Control Products ST110DA User Manual

DOUBLE ACTING
SPRING RETURN

ST - FEATURES

l Double Rack & pinion.
l High corrosion Resistance.
l Pinion supported on

delrin Bearings.

PNEUMATIC ACTUATOR DOUBLE ACTING

l Maximum Working Pressure

120 Psi.

l Lubrication not necessary.

l Tested to more than 1 million cycles.
l Anti-blow out pinion.
l Can be converted to single acting

by just adding springs.

END STROKE (0°)

l Setting screw provided

on piston.

l Set the closing position

against the pinion.

l -10º setting possible for

closing.

2

END STROKE(90°)

l Setting screw provided on

end cover.

l Set the opening position

against the piston.

l +10º setting possible for

opening.

ANTI BLOWOUT

l Lock key provides a firm

lock to the pinion, thus
eliminating movement
under pressure.

PNEUMATIC ACTUATOR SPRING RETURN

l Unique Spring Retainer

construction.

l Ease of handling & greater

safety while dismantling.

l Eliminates need of special

tools & keys.

l Spring life time lubricated.

l Precompression leads to

longer spring life.

l Modular spring construction allows

combination of springs to generate
variety of torques.

l Body epoxy painted after hard anodizing

l Tested to more than 1 million cycles.
l Anti blowout pinion.

RACK & PINION

l Pressure Die cast piston

with in built Rack.

l High wear resistance due to

compact grain structure on
surface.

l Life time Lubricated.
l Strong tooth profile for high

load bearing capacity.

ISO PAD

l Valve mounting as per

ISO 5211 with an additional
one size higher pad.

l Standardization of mounting

accessories.

l ISO Ring for precise location.
l Octagonal drive shaft for ease

of mounting.

SPRING

l Gr.III Spring steel Epoxy

Coated for high corrosion
resistance.

l Modular Springs set to suit

various valve torque
characteristics.

l Life Time Lubricated.
l Non Buckling Modular

Spring design.

3

MODEL AA
3 POSITION ROTARY ACTUATOR
DOUBLE ACTING / SPRING RETURN
3 POSITION MECHANICAL STOPPER

FEATURES

Actuators are suitable for 0°-90°-180° operation.

In double acting the third position is achieved by pneumatic
operated stoppers.
Repeatability is 100% since stopping is by mechanical stopper.
Makes it suitable for application calling for precise positioning.
Actuator can be switched to one position from any position
very easily with the solenoid control.

End stops +/- 10° are provided on the closing side of the
actuator for setting valve closing precisely.

Single acting actuator are provided with spring to achieve mid
position using a spring capsule. The capsule is preloaded to
achieve the closing and opening by solenoid valve and on
power failure the actuator returns to mind position.

MODEL BB
180 DEGREE ROTARY ACTUATOR
DOUBLE ACTING / SPRING RETURN

FEATURES

Suitable typically for 3 way valves requiring
ON - OFF operation.

Available in both Spring Return
or Double Acting Versions.

Can be converted to 3 Position, for e.g. 0° - 90° - 180°
actuator for 3 way valves using SONIC
Switch & SONIC Solenoid TYPE 30138.

End Stop adjustment provided for opening
direction as a standard.

Actuator mounting is as per ISO 5211 &
accessories to NAMUR.

Refer dimension table on page 7.

Refer torque tables on page 10 & 11.

For weights & air consumption data refer table
on page 8

Refer Dimension Table on page 6

4

MATERIAL OF CONSTRUCTION
CROSS SECTION DRAWING

0706 15 18 03 14 10 16 12 23

24

04 13 09 08 21 05 17 2002 11 22 01 19

PART LIST

PART NO. DESCRIPTION QTY MATERIAL SPECIFICATION

01 1 ALUMINIUMBODY EN6351 T6
02 COVER 2 ALUMINIUM LM 6
03 PISTON WITH RACK 2 ALUMINIUM LM 6
04 PINION 1 STEEL EN 8
05 BEARING BUSH 1 DELRIN
06 1DELRIN RING DELRIN ­07 ANTI BLOW OUT KEY 2 DELRIN ­08 WASHER 1 DELRIN ­09 WASHER 1 STAINLESS STEEL SS 304
10 SOC.HEAD CAP SCREW 8 STAINLESS STEEL SS 304 (DIN 912)
11 SOCKET SET SCREW 2 STAINLESS STEEL SS 304 (DIN 913)

14 Q-SEAL 2 NBR NBR 70°A
15 PISTON SEAL 2 NBR NBR 70°A
16 O-RING 4 NBR NBR 70°A

17 PINION GUIDE 1 DELRIN ­18 PISTON GUIDE 2 DELRIN ­19 STROKE ADJ.SCREW 1 STAINLESS STEEL SS 304
20 O-RING 1 NBR NBR 70°A
21 O-RING 1 NBR NBR 70°A
22 HEX NUT 2 STAINLESS STEEL SS 304
23 SPRING * SPRING STEEL GR-III (EN44B)
24 O-RING 2 NBR NBR 70° A

-

SS 30412 LOCK NUT 2 STAINLESS STEEL
DIN 471, IS 307513 EXTERNAL CIRCLIP 1 SPRING STEEL

* The number of springs depend upon size of the actuator & the spring set selected.

5

DOUBLE ACTING & SPRING RETURN 90º & 180º

DIMENSIONAL DETAILS

R

S S

M5X8

T

E

D
F

G

6

12

ø6.1

M6

4

4

ACTUATOR

MODEL ST32 SR ST40 SR ST50 SR ST63 SR ST250 SRST200 SRST175 SRST150 SRST125 SRST110 SRST100 SRST90 SRST80 SR

INCHmm

N A/F

DIMENSIONS

T- NPT
CH-90°

CH-1 ,180°

A
B
C
D
E
F

G
H

L

M

O

P

Q

Q1

R
S

W

W1

V

ØZ

DETAIL-’X’

B

MODEL OPTION ‘DD’

ST32 DA

5.4

1.92

2.2

C
O

L M

V

ST40 DA

5.56

3.11

2.56

R

DEPTH X

ST50 DA

6.65

ØZ

3.11

2.56

M5X8

M5X8

ST63 DA

7.75

3.7

3.15

P

X

ST80 DA

8.25

4.29

3.78

A

H

Z

ST90 DR

8.75

5.51

4.81

N

Y

I

ST100 DA

10.2

5.51

4.81

45º

45º

4NOS.TAPPED

ON ‘Q1’ PCD.

ST110 DA

11.6

5.9

5.59

CH

‘W1’

ST125 DA

13.3

5.9

5.59

DETAIL-’Y’

4NOS.TAPPED ‘W’
ON ‘Q’ PCD.

CH-90º

CH-1 ,180º

DETAIL-’Z’

ST150 DA

ST175 DA

14.4

7.08

6.85

19.5

7.08

6.85

ST200 DA

21.6

9.64

10.4

ST250 DA

27.2

9.64

10.4

- - - 4.13 5.475.475.475.475.474.134.134.134.13

- - - 0.87 0.870.870.870.870.870.870.870.870.87

1.96

1.00

0.94

I

0.39

1.00

1.22

0.31

0.39

0.79

1.42

0.48

0.62
1/8"

0.36

0.36

M5

12.1

12

3.15

1.18

1.18

0.56

1.28

1.54

0.31

0.39

0.79

1.42

-

1.97

0.48

0.62
1/4"

0.44

0.36

M5

-

9

M6

11

14.1

15

3.15

1.18

1.18

0.56

1.28

1.54

0.36

0.48

0.79

1.42

1.97

0.48

0.62
1/4"

0.44

0.36

M5
M6

11

14.1

15

3.15

1.18

1.26

0.67

1.58

1.83

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

14

18.1

21

3.15

1.18

1.58

0.67

1.89

2.15

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

22.2

21X

3.15

1.18

1.58

0.67

2.40

2.52

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

1717

25

3.15

1.18

1.89

0.99

2.40

2.52

0.44

0.59

0.79

2.76

4.02

0.48

0.62
1/4"

0.87

0.56

M8

M10

22

26.222.2

25

3.15

1.18

1.89

0.99

2.80

2.92

0.59

0.79

0.79

2.76

4.02

0.48

0.62
1/4"

0.87

0.56

M8

M10

22

28.2

25

5.12

1.18

2.37

0.99

2.80

2.92

0.59

0.79

0.79

2.76

4.02

0.48

0.62
1/4"

0.87

0.56

M8

M10

22

28.2

5.12

1.18

2.56

1.14

3.43

3.55

0.59

0.79

0.79

4.02

4.92

0.48

0.62
1/4"

1.07

0.87

M10
M12

27

36.2

3530

5.12

1.18

3.55

1.14

3.43

3.55

0.95

1.18

0.79

4.02

4.92

0.48

0.62
1/4"

1.07

0.87

M10
M12

27

36.2

35

5.12

1.18

3.55

1.58

5.20

5.20

0.95

1.18

0.79

4.02

5.51

0.48

0.62
1/4"

1.42

1.07

M10
M16

36

48.2

50

5.12

1.18

4.81

1.58

5.20

5.20

0.95

1.18

0.79

-

5.51

0.48

0.62
1/4"

1.42

1.07

-

M16

46

60.2

65

6

3 POSITION ACTUATOR
DIMENSIONAL DETAILS

R

S
S

R

C
O

L M

V

DEPTH X

ØZ

ST32 DA

9.37

1.92

2.2

ST40 DA

9.49

3.11

2.56

- - - 4.13 5.475.475.475.475.474.134.134.134.13

- - - 0.87 0.870.870.870.870.870.870.870.870.87

1.96

1.00

0.94

0.39

1.00

1.22

0.31

0.39

0.79

1.42

0.48

0.62

3.15

1.18

1.18

0.56

1.28

1.54

0.31

0.39

0.79

1.42

-

1.97

0.48

0.62

1/8"

0.36

0.36

0.44

0.36

M5

-

9

12.1

14.1

12

ACTUATOR

MODEL

INCHmm

N A/F

DIMENSIONS

T- BSP
CH-90°

CH-1 ,180°

DETAIL-'X'

B

MODEL OPTION ‘DD’

A
B
C
D
E
F

G

H

I

L

M

O

P

Q

Q1

R
S

W

W1

V
Z

X

1/4"

M5
M6

11

15

M5X8

T

M5X8

E

M5X8

ST50 DA

10.60

3.11

2.56

3.15

1.18

1.18

0.56

1.28

1.54

0.36

0.48

0.79

1.42

1.97

0.48

0.62
1/4"

0.44

0.36

M5
M6

14.1

11

15

P

X

ST63 DA

11.70

3.7

3.15

3.15

1.18

1.26

0.67

1.58

1.83

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

14

18.1

21

D
F

A

H

Z

ST80 DA

12.20

4.29

3.78

3.15

1.18

1.58

0.67

1.89

2.15

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

22.2

21

N

Y

I

ST90 DR

12.20

5.51

4.81

3.15

1.18

1.58

0.67

2.40

2.52

0.44

0.59

0.79

1.97

2.76

0.48

0.62
1/4"

0.56

0.44

M6
M8

1717

25

G

45º

45º

4NOS.TAPPED 'W1'
ON 'Q1' PCD.

ST100 DA

ST110 DA

12.20

5.51

4.81

3.15

1.18

1.89

0.99

2.40

2.52

0.44

0.59

0.79

2.76

4.02

0.48

0.62
1/4"

0.87

0.56

M8

M10

22

28.222.2

25

12

CH

18.12

5.9

5.59

3.15

1.18

1.89

0.99

2.80

2.92

0.59

0.79

0.79

2.76

4.02

0.48

0.62
1/4"

0.87

0.56

M8

M10

22

28.2

25

4

6

4NOS.TAPPED 'W'
ON 'Q' PCD.

ST125 DA

18.12

5.59

5.12

1.18

2.37

0.99

2.80

2.92

0.59

0.79

0.79

2.76

4.02

0.48

0.62

0.87

0.56

M10

28.2

Ø6.1

M6

4

DETAIL-'Y'

DETAIL-'Z'

ST150 DA

5.9

1/4"

M8

22

CH-90º

CH-1 ,180°

19.00

7.08

6.85

5.12

1.18

2.56

1.14

3.43

3.55

0.59

0.79

0.79

4.02

4.92

0.48

0.62
1/4"

1.07

0.87

M10
M12

27

36.2

3530

ST175 DA

25.60

7.08

6.85

5.12

1.18

3.55

1.14

3.43

3.55

0.95

1.18

0.79

4.02

4.92

0.48

0.62
1/4"

1.07

0.87

M10
M12

27

36.2

35

ST200 DA

26.40

9.64

10.4

5.12

1.18

3.55

1.58

5.20

5.20

0.95

1.18

0.79

4.02

5.51

0.48

0.62
1/4"

1.42

1.07

M10
M16

36

48.2

50

ST250 DA

29.67

9.64

10.4

5.12

1.18

4.81

1.58

5.20

5.20

0.95

1.18

0.79

-

5.51

0.48

0.62
1/4"

1.42

1.07

-

M16

46

60.2

65

7

TECHNICAL INFORMATION

AIR CONSUMPTION

MODEL

ST32 DA
ST40 DA
ST50 DA
ST63 DA
ST80 DA

ST90 DA
ST100 DA
ST110 DA
ST125 DA
ST150 DA
ST175 DA
ST200 DA
ST250 DA

ST100 SR
ST110 SR
ST125 SR
ST150 SR
ST175 SR
ST200 SR
ST250 SR

SPRING SETS CODES

FOR 32 - ST 63

SPRING SET

5
6
7
8

INNER SPRING

VOLUME IN CU. IN.

ST32 SR
ST40 SR
ST50 SR
ST63 SR
ST80 SR
ST90 SR

0
2
1
2

PISTON INWARD

STROKE

4.28

6.84

9.27

10.6

15.5

15.8

17.2

37.2

57.4

93.2

130.4

252.7

360.1

OUTER SPRING

2
1
2
2

PISTON OUTWARD

STROKE

5.56

8.60

12.0

13.5

19.6

20.8

22.5

49.4

75.1

123.9

165.5

324.7

476.1

WEIGHT

MODEL

ST32
ST40
ST50
ST63
ST80

ST90
ST100
ST110
ST125
ST150
ST175
ST200
ST250

WEIGHT IN Ib

DOUBLE
ACTING

2.42

3.48

3.90

5.55

7.55

11.2

15.9

18.4

21.7

26.4

35.2

61.6

79.2

SPRING
RETURN

2.77

3.96

4.38

6.34

9.10

14.8

20.3

23.6

26.1

35.2

46.2

83.6

105.6

FOR ST 80 - ST 125

SPRING SET

11
16
18
22
24
26

INNER SPRING

FOR ST 150 - ST 250

SPRING SET

27
37
39
42
54
65
72

INNER SPRING

8

MIDDLE SPRING
2
2
1
1
2
2

1
2
1
2
1
1
2

0
1
2
1
1
2

MIDDLE SPRING

1
0
2
2
1
2
2

OUTER SPRING

1
1
1
2
2
2

MID. OUTER SPRING

2
1
2
0
2
2
2

OUTER SPRING

0
1
0
1
1
1
2

ST ACTUATOR CORROSION PROTECTION OPTIONS

Body:

Epoxy Coated & Hard Anodized Actuators: (Standard)

Special Aluminum alloy (6351T6) used as a base metal.
Hard Anodizing of Aluminum results in better corrosion protection, surface

hardness & superior wear resistance.
50µm thickness of controlled oxidized surface of the Aluminum alloy

comprises primarily of Aluminum torixide (Al2O3) crystals along with
Magnesium, Tungsten oxides which make the surface chemically inert &
extremely hard (in excess of 45 Rc).

Being an oxidized layer of the base metal Aluminum the treated layer can not
be peeled off & so this is in an extremely stable surface treatment.

Surface withstands all environments including saline enviroment with the
exception of strong acidic & alkaline atmospheres.

Epoxy resin (powder) deposited on the prepared (Hard anodised) Aluminium body
by spray technique followed by a baking process produces a 50 micron
thick layer. (only external surfaces).
Epoxy coating helps in protecting the actuator from extreamely corrosive
environments. This is suitable specially for Acidic, Alkaline environment,
also suitable for environments like Ammonia, Ammonia Liquor etc

Option EN
Electroless Nickel Treatment

Nickel is deposited on the aluminum surface (not electrically) by chemical
reaction of nickel on the Aluminium body.

The treatment covers the crevices including threads, passage holes.... &

leaves the surface absolutely non-porous. Superior corrosion resistance as
compared to hard Anodising makes this treatment a suitable choice for
corrosive environments. Ideal for external wash.

Pinion:

Electroless Nickel Plated: (Standard)

Standard surface treatment given to the pinon shaft of Steel (EN 8).
Adequate for most application including corrosive environments.

Option CC

Stainless Steel

Optionally available for aggressive environments. Pinion can also be
supplied in SS304/SS316.

9

SPRING RETURN TORQUES

LB - IN Pressure in Psi

SIZE SET NO. AIR AIR AIR AIR AIR AIR AIR AIR AIR AIR AIR AIR AIR AIR Start End

ST32 SR 2 - - 23 10 34 23 43 30 53 41 63 50 73 60 40 27

3 - - - - 31 19 40 24 50 37 60 44 70 55 46 30
4 - - - - - - 35 10 44 28 55 30 62 47 60 35

ST 40 SR 5 35 13 55 33 74 52 94 72 113 91 132 110 152 130 65 43

6 - - 49 24 68 43 88 63 107 82 126 101 146 121 74 49
7 - - - - 62 34 82 54 101 73 120 92 140 112 83 55
8 - - - - - - 69 36 88 55 107 74 127 94 101 68

ST 50 SR 5 69 39 101 71 134 104 167 137 199 169 231 201 264 234 91 61

6 30 26 92 58 125 91 158 124 190 156 222 188 255 221 104 70
7 - - - - 116 78 149 111 181 143 213 175 246 208 117 79
8 - - - - 99 55 132 88 164 120 196 152 229 185 140 96

ST 63 SR 5 80 19 133 72 186 125 239 178 292 231 345 284 398 327 193 132

6 - - 116 45 170 99 222 151 276 205 328 257 382 311 220 149
7 - - - - 152 64 204 116 258 170 310 222 364 276 255 167
8 - - - - 117 11 169 63 223 117 275 169 329 223 308 202

ST 80 SR 11 237 167 331 261 426 356 519 449 615 545 709 639 804 734 211 141

16 185 79 279 173 374 268 467 361 563 457 657 551 752 646 299 193
18 - - 261 138 355 232 449 326 544 421 639 516 722 610 334 211
22 - - - - 302 179 396 273 491 368 586 463 680 557 387 264
24 - - - - 276 126 370 220 465 315 560 410 654 504 440 290
26 - - - - - - 334 168 429 263 524 358 618 452 492 326

ST 90 SR 11 370 261 517 408 665 556 812 703 960 851 1107 998 1255 1146 329 220

16 289 124 436 371 584 419 781 566 879 714 1086 861 1174 1009 466 301
18 - - 408 216 556 364 703 511 851 659 998 806 1146 954 521 329
22 - - - - 473 281 620 428 768 576 915 723 1063 871 604 412
24 - - - - 433 198 580 345 728 493 875 640 1023 788 687 452
26 - - - - - - 522 265 670 413 817 560 965 708 767 510

ST100 SR 11 505 356 706 557 907 758 1108 959 1309 1160 1510 1361 1711 1562 448 299

16 391 188 592 389 793 590 994 791 1195 992 1396 1193 1597 1394 616 413
18 356 127 557 328 758 529 959 730 1160 931 1361 1132 1562 1333 677 448
22 - - - - 652 388 853 589 1054 790 1255 991 1456 1192 818 554
24 - - - - 582 274 783 475 984 676 1185 877 1386 1078 932 624
26 - - - - - - 712 369 913 570 1114 771 1314 972 1038 695

ST110 SR 11 681 480 952 751 1224 1023 1495 1284 1767 1566 2038 1837 2310 2109 606 405

16 532 227 803 498 1074 770 1346 1041 1618 1313 1889 1584 2161 1856 859 554
18 - - 751 398 1023 670 1294 941 1566 1213 1837 1484 2109 1756 959 606
22 - - - - 871 518 1142 789 1414 1061 1685 1332 1957 1604 1111 758

24 - - - - 796 365 1067 636 1339 908 1610 1179 1882 1451 1264 833

26 - - - - - - 964 487 1236 759 1507 1030 1779 1302 1413 936

ST125 SR 11 876 603 1218 945 1560 1287 1902 1629 2244 1971 2586 2313 2928 2655 765 492

16 691 321 1033 663 1375 1005 1717 1347 2059 1689 2401 2031 2743 2373 1047 677
18 612 216 945 558 1296 900 1629 1242 1980 1584 2313 1926 2664 2268 1152 756
22 - - - - 1111 644 1453 986 1795 1328 2137 1670 2479 2012 1408 941
24 - - - - 988 460 1330 802 1672 1144 2014 1486 2356 1828 1592 1064
26 - - - - 864 275 1206 617 1548 959 1890 1301 2232 1643 1777 1188

ST150 SR 27 1404 973 1970 1539 2537 2106 3103 2672 3670 3239 4236 3805 4803 4372 1293 862

39 1061 480 1627 1046 2194 1613 2760 2179 3327 2746 3893 3312 4460 3879 1786 1205
42 982 366 1539 932 2115 1499 2672 2065 3248 2632 3805 3198 4381 3765 1900 1284
54 - - - - 1779 996 2346 1563 2912 2129 3483 2696 4045 3262 2402 1619
65 - - - - 1568 670 2135 1237 2901 1803 3268 2370 3834 2936 2728 1830
72 - - - - 1427 459 1994 1026 2560 1592 3127 2159 3693 2725 2939 1971

ST175 SR 27 1963 1365 2759 2161 3556 2958 4352 3754 5149 4551 5945 5347 6742 6144 1821 1223

37 1558 766 2354 1562 3151 2359 3947 3155 4744 3952 5540 4748 6337 5545 2420 1628
42 1356 458 2160 1254 2949 2051 3745 2847 4542 3644 5338 4440 6135 5237 2728 1830
54 - - - - 2509 1391 3305 2187 4102 2984 4898 3780 5695 4577 3388 2270
65 - - - - 2201 934 2997 1730 3794 2527 4590 3323 5387 4120 3845 2578
72 - - - - 2007 643 2803 1439 3600 2236 4396 3032 5193 3829 4136 2772

ST200 SR 27 3090 2157 4311 3378 5532 4599 6753 5820 7974 7041 9195 8262 10416 9483 2728 1795

37 2448 1251 3669 2472 4890 3693 6111 4914 7332 6135 8553 7356 9774 8577 3634 2437
42 2140 793 3361 2014 4582 3235 5803 4456 7024 5677 8245 6898 9466 8119 4092 2745
54 - - - - 4002 2356 5222 3576 6444 4798 7664 6018 8886 7240 4972 3326
65 - - - - 3456 1556 4676 2776 5898 3998 7118 5218 8340 6440 5772 3872
72 - - - - 3166 1116 4386 2336 5608 3558 6828 4778 8050 6000 6212 4162

ST250 SR 27 5397 3743 7580 5926 9763 8109 11946 10292 16841 12475 16312 14658 14129 21207 4989 3335

37 4297 2106 6480 4289 8663 6472 10846 8655 13090 10838 15212 13021 17395 15204 6626 4435
42 3734 1252 5917 3435 8100 5618 10283 7801 12466 9984 14649 12167 16832 14350 7480 4998
54 - - - - 7035 4034 9218 6217 11401 8400 13584 10583 15767 12766 9064 6063
65 - - - - 6041 2556 8224 4739 10407 6922 12590 9105 14700 11288 10542 7057
72 - - - - 5513 1768 7696 3951 9879 6134 12062 8317 14245 10500 11330 7585

40 Psi 50 Psi 60 Psi 70 Psi 80 Psi 90 Psi 100 Psi SPRING SPRING

Start End Start End Start End Start End Start End Start End Start End

10

DOUBLE ACTING TORQUE RATINGS
LB - IN Pressure in Psi

Actuator
ST32 DA
ST40 DA
ST50 DA
ST63 DA
ST80 DA

ST90 DA
ST100 DA
ST110 DA
ST125 DA
ST150 DA
ST175 DA
ST200 DA
ST250 DA

ACCESSORIES

“SONIC SWITCH” NEMA 4

40 Psi

40

78
130
212
378
590
804

1086
1368
2266
3186
4885
8732

50 Psi

50

97
162
265
472
737

1005
1357
1710
2832
3982
6106

10915

WEATHER PROOF

60 Psi

60
117
195
319
566
885

1206
1629
2052
3398
4779
7328

13098

70 Psi 90 Psi

70
136
227
371
661

1032
1407
1900
2394
3965
5575
8548

15281

80 Psi

80
156
360
425
755

1180
1608
2172
2736
4531
6372
9770

17464

90
175
292
477
850

1327
1809
2443
3078
5098

7168
10990
19647

EXPLOSION PROOF

“SONIC SWITCH” NEMA 7

100 Psi

100
195
325
531

944
1475
2010
2715
3420
5664
7965

12213
21830

5/2 - 3/2 CONVERTIBLE,

NAMUR “SONIC SOL” VALVE

5/2 - 3/2 CONVERTIBLE,

WITH INTEGRAL FLOW CONTROL

NAMUR “SONIC SOL” VALVE

VAD213-NC VAD213-NC-FC

11

ACTUATION SIZING GUIDE

The seat material used, media, temperature, frequency of operation and criticality of the valve’s operation are all important factors
in calculating the actuation needs of a given valve. The information provided below should be considered as a guide only and must
be adjusted according to experience and judgement. Proper actuator selection is required to prevent valve or process equipment
damage as well as proper valve operation.

In general, we can say that valve torque results from the friction between the ball and seats as well as the stem and stem seals.

Valve Torque

The torque requirements of Ball Valves will vary depending on several factors.

- Seat design and material
Seats are designed to ensure consistent sealing and low torque. The seat friction force depends on the seat

material and the applicable service factor multipliers shown in the chart below.

- Stem Seal
Torque results from the stem contact with stem seals. Packing materials affect torque. Stem seal torque is an

high percentage of overall torque especially in small valve sizes.

Service Conditions

- Differential Pressure Minimum and maximum pressures

- Frequency of operation Stuck valve torque

- Media Influence Slurries, dry gases, Oils

- Temperatures Minimum and maximum

- Cycle Time Line hammer, process requirements

- Instrument Air Supply Peak demand pressure availability

Media and Service Factors

To establish minimum torque requirements, multiply valve torque by the following application media and service factors.

Media Factors
Clean particle free, non-lubricating
(water, alcohol or solvents)
Clean particle free, lubricating oil

Multiplier

1.00

0.80

Service Factors
Simple On and Off Operations
Throttling
Positioner Control

Multiplier

1.00

1.20

1.50
Slurries or heavily corroded and contaminated systems
Gas or saturated steam, clean and wet
Gas or superheated steam, clean and dry
Gas, dirty unfiltered e.g. natural gas, Chlorine

12

1.30 to 2.00

1.00

1.30

1.20 to 1.50

Once per day session
Once every two days
or more or plant critical

1.20

1.50

TECHNICAL INFORMATION

Ball Valve

Ball valve construction concept is based essentially on a polished ball (including
a through part) contained in two seats (upstream and downstream). The ball
rotation allows the flow or stops the flow through the valve. Differential pressure
between upstream and downstream pressure forces the ball against the downtream
seat (floating ball). In this case, the valve torque is generated by the friction
between ball and seat and also between stem and packing. As shown in the
diagram to the right the highest torque point is when, in presence of pressure,
the valve is in the closed position, and passes to the open position (breakaway
torque).

Butterfly Valve

BALL VALVE TORQUE

100%

Torque %

CLOSE OPEN

Valve Rotation

70.80%

25.30%

Butterfly valve construction concept is based essentially on a disc fixed on a axis,
which in the closed position, is completely contained by the seat. The open
position is obtained when, with a rotation, the disc (through its stem) becomes
parallel to the flow. On the contrary, the closed position is obtained when the disc
is perpendicular to the flow. In the case of the butterfly valve, the torque is
generated by the friction between the disc and the seat, by the stem packing and
also by the differential pressure that forces on the disc. The highest torque point,
as shown in the diagram, is in the closed position, and only after a small rotation
it is considerably reduced.

Plug Valve

Plug valve construction concept is based essentially on a male (plug) contained
in a female cone (seat). The plug provides a through port in one direction and
with its rotation into the seat the opening and closure of the valve is obtained. the
torque is usually not influenced by the flow pressure, but is generated essentially
by the friction between the seat and the plug, during the opening + closing cycle.
As shown in the diagram to the right, the highest troque point is in the closed
position and remains high for the rest of the operation, because the torque is not
influenced by pressure.

BUTTERFLY VALVE TORQUE

100%

Torque %

CLOSE OPEN

Valve Rotation

PLUG VALVE TORQUE

100%

Torque %

CLOSE OPEN

Valve Rotation

15.20%

80.90%

13

Double Acting Actuator (DA)

TECHNICAL INFORMATION

In the double acting actuators, the control pinion rotation and its reversal are
obtained by reversing the supply to the two input ports. The output torques
obtainable mainly depend on the cylinder diameter and the supply pressure; by
increasing one or both factors, the available troque also increases. The friction
should usually be neglible. As shown in diagram A, the torque of a DA actuator
is constant throughout the entire rotation and relevant reversal. The advised
safety factor, in addition to the valve maneuvre torque, is approximately 20%.

*Select the actuator size whose torque output at given pressure exceeds the
valve torque and application factor.

Spring Return Actuator (SR)

In these type of actuators, which utilize springs for reversing the rotation of the
control pinion, the output torque depends not only on the cylinder diameter and
the supply pressure, but also on the presence of the springs, which should be
compressed to guarantee the return. As shown in diagram C, the available torque
at 0° progressively reduces during the rotation due to the springs compression.
On the contrary, as shown in diagram D, the torque st arting from the 90° position
constantly decreases unit 0° because of spring extension. Owing the higher
friction present the safety coefficient advised in this case is approximately 25%.

*Select the actuator whose torque ouput at 0° and 90° at a given air pressure
exceeds the valve torque.

START /

END

START

END

END /

START

0°

0°

45 % 90°

Diag. A

END

45 % 90°

Diag. B

START

0°

45 % 90°

Diag. C

Recommended Spring Positioning

For ST 32-ST 63
If used any two spring use one on each side.

For ST 80-ST 125
If used any two spring. Use one on each side. If used 3 spring all different, use outer on one side and inner and middle
on other side if 4 spring are used with 3 different sides. Use two on each side, outer and inner on one side and outer and
middle on other side, etc..

For ST 150-ST 250
Use combination like above. In case of all 4 springs different outer and inner on one side and middle and middle outer
on other side.

14

OPERATION

DOUBLE ACTING

(TOP VIEW)

PORT “B” PORT “A”PORT “B” PORT “A”

Air supplied to Port A moves pistons apart and toward
end positions with exhaust air exiting at Port B (a
counterclockwise rotations is obtained).

SPRING RETURN

PORT “B” PORT “A”

Air supplied to Port A forces pistons apart and toward
end positiion, compressing springs, Exhaust air exits at
Port B (a counterclockwise rotation is obtained).

Air supplied to Port B forces pistons toward center with
exhaust air exiting at Port A (a clockwise rotation is
obtained).

(TOP VIEW)

PORT “B” PORT “A”

Air or electric failure allows springs to force pistons toward
center position with exhaust air exiting at port A ( a
clockwise rotation is obtained).

Reverse Rotation

Upon request, the pistons can be inverted in order to obtain a clockwise rotation when the air pressure is applied to Port A. Other
types of assembly are possible for any information, please contact factory.

Quick Operation Actuators

Upon request, Sonic Torque Series actuators can be specially prepared for fast response operations.

15

Installation

- Make sure that the actuator, when fitted on the valve, is well aligned with the valve stem. When actuator is directly
fitted with bracket and coupling, all parts must be precisely machined.

- In spring return applications, the exhaust air port must be very well vented.

- Accessories, if any, must be mounted in a proper manner to allow unobstructed operation of the actuator.

Maintenance

A. Remove the end cap screws (10) of the end cap (02).
B. Take off the end cap (02).
C. Turn the pinion (04) in clockwise direction so that the pistons (03) come out of the body (01).
D. Remove the retaining ring (13), (08) and (09).
E. Take the pinon (04) out from the lower part of the body by simply pressing with your finger.
F. Replace the following parts

On the pistons:

2 Flat Seal (15); 1 Body ring (06); 2 keys (07) ; 2 piston bearings (18); 2 O-rings (24).

On the heads :

2 Q Seal (14); 2 O-Rings (16).

On the pinion :

2 O-Rings (20) (21); 1 bearing (08); 1 lower bearing (17); 1 upper bearing (05); 1 pinion thrust washer (09);
external circlip (13).

HOW TO ORDER

ACTUATOR

MODEL

ST 32
ST 40
ST 50
ST 63
ST 80

ST 90
ST 100
ST 110
ST 125
ST 150
ST 175
ST 200
ST 250

DOUBLE

ACTING

DA

SPRING

RETURN

SR

SPRING CODE

SR-SET NO

Example

SR 8

OPTIONS

DD Double ‘D‘ STEM
AA 3 POSITION ACTUATOR
BB 180° ACTUATOR
EN ELECTROLESS NICKEL TREATMENT
CC STAINLESS STEEL PINION
HT HIGHT TEMPERATURE ACTUATOR
RR REVERSE ROTATION
LA LOCK ACTUATOR

ST50 SR 8 CC

R

Toll-Free 1-877-7 SHARPE
E-Mail:[e-mail]

www.sharpevalves.com

HARPE VALVES

A DIVISION OF SHARON PIPING & EQUIPMENTS., INC

Due to continuous development of our product range we reserve the right to change the dimensions and information contained in the leaflet as required.