SERIES ''S'' ACTUATOR

SPEC I FICATI 0 NS

Pressure Range: 30 psig to 120 psig = double acting 30 psig to 120 psig = spring return maximum working pressure = I 45 PSIG

Media: Dry or lubricated air. non corrosive gas, water or light hydraulic oil

Temperature Range: Standard minus 20"F to plus 212"F, on request= high temperature units to 302"F

= lower temperature units Rotation: Clockwise when port 'A' is pressurized for double acting actuators

Anti-clockwise for spring return actuators (see principle of operation)

Stroke: 90" (+I- 5")

Lubrication: All moving parts are factory lubricated for cycle life of the actuator

Extended Travel Stops in Both Directions: Standard adjustable +5" or - s· over 90" stroke

INTRODUCTION

onstruction: Suitable for indoor or outdoor application

Dimensions: For valve mounting in accordance with ISO 521 I top-work and pinion to NAMUR

Connections: Bottom drilling to assemble valve is in accordance with I.S.O. 5211 I DIN 3337. Interface for solenoid valve, top, shaft and top drilling to assemble accessories are in accordance with VDI I VDE 3845 NAMUR

Special Actuators on Request: Please Consult Factory

The ~ r double and spring return pneumatic rack and pinion actuators offer excellence in standards of safety, reliability and value. Our rack and pinion actuators are designed to operate "quarter turn valves". The wide torque range capabilities ensure that our units are more than suitable for ball, plug, and butterfly valve applications.

Review the features and benefits that we offer. Check the specifications, and you'll find that dollar for dollar

offers one of the best valve actuators in the industry.

27

Double Acting Actuator

Counter Clockwise Output Rotation

Exhaust

'

~ Alrln

L_j (Port 'A') (Port 'B')

Spring Return Actuator

Clockwise Output Rotation

'

Exhaust

(Port 'A')

ACTUATOR PRINCIPLE OF OPERATION

Selection of Double Acting Actuators Determme the requored valve torque. this should include 25% safety margin. and the minimum operatmg pressure available. Refer to the pressure I torque table and select the minimum pressure column applicable. Follow this column down until a value not less than that required is found. Next read across to the left hand column and read the model number to be ordered.

Remark: The chosen torque value, which apply to the type of actuator should never be lower than the required torque value of the valve.

Principle of Operation Counter clockwise output: operation is achieved by inserting pressure into Port 'A', to force t:he postons apart thus rotating the actuaror pinion counter clock­wise. During this operation, air from the outer chambers Is exhausted through Port 'B'. Clockwise output operarlon is achieved by reverse of the above and inserting pressure Into Port 'B'.

Clockwise Output Rotation

fi ' Air In Exhaust

(Port 'A') (Port 'B'}

Selection of Spring Return Actuators Determine l:he required valve torque, this should include 25% safety margin. and the minimum operating pressure available. Select from the "Spring Stroke I "0"' table a value chat is not less than the required valve torque (including safe­ty marg1n). Next refer to the pressure cable and select under your minimum pressure and " 0 "" torque column a figure not less than that required.

Principle of Operation Pressure applied to Port 'A' will cause me inner chambers to be pressurized, forcing the pistons outward to compress the springs. The pinion is rotated counter clockwise. Upon release of pressure through Port 'A' the springs will exert pressure w dose the pistons and rotate the pinion clockwise rapidly. This action will often be used to close a 90" tUrn valve in shut­down mode.

Counter Clockwise Output Rotation

(Port 'A') 28

E

D c

"NAMUR" connection for solenoid valve

B

------~-~~-_::_:_:___ ____ _

Weights (Lbs) Model API AP2 AP3

Double Acting 1.87 3.57 6.43

Spring Ret urn 2.38 3.83 6.96

Dimensions Model A B c D E F

API 5.39 2.36 2.63 3.42 0.78 1.65

AP 2 5.90 2.87 3.26 4.05 0.78 1.65

AP 3 8.03 3.34 3.93 4.72 0.78 1.96

AP 3.5 9.25 3.85 4.33 5. 11 0.78 1.96

AP 4 10.60 4 33 4.92 5.70 0.78 1.96

AP4.5 12.00 5.03 5.59 6.77 1. 18 2.28

AP 5 14.10 5.51 6. 10 7.28 1. 18 --AP 5.5 14.90 6.29 6.92 8. 11 1. 18 --AP 6 18.10 6.88 7.87 9.05 1. 18 --AP 8 20.80 8.46 9.84 11.8 1.96 --

F

AP3.5

9.2 15

10.270

G H

1.61 I f 8"

1.75 I f 4"

1.94 I / 4"

2.08 I / 4"

2.28 I / 4"

2.71 I / 4"

-- 1 / 4"

-- I 14"

-- I 14''

- I 14"

0

3.1 4

3.14

3.14

3.1 4

3 .1 4

3. 14

3. 14

3. 14

3. 14

-

ACTUATOR DIMENSIONS

HOLES according to ISO 5211

r-[~r-~,--1-----1 ------. ~~h r--1----t--t-ff~<)l-©-· --- -- - --@)---©-

a --d\--,_. -: ·~ ·-@· · ~· ·~· + ![ . '-------+----t-t---«:-: - -~- -- - ·-- -- {)---~-

AP4

12.91

13.97

p

---------

5. 11

5. 11

5. 11

5. 11

5.1 1

I~YH~~------~-~I +D~J

AP4.5 AP5

18.95 24.64

21.60 28.98

Q R s T

1.1 8 1.4 1 0.35 M5 1.18 1.65 0.43 M5

1.18 1.96 0.55 M 6

1. 18 2.75 0.66 M B

1. 18 2.75 0.66 M8

1. 18 4.01 0.86 M 10

1. 18 4.01 0.86 M 10

1. 18 4.92 1.06 M l2

1.18 4.92 1.06 M 12

1.18 5.51 14 1 M 16

0

p

A

APS.S

33.50

4 1.44

ISO 5211

F03

F04 I FOS

FOS I F07

F07

F07 I Fl O

Fl O FlO

F l2

F12

Fl4

AP6 AP8

46.73 94.79

54.23 120. 10

Multi drive adaptors available to suit variable butterfly valve shaft designs for direct mounting

29

MtJterial Ust Item Qty Part Name Material

Actuator Body Aluminum Alloy

2 2 Pinon Aluminum Alloy

2 End- Cap Aluminum Alloy

4 I Pinion Carbon Steel

* 5 2 Piston Guide Acetal Resin .. 6 Pinion Guide Ring Acetal Resin

* 7 "0" Ring Nitrile Rubber

* 8 Pinion Guide Ring Acetal Resin

* 9 "0" Ring Nitrile Rubber

10 Circllp Stainless Steel

II Thrust Washer Acetal Resin ,. 12 2 Plug Nitrile Rubber

13 "- 12 Preloaded Springs Steel

14 2 Screw Extemal Stroke Stainless Steel

15 2 "0" Ring Nitrile Rubber

16 2 Plain Washer Stainless Steel

17 2 Stop Nut Stainless Steel

18 8 End Cap Bolts Stainless Steel

• 19 2 ''0" Ring Nitrile Rubber

• 20 2 Piston Guide Ring Acetal Resin

• 21 2 "0'' Ring Nitrile Rubber

22 Cirdip and -blow out Stainless Steel

* Sugge.tted Spare Parts Ust for Maintenance.

Actuator ILLUSTRATION

31

ACTUATOR TORQUE SPECIFICATIONS

Torque Output, Double Acting Actuator, ln. Lbs. Operating Pressure psi

Model 30 40 50 60 70 80 90 100 120

API DA 52 70 89 107 126 141 157 179 2 10

AP2 DA 83 113 111 172 201 266 251 285 339

AP3 DA 178 240 303 365 428 ~81 535 606 713

AP 3.5 DA 303 409 SIS 621 727 818 909 1031 1213

AP4 DA 428 578 727 877 1027 1156 1284 1455 17 12

APHDA 777 1049 IJ21 1594 1866 2099 2333 2643 3149

AP5 DA 990 1336 1683 2029 2375 2672 2969 3365 4009

APS.S DA 13~ 1868 2353 2837 3321 3737 4153 -4706 5606

AP6 DA 2024 2733 3-442 4150 4858 5466 6073 6883 8200

Al'8 DA 3800 5127 6457 7787 7117 10259 11399 12919 153~

Air Consumption Cu. Ft.

Model API AP2 APJ APJ.S AP4 AP4.5 APS APS.S AP6 AP8 DAJSR DAJSR DAJSR DAJSR DAJSR DAISR DAJSR DAJSR DAJSR OAJSR

Counter 0.08 0.12 O.H 0.18 0.68 1.00 1.40 1.60 3.20 SJO Clockwise

OockW>Se 0. 10 0.16 0.-44 0.56 0.96 1.60 2.16 2.56 4.00 8.60 {DAOnly)

Mounting Variations Closed Closed

A c --- --- ------

B

Opening I Closing Time (Sec.) 80 psi

Model API APl APJ APJ.S AP4 AP4.5 APS APS.S AP6 AP8

Double Actlng LessThM Less Then less Then Less Then Less Then LessTI1en Less Then Less Then 1.5 . 2 3. 4 0.5 Sec I Sec I Sec I Sec I Sec I Sec 1.25 1.5 Sec Sec

Spring Return Less Then Less Then Less Then Less Than Less Then Less Then 1.5 . 2 Less Then 2-3 4. 6

0.5 Sec I Sec I Sec I Sec I Sec I Sec Sec 2 Sec Sec Sec 32

ACTUATOR TORQUE SPECIFICATIONS

Torque Output, Spring Return Actuator, ln. Lbs. N of Spring Operating Press.ure psi

Model For Each ao 40 60 70 80 100 Spring S[J'1)ke S!d or p tltlon

0 90 0 90 o· 90 0 90" 0 90 0 90" 90 o· 2 31 21 49 39 86 76 104 94 120 110 157 148 31 11

3 - -- 38 21 75 61 93 79 109 95 147 132 46 32 API SR 4 - - 27 8 65 45 8J 63 99 79 136 116 62 42

s - - - - 54 30 72 48 88 64 125 101 n 53

6 .. - - - - - 61 32 77 48 115 85 93 64

2 50 33 79 63 138 122 167 lS I 192 176 251 235 50 33 l - - 62 38 121 97 150 126 175 151 234 210 74 50

AP2SR 4 - - 45 13 104 72 Ill 101 158 126 217 185 99 67

5 - - - - 87 '17 116 76 141 101 200 160 124 8'1 6 -- - - -- - - 99 51 124 76 183 135 149 101

2 107 71 169 133 294 258 356 321 410 374 535 499 107 71

3 71 17 133 80 258 205 321 267 371 321 49'3 446 160 107

APJ SR 4 - - 98 26 223 151 285 21-4 339 267 463 392 211 142

5 - - - -- 187 89 249 160 303 214 428 339 267 178

6 ·- - .. - ·- -· 214 107 267 160 392 285 321 214

2 218 116 314 222 537 431 643 510 731 631 946 8'13 187 84 3 133 26 239 131 452 345 558 451 649 542 861 754 276 169

AP3.5 SR 4 ·- -- - -- 398 193 504 299 595 390 808 603 428 223

5 .. -- - .. 336 157 442 264 533 355 745 567 '163 285

6 .. - - - 282 59 388 165 479 256 692 169 562 339

2 264 173 -414 322 711 622 864 rn 992 900 1292 1200 255 163

3 178 44 328 191 628 191 1n 644 906 n2 1206 1072 383 249

AP4 SR 4 - -- 248 69 547 369 697 519 826 647 1125 947 508 330

5 - -- - .. 467 235 617 J85 7-45 513 1045 813 642 410

6 .. -- - ·- 387 110 537 260 665 388 965 688 767 490

2 <4'17 246 716 575 1290 1118 1562 1390 1796 1624 2340 2168 475 303

3 167 147 534 303 1024 792 1268 1037 1478 1247 1968 1736 712 454

AP4.5 SR 4 .. -- 443 99 987 643 1259 915 1493 1148 2037 1693 950 606

5 -- -- - - 835 405 1107 6n 1341 910 1885 1454 1189 758

6 - - - - - - 956 438 1189 672 1734 1216 1427 909

2 603 387 950 733 1643 1126 19'30 tnJ 1286 2069 2979 2762 603 386

3 419 89 765 435 1458 1128 1805 1475 2101 1771 2794 2464 900 570 APS SR. 4 -- - 569 132 1262 825 1609 1177 1905 1468 2598 2161 1204 767

5 ·- - -- - 1065 521 1412 860 1709 liftS 2402 1858 1507 963 6 - - -- - 869 218 1216 565 1512 861 1205 1554 1810 II 59

2 879 492 1363 976 2332 1945 2816 2429 3232 2845 4201 3814 892 504

3 627 344 II II 530 2080 1499 2564 1983 2980 2399 3948 3368 1338 757 APS.S SR " ·- - 858 .. 1926 1053 2311 1537 2726 1953 3695 2922 1784 10 10

5 - - - - 1574 607 2058 1091 H74 1507 3443 2476 2230 1263 6 - - -- - 1321 396 1805 645 2221 1061 3189 2030 2676 1516

2 1281 n6 1992 1481 3410 2901 1118 3609 4725 4217 6143 5634 1248 740

3 909 151 1618 859 3035 2277 3743 2985 4351 3593 5768 5010 1873 1115 AP6 SR. 4 - - 1243 235 2660 1652 3369 2361 3976 2968 5393 ~386 2-497 1188

s - - - - 2.286 1018 2994 1736 3601 234-4 5019 3761 3112 1864 6 - - - - 19 11 404 2619 1112 3227 1719 4644 3137 3746 2238

2 2372 1552 3702 2882 6362 5542 7692 6872 8832 BOll 11400 10670 2247 1427

3 1659 428 2989 1758 5649 4418 6979 5748 8119 6888 10776 9>-46 3371 2140

AP8SR " - - 2275 634 4935 3294 6265 4624 7405 5764 10065 8424 4495 2854

5 - - - - 4121 2170 5551 3500 6691 4640 9351 7300 5619 3568

6 - -- - - 3508 1064 4838 2376 5978 3516 8638 6176 6743 4298

Proper Arrangement of Springs

• • • " SR-2 SR-3 SR-4 SR-5 SR-6 33