279 188 332 240 384 292 488 396
S80 263 158 - - - - 155 50 208 103 260 155 312 207 364 259 468 363
S90 295 177 - - - - - - 188 70 240 122 292 174 344 226 449 331
S1C 328 197 - - - - - - - - 220 89 273 141 325 193 429 298
S40 247 148 244 146 342 244 440 342 539 440 637 538 735 636 833 734 1029 930
S50 309 185 207 84 305 182 403 280 502 378 600 476 698 574 796 672 992 869
S60 370 222 - - 268 120 366 218 465 316 563 414 661 513 759 611 955 807
S70 432 259 - - - - 329 157 427 255 526 353 624 451 722 549 918 745
S80 494 296 - - - - 292 95 390 193 489 291 587 389 685 487 881 683
S90 555 333
S1C 617 370 - - - - - - - - 414 168 513 266 611 364 807 560
S40 331 198 329 197 461 329 593 461 725 593 857 725 989 857 1121 989 1385 1253
S50 413 248 280 115 412 247 543 379 675 510 807 642 939 774 1071 906 1335 1170
S60 495 298 - - 362 164 494 296 626 428 757 560 889 692 1021 824 1285 1088
S70 578 347 - - 312 81 444 213 576 345 708 477 840 609 972 741 1236 1005
S80 661 397 - - - - 395 130 527 262 659 394 791 526 923 658 1186 922
S90 744 446 - - - - - - 477 180 609 311 741 443 873 575 1137 839
S1C 827 495 - - - - - - - - 560 229 692 361 824 492 1088 756
S40 463 278 458 273 641 456 825 640 1009 824 1193 1008 1377 1192 1560 1375 1928 1743
S50 578 347 388 157 572 341 756 525 940 708 1123 892 1307 1076 1491 1260 1859 1627
S60 694 416 - - 503 225 686 409 870 593 1054 777 1238 960 1422 1144 1789 1512
S70 809 486 - - - - 617 293 801 477 985 661 1168 845 1352 1028 1720 1396
S80 925 555 - - - - 548 178 731 361 915 545 1099 729 1283 913 1650 1280
S90 1041 624 - - - - - - 662 246 846 430 1030 613 1213 797 1581 1165
S1C 1156 694 - - - - - - - - 777 314 960 498 1144 682 1512 1049
S40 567 331 548 313 768 532 988 752 1208 972 1428 1192 1648 1412 1867 1632 2307 2072
S50 709 414 465 171 685 391 905 611 1125 831 1345 1050 1565 1270 1785 1490 2224 1930
S60 850 497 - - 602 249 822 469 1042 689 1262 909 1482 1129 1702 1348 2142 1788
S70 992 580 - - - - 739 327 959 547 1179 767 1399 987 1619 1207 2059 1646
S80 1134 663 - - - - 657 185 877 405 1096 625 1316 845 1536 1065 1976 1505
S90
S1C 1417 828 - - - - - - - - 931 342 1151 562 1370 782 1810 1221
S40 831 498 784 452 1105 772 1425 1093 1746 1413 2067 1734 2387 2055 2708 2375 3349 3017
S50 1039 623 659 244 980 564 1301 885 1621 1206 1942 1526 2263 1847 2583 2168 3224 2809
S60 1246 748 - - 855 357 1176 677 1497 998 1817 1319 2138 1639 2459 1960 3100 2601
S70 1454 872 - - - - 1051 470 1372 790 1693 1111 2013 1431 2334 1752 2975 2393
S80 1662 997 - - - - 927 262 1247 583 1568 903 1889 1224 2209 1544 2851 2186
S90 1870 1122 - - - - - - 1123 375 1443 695 1764 1016 2085 1337 2726 1978
S1C 2077 1246 - - - - - - - - 1319 488 1639 808 1960 1129 2601 1770
S40 1337 802 1289 754 1811 1277 2334 1799 2856 2322 3379 2844 3902 3367 4424 3890 5470 4935
S50 1671 1002 1088 420 1611 942 2133 1465 2656 1988 3179 2510 3701 3033 4224 3556 5269 4601
S60 2005 1203 - - 1410 608 1933 1131 2455 1654 2978 2176 3501 2699 4023 3221 5069 4267
S70 2339 1403 - - - - 1732 797 2255 1319 2778 1842 3300 2365 3823 2887 4868 3933
S80 2673 1604 - - - - 1532 463 2055 985 2577 1508 3100 2031 3622 2553 4668 3598
S90 3007 1804 - - - - - - 1854 651 2377 1174 2899 1696 3422 2219 4467 3264
S1C 3341 2005 - - - - - - - - 2176 840 2699 1362 3221 1885 4267 2930

Springs

Start End Start End Start End Start End Star t End Star t End Start End Start End Start End

1276 745 - - - - - - 794 264 1014 483 1233 703 1453 923 1893 1363

40 50 60 70 80 90 100 120

- - - - - - 353 131 452 229 550 327 648 426 844 622

Torques from air stroke (in-lb) at given operating air pressure (PSI)

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D67 Rev. 0 Page 2 of 2
October 2017

Hytork XL

Torque Data

Spring-Return Actuators (in-lb), XL1127 to XL4581

Model

Number

XL1127

XL1372

XL2586

XL4581

Note:

We recommends that the valve manufacturer supply the maximum required torque values (Including any adjustments or suggested safety factors for valve service
conditions or application). Additionally, the valve manufacturer must identify at which position(s) and direction(s) of rotation (Counterclockwise or Clockwise) these
maximum requirements occur.

S1C Spring-return

For all fail closed buttery valves and other Spring-return applications where 100 Psi air is available, Hytork’s optional S1C Spring Modules will often permit the selection

of a smaller Hytork Actuator. Both space and cost savings can be achieved

Spring
Rating

Torque from

Springs

Start End Star t End Start End Start End Start End Start End Star t End Start End Star t End

S40 2189 1312 2188 1311 3063 2186 3938 3061 4813 3936 5688 4811 6563 5686 7438 6561 9188 8311
S50 2736 1640 1860 764 2735 1639 3610 2514 4485 3389 5360 4264 6235 5139 7110 6014 8860 7764
S60 3283 1968 - - 2407 1092 3282 1967 4157 2842 5032 3717 5907 4592 6782 5467 8532 7217
S70 3830 2296 - - 2079 545 2954 1420 3829 2295 4704 3170 5579 4045 6454 4920 8204 6670
S80 4377 2624 - - - - 2626 873 3501 1748 4376 2623 5251 3498 6126 4373 7876 6123
S90 4925 2952 - - - - - - 3173 1200 4048 2075 4923 2950 5798 3825 7548 5575
S1C 5472 3280 - - - - - - - - 3720 1528 4595 2403 5470 3278 7220 5028
S40 2694 1616 2659 1581 3728 2649 4797 3718 5865 4787 6934 5856 8003 6924 9072 7993 11209 10131
S50 3368 2020 2255 907 3324 1976 4393 3045 5461 4113 6530 5182 7599 6251 8668 7320 10805 9457
S60 4041 2424 - - 2920 1302 3989 2371 5057 3440 6126 4509 7195 5577 8264 6646 10401 8784
S70 4715 2828 - - - - 3585 1698 4653 2766 5722 3835 6791 4904 7860 5973 9997 8110
S80 5389 3232 - - - - 3181 1024 4249 2093 5318 3161 6387 4230 7456 5299 9593 7436
S90 6062 3636 - - - - - - 3845 1419 4914 2488 5983 3557 7052 4625 9189 6763
S1C 6736 4040 - - - - - - - - 4510 1814 5579 2883 6648 3952 8785 6089
S40 5084 3051 5024 2991 7043 5010 9062 7028 11081 9047 13099 11066 15118 13085 17137 15103 21174 19141
S50 6355 3813 4262 1720 6281 3739 8299 5757 10318 7776 12337 9795 14356 11814 16374 13832 20412 17870
S60 7626 4576 - - 5518 2468 7537 4486 9555 6505 11574 8524 13593 10543 15612 12561 19649 16599
S70 8897 5338 - - - - 6774 3215 8793 5234 10812 7253 12830 9272 14849 11290 18887 15328
S80 10168 6101 - - - - 6011 1944 8030 3963 10049 5982 12068 8001 14086 10019 18124 14057
S90 11439 6864
S1C 12710 7626 - - - - - - - - 8524 3440 10542 5459 12561 7477 16599 11515
S40 8996 5398 8852 5254 12415 8816 15977 12379 19540 15941 23102 19504 26665 23066 30227 26629 37352 33754
S50 11246 6747 7503 3004 11065 6567 14628 10129 18190 13692 21753 17254 25315 20817 28878 24379 36003 31504
S60 13495 8097 - - 9716 4318 13278 7880 16841 11443 20403 15005 23966 18568 27528 22130 34653 29255
S70 15744 9446 - - - - 11929 5631 15492 9194 19054 12756 22617 16319 26179 19881 33304 27006
S80 17993 10795 - - - - 10580 3382 14142 6945 17705 10507 21267 14070 24830 17632 31955 24757
S90 20242 12145 - - - - - - 12793 4696 16355 8258 19918 11821 23480 15383 30605 22508
S1C 22491 13494 - - - - - - - - 15006 6009 18568 9571 22131 13134 29256 20259

40 50 60 70 80 90 100 120

- - - - - - 7267 2692 9286 4711 11305 6730 13324 8748 17361 12786

Torques from air stroke (in-lb) at given operating air pressure (PSI)

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D80 Rev. 0

October 2017

Torque Data

Double-acting Actuators (in-lb)

Hytork XL

Actuator

Model

XL26 DA 83 104 125 146 167 188 209 250

XL71 DA 209 261 313 365 417 469 522 626

XL131 DA 392 491 589 687 785 883 981 1177

XL186 DA 528 660 792 923 1055 1187 1319 1583

XL221 DA 735 919 1103 1286 1470 1654 1838 2205

XL281 DA 880 1099 1319 1539 1759 1979 2199 2639

XL426 DA 1283 1603 1924 2244 2565 2886 3206 3848

XL681 DA 2091 2613 3136 3658 4181 4704 5226 6272

XL1127 DA 3500 4375 5250 6125 7000 7875 8750 10500

XL1372 DA 4275 5344 6413 7481 8550 9619 10688 12825

XL2586 DA 8075 10094 12113 14131 16150 18169 20188 24225

XL4581 DA 14250 17813 21375 24938 28500 32063 35625 42750

Note:

We recommends that the valve manufacturer supply the maximum required torque values (Including any adjustments or suggested safety factors for valve service
conditions or application). Additionally, the valve manufacturer must identify at which position(s) and direction(s) of rotation (Counterclockwise or Clockwise) these
maximum requirements occur.

40 PSI 50 PSI 60 PSI 70 PSI 80 PSI 90 PSI 100 PSI 120 PSI

Torques from air stroke (in-lb) at given operating air pressure (PSI)

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D87 Rev. 0

October 2017

Envelope Dimensions

XL26 - XL4581 Imperial Actuators

CD

XL26 to XL221

Spring-Return and
Double-Acting Actuators

A

B

C

A

U

T

I

O

N

A

I

E

R

U

S

S

E

R

P

R

G

O

N

I

R

R

S

P

G

Hytork XL

E

F

CD

E

XL281 to XL4581

Spring-Return Actuators

A

B

G

CD

H

XL281 to XL4581

Double-Acting Actuators

A

B

G

Dim. in

Inches

A 4.11 4.82 5.45 5.67 6.30 6.93 6.65 8.03 9.21 9.80 11.57 15.35
B 3.03 3.74 4.37 4.61 5.24 5.98 5.79 7.09 7.87 8.46 10.24 14.02
C 1.77 2.24 2.52 2.80 3.07 3.43 3.39 3.74 4.57 4.88 -/- -/-
D 2.05 2.36 2.76 2.83 3.19 3.39 3.46 3.78 4.25 4.57 5.16 6.30
E 6.50 8.73 11.54 13.06 13.77 13.70 18.18 22.91 26.12 28.19 33.94 34.87

F 1.14 1.14 1.18 1.18 1.30 -/- -/- -/- -/- -/- -/- -/-

F1 -/- -/- -/- -/- -/- 1.73 1.65 2.05 2.20 1.97 1.93 2.99

G 3.39 4.06 4.80 4.96 5.59 6.02 6.18 6.89 7.83 8.50 10.00 12.64
H -/- -/- -/- -/- -/- 10.12 12.19 13.50 15.60 16.03 18.75 20.29

J -/- -/- -/- -/- -/- 0.94 1.42 1.42 1.42 1.42 1.42 1.42

XL26 XL71 XL131 XL186 XL221 XL281 XL426 XL681 XL1127 XL1372 XL2586 XL4581

J

Models

F1

F1

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Note:

e

according to

H

G

F

D

PCD ØC

4 Holes A
x B Deep
on PCD ØC

4 Holes D
x E deep

Centering ring
locations

4 Holes A
x B Deep
on PCD ØC

Note:

Note:

- Dimensions
in inches

- Valve ange
and drive
according to
ISO5211

H

G

F

D

D

PCD ØC

PCD ØC

4 Holes A
x B Deep
on PCD ØC

4 Holes D
x E deep

Centering ring
locations

4 Holes A
x B Deep
on PCD ØC

4 Holes A
x B Deep
on PCD ØC

Note:

Note:

- Dimensions
in inches

- Valve ange
and drive
according to
ISO5211

Product Data Sheet

D88 Rev. 0

October 2017

Hytork XL

Standard Drive and Bottom Mounting Details

XL26 - XL4581 Imperial Actuators

Basic Bottom Mounting Details

±0.01”C±0.01”

D unc E

Model ISO A unc B

XL 26 F05 1/4” 0.35” 1.97” 1/4” 0.35”

XL 71 F07 5/16” 0.47” 2.76” 5/16” 0.47”
XL 131 F07 5/16” 0.47” 2.76” 5/16” 0.47”
XL 186 F07 5/16” 0.47” 2.76” 5/16” 0.47”
XL 221 F07 5/16” 0.47” 2.76” 5/16” 0.47”

Model F

XL 26 1.39” 3.54” 1.39”

XL 71 1.95” 4.49” 1.95”

±0.007”G±0.006”H±0.007”

XL 131 1.95” 4.49” 1.95”
XL 186 1.95” 4.49” 1.95”
XL 221 1.95” 4.49” 1.95”

Models shown with optional Centering Ring tted

Additional Bottom Mounting Details

Model ISO A unc B

XL 26 F03 No10 x 24 0.32” 1.42” 1.00”
XL 71 F05 1/4” 0.35” 1.97” 1.39”

XL 131 F05 1/4” 0.35” 1.97” 1.39”

Models shown with optional Centering Ring removed to reveal
additional ISO mounting holes.

±0.01”

C

±0.01”

Basic Bottom Mounting Details

Model ISO A unc B

±0.01”

XL 281 F07 5/16” 0.47” 2.76” 1.95”

XL 426 F10 3/8” 0.59” 4.02” 2.84”

XL 681 F10 3/8” 0.59” 4.02” 2.84”
XL 1127 F12 1/2” 0.71” 4.92” 3.48”
XL 1372 F12 1/2” 0.71” 4.92” 3.48”

XL 2586 F16 3/4” 0.79” 6.50” 4.59”
XL 4581 F16 3/4” 0.98” 6.50” 4.59”

Standard Drive Details

Model ISO A

XL 26 F05 0.71” 1.1” 0.58” 0.55” 0.551/0.555” 0.09”

XL 71 F07 0.87” 1.8” 0.7” 0.66” 0.669/0.673” 0.09”
XL 131 F07 0.87” 1.8” 0.7” 0.66” 0.669/0.673” 0.09”
XL 186 F07 0.87” 1.8” 0.7” 0.66” 0.669/0.673” 0.09”
XL 221 F07 0.87” 1.8” 0.7” 0.66” 0.669/0.673” 0.09”
XL 281 F07 0.87” 1.8” 0.7” 0.66” 0.669/0.673” 0.09”

±0.004

B ØC D

XL 426 F10 1.11” 2.3” 0.9” 0.96” 0.866/0.871” 1.20”
XL 681 F10 1.11” 2.3” 0.9” 0.96” 0.866/0.871” 1.20”

XL 1127 F12 1.43” 2.8” 1.1” 1.16” 1.063/1.068” 1.00”
XL 1372 F12 1.43” 2.8” 1.1” 1.16” 1.063/1.068” 1.00”

XL 2586 F16 2.37” 3.9” 1.9” 1.91” 1.811/1.817” 1.40”
XL 4581 F16 2.37” 3.9” 1.9” 1.91” 1.811/1.817” 1.40”

C

±0.02

±0.01”

D

D

E F

±0.01”

±0.007”

±0.007”

±0.02

4 Holes A
x B Deep
on PCD ØC

H

4 Holes A
x B Deep
on PCD ØC

Across ats
Double square

Across
corners

E

F

PCD ØC

G

D

D

PCD ØC

A

45.0°

4 Holes D
x E deep

Centering ring
locations

4 Holes A
x B Deep
on PCD ØC

Hole depth

Drive
depth

DF

B

(Back bore)

Note:

- Dimensions
in inches

- Valve ang
and drive

ISO5211

C

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

C

ØA

ØB

D

E

0.161 / 0.157"

Ø0.26 / 0.25"

0.228 / 0.209"

0.205 / 0.197"

D

E

C

Pcd G

E

D

F

C

D89 Rev. 1 Page 1 of 2

February 2021

Top and Solenoid Mounting Details

XL26 - XL4581 Imperial Actuators

Pinion top details VDI/VDE3845 (NAMUR)

Model ØA ØB C D E

XL 26

XL 71
XL 131

XL 186

XL 221

XL 281

XL 426

XL 681

XL 1127
XL 1372

XL 2586
XL 4581

0.969” /

0.965”

1.201”/

1.181”

1.752”/

1.732”

2.539”/

2.52”

2.736”/

2.717”

2.736”/2.52”

3.56”/

3.54”

3.76”/

3.74”

0.653”/

0.650”

0.925”/

0.917”

1.713”/

1.705”

2.642”/

2.634”

2.815”/

2.807”

0.551”/

0.545”

0.670”/

0.663”

0.866”/

0.86”

1.417”/

1.411”

1.575”/

1.569”

0.791”/

0.783”

1.185”/

1.177”

0.645”/

0.63”

0.539”/

0.524”

0.496”/

0.488”

0.712”/

0.705”

C’ bore depth

Slot depth

Slot width

Hytork XL

C’ bore

Flat length

M6 Thread

Accros ats

Top Mounting details VDI/VDE3845 (NAMUR)

XL 26 - XL221

Thread A x B
deep

Model A unc B C D E ISO F H J G

XL 26 No10 x 24 0.24” 1.18” 3.15” - -/- -/- -/- -/- -/-

XL 71 No10 x 24 0.24” 1.18” 3.15” - -/- -/- -/- -/- -/­XL 131 No10 x 24 0.24” 1.18” 3.15” 5.12” -/- -/- -/- -/- -/-
XL 186 No10 x 24 0.24” 1.18” 3.15” 5.12” -/- -/- -/- -/- -/-
XL 221 No10 x 24 0.24” 1.18” 3.15” 5.12” -/- -/- -/- -/- -/-
XL 281 No10 x 24 0.315” 1.18” 3.15” 5.12” F07 1.95 5/16”-18 0.47 2.76
XL 426 No10 x 24 0.315” 1.18” 3.15” 5.12” F10 2.84 3/8”-16 0.59 4.02
XL 681 No10 x 24 0.315” 1.18” 3.15” 5.12” F10 2.84 3/8”-16” 0.59 4.02

XL 1127 No10 x 24 0.315” 1.18” 5.12” - F12 3.48 1/2”-13 0.71 4.92
XL 1372 No10 x 24 0.315” 1.18” 5.12” - F12 3.48 1/2”-13 0.71 4.92

XL 2586 No10 x 24 0.315” 1.18” 5.12” - F16 4.59 3/4”-10 0.79 6.50
XL 4581 No10 x 24 0.315” 1.18” 5.12” - F16 4.59 3/4”-10 0.79 6.50

XL 281 - XL4581

Thread A
x B deep

Thread H
x J deep

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D89 Rev. 1 Page 2 of 2

February 2021

NAMUR Solenoid Mounting details

Hytork XL

XL26 - XL221 XL281 - XL4581

Additional drilling pattern

XL2586 and XL4581

0.94"

0.47"

0.63"

1.26"

4 Holes thread

10-24 x 0.315” deep

2 Holes thread

1/4”NPT x 0.47” deep

1.26"

0.63"

0.94"

0.47"

10-24 x 0.315” deep

2.60”

2 Holes thread

Note:

* “Opening” or “Closing” port operation, as shown, is for standard (Spring-to-Close) actuators.

Additional Front mounting patterns (XL26 to XL221)

0.67”

3.15”

0.59”

4 Holes thread

M x N deep

L

J

K

Dimensions in inches

Model F J K L M N

XL26 1.14 1.22 1.81 1.26 10-24 0.26

XL71 1.14 1.33 2.31 1.26 10-24 0.26
XL131 1.18 1.86 2.85 1.34 1/4”-20 0.26
XL186 1.18 2.41 3.40 1.34 1/4”-20 0.26
XL221 1.30 2.46 3.44 1.46 1/4”-20 0.26

J

K

F

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

1

2

3

Actuator interface
according VDI/VDE3845
(NAMUR)

D190 Rev. 0 Page 1 of 2
October 2017

Spring-return actuator with High Flow Plate

Increase the cycle speed of spring-return actuators

Description:

The High Flow Plate is a simple means to increase the
cycle speed (and reduce the cycle time) on single

acting (Spring-return) pneumatic actuators.

Cycle speed:

In general pneumatic rack and pinion actuators are
equipped with large internal air porting that allows
adequate cycling under normal circumstances.

On the other hand, the 1/4” solenoid valves or
pneumatic tting materials, limit the maximum speed
potential of the actuator due to the orice diameter.

Under normal operation conditions, the achieved cycle

speed is sufcient.

If faster cycle times are required (<0.5 or <1 second)

1/4” solenoid valves or pneumatic tting material can

become a problem. These components will, in this
case, function as a throttle, reducing the potential

maximum air ow and as such the maximum cycle

speed.
The High Flow Plate solves this problem. High Flow

plates can be supplied with 1/2” air connections to
allow the tting of larger solenoid valves and
pneumatic tting material.

Construction:

The High Flow Plate is a aluminum plate which can be
mounted directly to solenoid interface on actuators

which are designed according VDI/VDE 3845 (NAMUR).

The plate is supplied with fasteners and seals.

The customer side of the plate is equipped with 1/2”

NPT or BSP air connections for piped solenoid control.

Specications:

Materials:
1 Block: Aluminium alloy,

black anodized (10-15 µm)
2 Fasteners: Stainless steel
3 O-ring seals: NBR Rubber

VA306.00.310 1/2” NPT
VA306.00.320 1/2”BSP

Note:

1 The High Flow Plate on its own does not make the

cycle time of an actuator quicker. Take care that

there is sufcient air supply capacity at actuator:

- Air supply capacity must be larger than the Cv or

- Use tubing with sufcient large diameter.

- Make tubing from the main air supply to the

2 For the largest size actuators enlarging the port to

the central air chamber to 1/2” can be considered to

achieve the required cycle speed.

3 Consider the use of Quick Exhaust valves in

combination with these High Flow Plates.

4 In general the actuators life cycle is reduced when

cycling very fast.

- For valves that cycle not that often, the total life

- For applications with increased cycle speed, that

Please consult your nearest HYTORK representative for
more detailed information.

Part nr: Execution:

Kv value of the control solenoid valve.

actuator as short as possible.

cycle will still be sufcient.

do cycle often, external limit stops (bottom stop
plate) are recommended, especially on the larger
size actuators.

Hytork XL

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D190 Rev. 0 Page 2 of 2
October 2017

Dimensions:

Hytork XL

Dimensions in

A 63.5 2.50

B 82 3.23

C 25.4 1.00

D 32 1.26

E 25 0.98

F 16 0.63

G 29 1.14

H 12 0.47

J 27 1.06

K 1.27 0.05

L 1/2”BSP 1/2”NPT

M 1/4”BSP 1/4”NPT

mm Inch

K

1/2”

C

L

E

B

M

H

G

J

F

D
A

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D113 Rev. 0
October 2017

Envelope Dimensions

XL2586 / XL4581 Actuators with Stop Blocks (Imperial)

C

D

ABF

G

E

Hytork XL

Spring-Return Units

Models A B C D E F G

XL2586 11.50’’ 10.24’’ 9.96’’ 5.16’’ 33.94’’ 13.31’’ 1.81’’ 21.0 195.0
XL4581 15.28’’ 14.02’’ 12.64’’ 6.30’’ 34.80’’ 17.09’’ 1.81’’ 21.0 334.0

C

D

A BF

G

H

Weight (lbf)

Block Assembly

Double-Acting Units

Models A B C D H F G

XL2586 11.50" 10.24" 9.96" 5.16" 18.39" 13.27" 1.81" 21.0 122.0
XL4581 15.28" 14.02" 12.64" 6.30" 20.28" 17.05" 1.81" 21.0 204.0

Weight (lbf)

Block Assembly

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D112 Rev. 0
October 2017

Hytork XL

Air Consumption

XL26 to XL4581(Imperial Data)

3

Actuator

Model

XL26 18 21 25 28 32 36 39 46

XL71 45 54 63 72 80 89 98 116
XL131 86 103 120 137 154 172 189 223
XL186 114 137 160 183 205 228 251 296
XL221 154 185 216 247 278 309 340 401
XL281 191 229 267 305 343 381 419 495
XL426 271 324 377 431 484 537 590 697
XL681 428 512 595 679 763 846 930 1097

XL1127 714 854 994 1134 1273 1413 1553 1833
XL1372 867 1037 1207 1377 1547 1717 1887 2227

XL2586 1585 1892 2200 2508 2815 3123 3431 4046
XL4581 2673 3184 3696 4208 4719 5231 5742 6766

40 50 60 70 80 90 100 120

Consumption per stroke (in

Pressure in PSI / Outward stroke

)

Actuator

Model

XL26 25 31 36 42 47 52 58 69

XL71 68 83 98 113 127 142 157 186
XL131 137 167 197 227 257 287 316 376
XL186 179 218 257 296 335 374 413 492
XL221 244 298 351 404 458 511 565 671
XL281 198 237 277 317 357 396 436 516
XL426 259 309 359 410 460 510 560 661
XL681 444 532 620 707 795 883 971 1146

XL1127 712 851 991 1130 1269 1408 1548 1826
XL1372 858 1026 1193 1361 1528 1696 1864 2199

XL2586 1521 1812 2104 2396 2687 2979 3271 3854
XL4581 2876 3438 4001 4563 5126 5688 6251 7376

40 50 60 70 80 90 100 120

Consumption per stroke (in

Pressure in PSI / Inward stroke

OUTWARD STROKE on

Spring-return and

3

)

INWARD STROKE on

Double-acting actuators

Double-acting actuators

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]

Product Data Sheet

D105 Rev. 0
October 2017

Hytork XL

Free Air Volume at Atmospheric Pressure

XL26 to XL4581 Imperial Data

Actuator

Model

XL26 5.2 1.51 3.69

XL71 13.1 3.92 9.18

XL131 25.13 7.53 17.6

XL186 33.45 10.24 23.21

XL221 45.41 14.76 30.65

XL281 55.97 17.53 38.44

XL426 78.26 20.36 57.9

XL681 123.01 29.94 93.07

XL1127 205.48 50.66 154.82

XL1372 249.74 62.22 187.52

XL2586 452.16 98.19 353.97

XL4581 751.86 125.59 626.27

Double and Single Acting

Central Chamber Volumes (in3)

Open Closed Displaced

Actuator

Model

XL26 4.28 7.97 3.69

XL71 12.53 21.71 9.18

XL131 26.32 43.92 17.6

XL186 34.15 57.36 23.21

XL221 47.83 78.48 30.65

XL281 20 58.44 38.44

XL426 15.96 73.86 57.9

XL681 35.9 128.97 93.07

XL1127 49.88 204.7 154.82

XL1372 58.79 246.31 187.52

XL2586 74.69 428.66 353.97

XL4581 200.29 826.56 626.27

Open Closed Displaced

Double-Acting ONLY

End Cap Chamber Volumes (in3)

Actuator
Open

Actuator
Closed

Spring-Return and

Double-Acting Actuators

Air in Central

Chamber

Double-Acting Actuators

Actuator

Open

Air in End

Chambers

Actuator

Closed

Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website www.emerson.com/hytork or from your
Emerson Automation Solutions - Actuation Technologies Center: America’s: [phone] Europe: [phone] Asia/Pacic: [phone] Middle East: [phone]