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air torque
atex 94/9/ec sil3 iec 61508 gost-r type approval
The 4th Generation Line pneumatic actuators, upgrade Series, are the result of the Air Torque mission to offer always innovative products by combininc the long field experience as market leader, the innovational spirit, the well-known reliability in actua- tor desicning and the high quality manufacturing level.
The Air Torque experience has procuced the followinc main key features included in the 4th Generation Line, Upgrade Series:

Reliable and flexible solutions

3y combininc high quality orocucts, fie d and cesicn experience, Air Torque is ace to satisfy all the customers anc market expectations oy offering relia- ble, flexible anc custom izec solutions together with a qualified service.

Innovative Patented Design

The new technical features developed sonic incorporated in the 4th Gene- ration Line pneumatic actuators, Upgrade Series, permit to have the best product versati ity for an easier ono easier valve automation. The Upgrade Series are coverec by five International patents.

The most complete range and options

The Upgrade Series pneumatic actuators are avai able in:
- Eichteen mocels
- Sprinc return and double acting versions
- Torque up to 10.000 Nm
- Six different protection levels
- Low ono high temperature constructions
- Large availability of many ISO flanges and drive shaft connections for cirect valve automation
- 120°-135°-180° rotation both in double acting and spring return
- 180° spring return Fail-Mic
- 3 Position actuators, 90° anc 180° rotation, both double acting and spring return versions
- Fast acting actuators
- I iydraulic camper actuators

High quality level production

The 4th Generation Line pneumatic actuators, Upgrade Series, have oeen designed and testec to obtain the hichest cyclinc life and the most reliaole performance with very reduced maintenance anc service.

International Standard

The 4th Generation Line pneumatic actuators, Upgrade Series, have been cesigned, manufactureo and tested in full compliance with all the app icable International standards.

Technology and material

The 4th Generation Line pneumatic actuators, Upgrade Series, are manufac- tured with the highest materia quality, the most accurate material selections anc the latest production technolocies.
technical features

1.Alodur hard anodized body

Extruded aluminum body with Alodur special hard ano- dization applied internally and externally for a complete corrosion protection, a lower friction coefficient and an increased surface hardness for the ongest wearing resistance.
Many additional protective coatincs are available on the external surface for different environmental workinc conditions.

2.Pistons design

Dual piston rack and pinion desicn for compact con- struction, symmetric mountinc position, high -cycle life and fast operation, reverse rotation can be accompli- shed in the field by simply inverting the pistons. 3oth pistons are anodized for a better corrosion and wearing resistance.

3.Two independent external travel stop adjustments

As a standard, travel stops allowing adjustment for -5° up to +15° on the dose position, and for +5° up to -15° on the open position. This allows accurate va ve alicnment, stroke limitation and provides on actuator a large travel adjustment.

4.Universal and anti -blowout drive shaft

It permits an easy conversion from parallel to diagonal square and vice versa. It is also available in double square; both solutions permit a lower and more flexible inventory.

5.Drive shaft top adaptor

The aluminum top acaptor for ancillary driving/attach- ment gives a more precise and stable coupling with an- cillary stem suitable for hic her temperature application. It is suitable and available both for singe (diagonal and parallel) and double square drive shafts.

6.One compact and modern design

With identical body and end caps for double actinc and spring return model to reduce inventory, allows field conversion, by addinc or removing modular spring cartridge.

7. Position indication

The combination of the new top adaptor and the new position indicators allows to achieve easily the correc actuator/valve position indication by just rotating o 90° the top adaptor and the indicator. This operation can be easily done also on the field by avoidinc the actuator disassembling.

8. Multiple bearings and guide

Bearincs on piston and racks for precise opera- tion, low friction, high cycle life and piston guides preventing shaft blowout.

9. Modular preloaded springs

Cartridge design in high grade coated steel for simple range versatility, greater safety and corro- sion resistance.

10.Electroless nickel -plated drive -shaft

Blow-out proof, bearing guided for improved sa- fety and maximum cycle life.

11. Fully machined teeth

On piston racks and pinion shaft for accurate posi- tioning, low cock ash and maximum encacement resultinc in overall efficient operation.

12. Selected and high quality bearings and seals

Provide a wide operating temperature range, low friction and high cycle life.

13. Fasteners

Stainless steel fasteners for lonc term corrosion re- sistance.

14. Full compliance

To specifications ISO 5211, DI\ 3337 and VD/ VDE 3845 providing the product interchangeabi- lity and the easiest valve automation anc accesso- ries installation.

15. Product Identity

Plastic insert with Air Torque logo and unique pa- tented cesian.
product range
the product range includes also the following options

LOCK -OUT CAPABILITY

In order to permanently lock the actuator in position, the actuator can se supplied with a special ockinc device by usinc a paclock and therefore preventing unwanted operation.

100% TRAVEL STOP LIMITATION

When a stroke of ess than 90 0 is requirec e.g. 1°, 5°, 1C°, 25°, 50° , 70° and the standarc adjustment is not suitable, the actuator can be suppliec with special Dolts in both End-Caos to al ow stroke acjustment or limitation fron 0° to 90° according to customer requirements.
actuator operating conditions

1. Operating media

Dry or lubricated air, inert/non-corrosive gases croviced that they are compatible with the internal actuator carts

2. Supply pressure

For Double Acting and Spring Return actuators the maxi- mum supply pressure is uo to 8 car (116 PSI), the mini- mum suppy cressure is 2.5 bar (36 PSI).

3. Working Temperature

• Standarc actuator construction suitable from -40°C (-40°F) to +80°C (+176°F)
• High temperature — HT — actuator construction suitable from —15°C (+5°F) to +150°C (+302°F)
• Extreme low temperature — LLT - actuator construction suitable from -55°C (-67°F) to + 80°C (+176°F)

4. Lubrication

Actuators are factory Horicated for life unc er norma operating concitions. The standard lubricant is suita oe for use from -40°C (-40°F) to +80°C (+176°F)

5. Installation

Actuator suitable oath for indoor and outdoor insta lation.

6.Protection and Corrosion resistance

Air Torcue actuators are avai aole in 6 different pro- tection levels suitable for different environmenta condi- tions. For severe cuties select from the protection level taole or contact AR TORQUE.

7.Actuator selection and Marking

To have a correct actuator selection, the operating conditions have to oe evaluated anc defined; they will oe marked on the actuator identification lapel.
actuator function and rotation
The standarc actuator rotation is clockwise to dose, a counter -clockwise rotation is achievec when port 2 is pressu- rizec. Non stancard actuator rotation is counter -clockwise to c ose, a c ockwise rotation is achieved when port 2 is pressurized. See the technica cata-sheet for details.

Double Acting operation function (standard rotation) TOP View:

Air supplied to Port 2 forces the pistons towards the actuator enc caps, with the exhaust air exi- tinc from Port 4, a counter -clockwise rotation is achie- ved.
Air suppliec to Port 4 forces the pistons inward, exhaust air exits from Port 2, a clockwise rota- tion is achievec.

Single Acting operation function (standard rotation) TOP View:

Air supplied to Port 2 forces the pistons towarc the actuator enc caps, compres- sinc the sprincs, with the exhaust air exitinc from Port 4, a counter clockwise rotation is achievec.
The loss of air pressure (air or electric failure) at Port 2 allows the springs to force the pistons inwarc with the exhaust air exi- ting from Port 2, a clockwise rotation is achieved.
position indicator and top adaptor

Options available for AT045U to AT101U

Standarc position indicator with stainless steel insert for ancil- lary drivinc/attachment for a more precise and stable couplinc with ancillary stem. A graduated ring is fitted, as a standard, under the position indicator in order to have an accurate position indication.
Optional indicators for direct mounting of sensors (P -HP, IPM, etc.) and mechanical limit -switches

Options available for 141201U to AT100

Standard position indicator with aluminum top adaptor for an- cillary driving/attachment for a more precise and stable coupling with ancillary stem. A graduated ring is fittec, as a standard, under the position indicator in order to have an accurate position indication.
Optional indicators for direct mounting of sensors (P -I -F, IPM, etc.) and mechanical limit -switches

In line and across line actuator instal- lation versatility

The patented design of the top acaptor in combina- tion with the position indicator permits to easily achie- ve the right actuator/valve position indication since both can be easily fitted in any 45° position.
Therefore during the valve automation it is not neces- sary to reassemble the drive shaft in order to achieve the correct position incication.


The top adaptor is suitable anc avai able for any dri- ve shaft connections like single square (diacona and parallel), double square, head flat or key head.

Actuator in close position and IN LINE installation

Actuator in close position and ACROSS LINE installation (Top adaptor and po- sition indicator 90° rotated)

parts and materials
PART N° spare
Parts		 UNIT Q.TY / NOTE PART DESCRIPTION STANDARD MATERIAL
01 1 NA for AT045U OCTI-CAM (Stop arrangement) Stainless Steel (only for AT051U ± AT301U)
Carbon Steel / Nodular Cast Iron, zinc coated
02 2 NA for AT045U STOP CAP SCREW Stainless Steel
03 2 NA for AT045U WASHER Stainless Steel
04 2 NA for AT045U NUT (Stop screw) Stainless Steel
05 ○ 2 BEARING (Piston back) High-grade polymers
4 for AT1001U
06 ○ 1 BEARING (Pinion top) High-grade polymers
07 ○ 1 BEARING (Pinion bottom) High-grade polymers
08 ○ 2 1 Pc. for AT045U THRUST BEARING (Pinion) High-grade polymers
09 ○ □ 2 PLUG M-NBR / Silicone
09.1 ○ □ 2 for AT801U ÷ AT1001U "0 -RING" PLUG M-NBR / Silicone
10 1 THRUST WASHER (Pinion) Stainless Steel
11 ○ □ 2 NA for AT045U "O" RING (Stop screw) M-NBR
12 2 NA for AT045U PISTON GUIDE Hiqh-qrade polymers
  • ○ Parts included in Complete spare parts kit
  • □ Parts included in "O" ring spare parts kit
    • parts and materials

    AT801U

    PART N° spare
    Parts    		 UNIT Q.TY / NOTE PART DESCRIPTION STANDARD MATERIAL
    13 8 for AT045U ÷ AT651U CAP SCREW (End cap) Stainless Steel
    12 for AT701U ÷ AT751U
    16 for AT801U ÷ AT1001U
    13.1 16 for AT1001U WASHER (Cap Screw end cap) Stainless Steel
    14 ○ □ 2 "O" RING (End cap) M-NBR
    15 ○ 2 BEARING (Piston head) High-grade polymers
    16 ○ □ 2 "O" RING (Piston) M-NBR
    17 max. 12 for AT101U ÷ AT1001U SPRING (Cartridge) SiCr Spring alloy Steel coated
    17.1 max. 2 for AT045U SPRING
    17.2 SPRING
    17.3 max. 4 for AT051U SPRING
    18 1 SPRING CLIP (Pinion) Spring Steel. ENP
    19 1 for AT045U ÷ AT101U POSITION INDICATOR High-grade polymers / Stainless Steel
    19.0 1 GRADUATED RING High-grade polymers
    19.1 1 NA for AT045U ÷ AT101U POSITION INDICATOR High-grade polymers
    19.5 1 NA for AT045U ÷ AT101U TOP ADAPTOR Extruded Aluminium alloy, anodized
    19.6 2 NA for AT045U ÷ AT101U HEX. SOCKET SCREW (Top Adaptor) Stainless Steel
  • ○ Parts included in Complete spare parts kit
  • □ Parts included in "O" ring spare parts kit
    • parts and materials

    AT1001U

    PART N° spare
    Parts    		 UNIT Q.TY / NOTE PART DESCRIPTION STANDARD MATERIAL
    20 ○ □ 1 "O" RING (Pinion bottom) M-NBR
    21 ○ □ 1 "O" RING (Pinion top) M-NBR
    30 2 END CAP Pressure Die Cast Aluminium alloy, anodized and coated
    Cast Aluminium alloy, anodized and coated (for AT1001U)
    39 1 CAP SCREW (Indicator) High-grade polymers
    40 2 PISTON Pressure Die Cast Aluminium alloy. anodized
    Cast Aluminium alloy. anodized . (for AT1001U)
    41 1 ACTUATOR IDENTIFICATION LABEL Polyester -Silver
    42 2 only for AT045U, AT751U and AT1001U END CAP LABEL Polyester -Silver
    43 1 SPIGOT (Only on request) Extruded Aluminium alloy. anodized
    50 1 BODY Extruded Aluminium alloy, coated
    Cast Aluminium alloy. coated (for AT801U and AT1001U)
    60 1 DRIVE SHAFT Extruded Aluminium alloy, anodized (for AT045U and AT1001U)
    Steel, ENP
    60.1 1 only for protection level "E" and "F" INTEGRAL DRIVE SHAFT Stainless Steel. ENP
    65 1 PLASTIC INSERT High-grade polymers
  • ○ Parts included in Complete spare parts kit
  • □ Parts included in "O" ring spare parts kit
    • dimensions and technical data

    AIR CONNECTION VDI/VDE 3845

    BOTTOM VIEW ISO 5211

    DIMENSIONS IN mm

    actuator
    model    		 AT045U
    d/s    		 AT051U
    d/s    		 at101u
    d/s    		 at201u
    d/s    		 at251u
    d/s    		 at301u
    d/s    		 at351u
    d/s    		 at401u
    d/s    		 at451u
    d/s    		 at501u
    d/s    		 at551u
    d/s    		 at601u
    d/s    		 at651u
    d/s    		 at701u
    d/s    		 at751u
    d/s    		 at801u
    d/s    		 at1001u
    d/s
    A 118 135,5 153,5 203,5 241 259 304 333 394,5 422,5 474 528 605 710 812 855 950
    B 66 69 85 102 115 127 145 157 177 196 220,5 245 298,5 330 383 410 518
    C 62 71 84,5 93 106 118,5 136 146,5 166 181 200 221,5 262 330 371 418 528
    D M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M6x10 M6x10 M6x10 M6x10 M6x10
    E M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M5x8 M6x10
    F 80 80 80 80 80 80 80 80 80 80 130 130 130 130 130 130 200
    G 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 50
    N 11 11 11 17 17 17 27 27 27 27 36 36 36 36 36 36 36
    P 15/20 20 20 20 20 20 30 30 30 30 50 50 50 50 50 50 80
    R 32 32 32 32 32 32 32 32 32 32 32 32 45 45 45 45 45
    S 24 24 24 24 24 24 24 24 24 24 24 24 40 40 40 40 40
    T
    ISO 228    		 1/8" 1/8" 1/8" 1/8" 1/8" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 1/4" 3/8" 1/2" 1/2" 1/2" 1/2"
    Ø Z1 42 42 42 42 42 42 58 58 67,5 67,5 80 80 115 115 115 115 135
    ISO
    Flange    		 F04 F04 F05+F07 F05+F07 F05+F07 F07+F10 F07+F10 F07+F10 F10+F12 F10+F12 F14 F14 F16 F16 F16 F16+F25 F16
    +
    F25
    +
    F30
    Q 42 42 50 50 50 70 70 70 102 102 140 140 165 165 165 165 165
    Q1 - - 70 70 70 102 102 102 125 125 - - - - - 254 254
    Q2 - - - - - - - - - - - - - - - - 298
    W M5 M5 M6 M6 M6 M8 M8 M8 M10 M10 M16 M16 M20 M20 M20 M20 M20
    W1 - - M8 M8 M8 M10 M10 M10 M12 M12 - - - - - M16 M16
    W2 - - - - - - - - - - - - - - - - M20
    OPTIONAL
    ISO
    Flange    		 F03 F03+F05 F03+F05 F05 F07 F05+F07 F10 F10 F12 F12 F10+F12 F10+F12 F12 F12 F14 F25 F30
    - F04+F07 F04+F07 F07 F14 F14 F16+F25
    - F05 - - - - -
    CH
    x
    I min.    		 D - 9x11 9x11 11x12 11x12 14x16 14x16 17x19 22x24 22x24 22x24 22x24 27x29 27x29 55x59 55x59 75x80
    - 11x12 14x16 14x16 14x16 17x19 22x24 27x29 27x29 27x29 36x39 36x39 46x49 46x49 - - -
    - - - 17x19 17x19 22x24 - - - - - - - - - - -
    DS 9x11 11x12 11x12 14x16 17x19 17x19 17x19 22x24 27x29 27x29 27x29 27x29 36x39 36x39 46x49 46x49 55x59
    11x12 - 14x16 17x16 - 22x24 22x24 27x29 - - 36x39 36x39 46x49 46x49 55x59 55x59 75x80

    TECHNICAL DATA (METRIC UNIT)

    metric model
    type    		 AT045U AT051U at101u at201u at251u at301u at351u at401u at451u at501u at551u at601u at651u at701u at751u at801u at1001u
    D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S
    Openning
    Time    		 (Sec.) 0,15 0,2 0,2 0,25 0,25 0,3 0,3 0,4 0,4 0,5 0,5 0,7 0,7 0,9 0,9 1,2 1,2 1,5 1,5 1,8 2 2,4 2,7 3,5 3,5 4,1 4 4,5 5 6 6 7,5 8 10
    Closing
    Time    		 (Sec.) 0,2 0,25 0,25 0,3 0,3 0,35 0,35 0,5 0,5 0,6 0,6 0,9 0,8 1,1 1,1 1,4 1,4 1,8 1,7 2,1 2,2 2,8 3,2 4 4 4,6 4,5 5 6 7 7 8,5 9 11
    Air
    Volume
    Openning    		 (L) 0,06 0,09 0,16 0,31 0,51 0,71 1,19 1,54 2,41 3,41 4,26 5,94 10 14,5 20 25 49
    Air
    Volume
    Closing    		 (L) 0,1 0,15 0,26 0,49 0,78 1,11 1,8 2,34 3,78 4,92 6,89 9,46 15,2 21,4 33 40 84
    Approximate
    Weight    		 (Kg) 0,75 0,9 1,1 1,3 1,6 1,8 2,7 3 3,8 4,4 5,2 6 8,1 9,4 10 12,4 14,2 17,1 17,8 21,4 24,3 32,7 34,3 46,3 54,6 69 76,3 95,5 118 150 127 169 170 238
    Note: (A) The above moving times of the actuator are obtained in the following test conditions:
    For model AT045U ÷ AT501U: (1) Room Temperature, (2) Actuator Stroke 90° . (3) Solenoid Valve with Orifice Of 4 mm and a flow capacity On 400L/min., (4) Inside pipe diameter 8 mm, (5) Medium clean air, (6) Air supply pressure 5.5 bar (79,75 Psi). (7) Actuator without external resistance load.
    For model AT551U ÷ AT1001U: (1) Room Temperature, (2) Actuator Stroke 90° - . (3) Solenoid Valve with Orifice Of 11 mm and a flow capacity On 6000L/min., (4) Inside pipe diameter 11 mm, (5) Medium clean air, (6) Air supply pressure 5,5 bar (79,75 Psi), (7) Actuator without external resistance load.
    Cautions: obviously on the field applications when one or more of the above parameter are different, the moving time will be different.
    DIMENSIONS and technical data

    FRONT VIEW

    SIDE VIEW

    TOP DETAIL

    DIMENSIONS and technical data

    AIR CONNECTION VDI/VDE 3845

    BOTTOM VIEW ISO 5211

    DIMENSIONS IN INCH

    OPTIONAL
    ISO
    Flange    		 F03 F03+F05 F03+F05 F05 F07 F05+F07 F10 F10 F12 F12 F10+F12 F10+F12 F12 F12 F14 F25 F30
    - F04+F07 F04+F07 F07 F14 F14 F16+F25
    - F05 - - - - -
    CH
    x
    I min.    		 D - 0,35x0,43 0,35x0,43 0,43x0,47 0,43x0,47 0,55x0,63 0,55x0,63 0,67x0,75 0,87x0,94 0,87x0,94 0,87x0,94 0,87x0,94/td> 1,06x1,14 1,06x1,14 2,17x2,32 2,17x2,32 2,95x3,15
    - 0,43x0,47 0,55x0,63 0,55x0,63 0,55x0,63 0,67x0,75 0,87x0,94 0,87x0,94 1,06x1,14 1,06x1,14 1,42x1,54 1,42x1,54 1,81x1,93 1,81x1,93 - - -
    - - - 0,67x0,75 0,67x0,75 0,87x0,94 - - - - - - - - - - -
    DS 0,35x0,43 0,43x0,47 0,43x0,47 0,55x0,63 0,67x0,75 0,67x0,75 0,67x0,75 0,87x0,94 1,06x1,14 1,06x1,14 1,06x1,14 1,06x1,14 1,42x1,54 1,42x1,54 1,81x1,93 1,81x1,93 2,17x2,32
    0,43x0,47 - 0,55x0,63 0,67x0,75 - 0,87x0,94 0,87x0,94 1,06x1,14 - - 1,42x1,54 1,42x1,54 1,81x1,93 1,81x1,93 2,17x2,32 2,17x2,32 2,95x3,15
    * NPT (ANSI B1-20-1) threads available on request

    TECHNICAL DATA(IMPERIAL UNIT)

    IMPERIAL model
    type    		 AT045U AT051U at101u at201u at251u at301u at351u at401u at451u at501u at551u at601u at651u at701u at751u at801u at1001u
    D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S D S
    Openning
    Time    		 (Sec.) 0,15 0,2 0,2 0,25 0,25 0,3 0,3 0,4 0,4 0,5 0,5 0,7 0,7 0,9 0,9 1,2 1,2 1,5 1,5 1,8 2 2,4 2,7 3,5 3,5 4,1 4 4,5 5 6 6 7,5 8 10
    Closing
    Time    		 (Sec.) 0,2 0,25 0,25 0,3 0,3 0,35 0,35 0,5 0,5 0,6 0,6 0,9 0,8 1,1 1,1 1,4 1,4 1,8 1,7 2,1 2,2 2,8 3,2 4 4 4,6 4,5 5 6 7 7 8,5 9 11
    Air
    Volume
    Openning    		 (Cu. Ln.) 3,66 5,5 9,8 18,9 31,1 43,3 72,6 94 147,1 191,6 260 362,5 610,2 884,8 1220 1525 2990
    Air
    Volume
    Closing    		 (Cu. Ln.) 6,1 9,2 15,9 29,9 47,6 67,7 109,8 142,8 230,7 300,2 420,5 577,3 927,6 1305 2014 2441 5126
    Approximate
    Weight    		 (Lbs) 1,65 1,98 2,4 2,9 3,5 4,0 6,0 6,6 8,4 9,7 11,5 13,2 17,9 20,7 22,0 27,3 31,3 37,7 39,2 47,2 53,6 72,1 75,6 96,1 120 152 168 211 260 331 280 371 375 525
    Note: (A) The above moving times of the actuator are obtained in the following test conditions:
    For model AT045U ÷ AT501U: (1) Room Temperature, (2) Actuator Stroke 90° . (3) Solenoid Valve with Orifice Of 4 mm and a flow capacity On 400L/min., (4) Inside pipe diameter 8 mm, (5) Medium clean air, (6) Air supply pressure 5.5 bar (79,75 Psi). (7) Actuator without external resistance load.
    For model AT551U ÷ AT1001U: (1) Room Temperature, (2) Actuator Stroke 90° - . (3) Solenoid Valve with Orifice Of 11 mm and a flow capacity On 6000L/min., (4) Inside pipe diameter 11 mm, (5) Medium clean air, (6) Air supply pressure 5,5 bar (79,75 Psi), (7) Actuator without external resistance load.
    Cautions: obviously on the field applications when one or more of the above parameter are different, the moving time will be different.
    torque output (nm)

    SPRING RETURN TORQUE

    Supply Pressure 2,5 bar 3 bar 3,5 bar 4 bar 4,2 bar 4,5 bar 5 bar 5,5 bar 6 bar 7 bar 8 bar Spring stroke
    Model Spring
    set    		 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 90° 0°
    Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End
    AT045U S 1-1 4,3 2,9 3,1 1,7
    S 1-2 4,7 2,4 4,8 2,6
    S 2-2 4,9 2,0 6,1 3,2 6,6 3,7 7,3 4,4 6,4 3,5
    S 2-3 6,6 2,8 7,8 4,0 9,0 5,2 10,2 6,4 8,0 4,2
    S 3-3 8,2 3,6 9,4 4,8 11,8 7,2 14,1 9,5 9,6 5,0
    AT501U S 1 5,0 3,0 7 4,7 8 6,3 10,0 8 9,4 8,3 11,7 9,6 13,3 11,3 5,3 3,3
    S 2 4 1,9 6,0 3,6 7,7 5,3 9,3 6,9 9 7,4 11,0 8,6 12,7 10,2 14,3 11,9 6,4 4,0
    S 3 5,3 2,5 7,0 4,2 8,7 5,8 8,2 6,6 10,3 7,5 12,0 9,2 13,7 10,8 15,3 12,5 7,4 4,6
    S 4 6,3 3 8,0 5 7,6 5,8 9,7 6,4 11,3 8,1 13,0 9,8 14,7 11,4 18,0 14,7 8,5 5,3
    S 5 7,3 3,7 7,0 4,9 9,0 5,4 10,7 7,0 12,3 8,7 14,0 10 17,3 13,7 20,6 17,0 9,6 5,9
    S 6 8,4 4,3 10,0 6,0 11,7 7,6 13,3 9,3 16,7 12,6 20,0 16 10,6 6,6
    S 7 9,4 4,9 11 6,6 13 8,2 16,0 11,6 19,3 14,9 11,7 7,3
    S 8 10,4 6 12,0 7,2 15,3 10,5 18,7 13,8 12,8 7,9
    AT101U S 05 9,1 6,2 12 9,2 15 12,1 17,9 15 19,1 16,2 20,8 17,9 23,8 20,9 8,4 5,5
    S 06 8 4,5 10,9 7,5 13,9 10,4 16,8 13,3 18 14,5 19,7 16,3 22,7 19,2 25,6 22,1 10,1 6,7
    S 07 9,8 5,8 12,8 8,7 15,7 11,6 16,9 12,8 18,6 14,6 21,5 17,5 24,5 20,4 27,4 23,4 11,8 7,8
    S 08 11,6 7 14,6 10 15,7 11,1 17,5 12,9 20,4 15,8 23,4 18,7 26,3 21,7 32,2 27,5 13,5 8,9
    S 09 13,5 8,3 14,6 9,4 16,4 11,2 19,3 14,1 22,3 17,1 25,2 20 31,1 25,9 36,9 31,7 15,2 10
    S 10 15,3 9,5 18,2 12,4 21,1 15,4 24,1 18,3 29,9 24,2 35,8 30 16,9 11,1
    S 11 17,1 10,8 20 13,7 23 16,6 28,8 22,5 34,7 28,3 18,6 12,2
    S 12 18,9 12 21,9 14,9 27,7 20,8 33,6 26,7 20,2 13,3
    AT201U S 05 18 11,8 23,8 17,6 29.7 23,4 35,5 29,2 37,8 31,6 41,3 35 47,1 40,9 17,3 11,1
    S 06 15,8 8,3 21,6 14,1 27,5 19,9 33,3 25,8 35,6 28,1 39,1 31,6 44,9 37,4 50,7 43,2 21 13,3
    S 07 19,4 10,7 25,2 16,5 31,1 22,3 33,4 24,6 36,9 28,1 42,7 33,9 48,5 39,8 54,3 45,6 24,2 15,5
    S 08 23 13 28,8 18,8 31,2 21,2 34,7 24,7 40,5 30,5 46,3 36,3 52,1 42,1 63,7 53,7 27,7 17,7
    S 09 26,6 15,4 29 17,7 32,5 21,2 38,3 27 44,1 32,8 49,9 38,6 61,5 50,3 73,2 61,9 31 19,9
    S 10 30,2 17,7 36,1 23,6 41,9 29,4 47,7 35,2 59,3 46,8 71 58,5 34,6 22,1
    S 11 33,8 20,1 39,7 25,9 45,5 31,7 57,1 43,4 68,7 55 38,1 24,3
    S 12 37,5 22,4 43,4 28,3 54,9 39,9 66,5 51,5 41,5 26,5
    AT251U S 05 27,4 16,9 36,6 26 45,7 35,2 54,9 44,3 58,4 48 64 53,5 73,2 62,6 28,9 18,3
    S 06 23,8 11,1 32,9 20,3 42,1 29,4 51,2 38,6 54,9 42,2 60,4 47,7 69,5 56,9 78,7 66 34,7 22
    S 07 29,2 14,5 38,4 23,6 47,5 32,8 51,2 36,4 56,7 41,9 65,8 51,1 75 60,2 84,2 69,4 40,4 25,7
    S 08 34,7 17,9 43,9 27 47,5 30,7 53 36,2 62,2 45,3 71,3 54,5 80,5 63,6 98,8 81,9 46,2 29,3
    S 09 40,2 21,2 43,9 24,9 49,4 30,4 58,5 39,5 67,7 49 76,8 57,8 95,1 76,1 113 94,5 52 33
    S 10 45,7 24,6 54,8 33,8 64 42,9 73,1 52,1 91,5 70,4 110 88,7 57,8 36,7
    S 11 51,2 28 60,3 37,1 69,5 46,3 87,8 64,6 106 82,9 63,5 40,3
    S 12 56,7 31,4 65,8 40,5 84,1 58,8 102 77,1 69,3 44
    AT301U S 05 41,1 27,1 54,4 40,4 67,7 53,7 81 67 86,3 72,3 94,3 80,3 108 93,6 39,4 25,3
    S 06 36,1 19,2 49,4 32,5 62,7 45,8 76 59,1 81,3 64,4 89,3 72,4 103 85,7 116 99 47,3 30,4
    S 07 44,3 24,6 57,6 37,9 70,9 51,2 76,2 56,5 84,2 64,5 97 77,8 111 91,1 124 104 55,1 35,5
    S 08 52,5 30 65,8 43,3 71,1 48,7 79,1 56,6 92,4 69,9 106 83,2 119,0 96,5 146 123 63 40,5
    S 09 60,8 35,5 66,1 40,8 74,0 48,8 87,3 62,1 101 75,3 113,9 88,6 141 115 167 142 70,9 45,6
    S 10 69 40,9 82,3 54,2 95,6 67,5 109 80,8 135 107 162 134 78,8 50,7
    S 11 77,2 46,3 90,5 59,6 104 72,9 130 99 157 126 86,7 55,7
    S 12 85,4 51,7 99 65 125 92 152 118 94,5 60,8
    AT351U S 05 66,5 41,9 87,9 63,4 109,4 84,9 131 106 140 115 152 128 174 149 65,5 41
    S 06 58,3 28,8 79,7 50,3 101,2 71,8 123 93,3 131 102 144 115 166 136 187 158 78,6 49,2
    S 07 71,5 37,2 93 58,7 115 80,2 123 88,8 136 102 158 123 179 145 200 166 91,7 57,4
    S 08 84,8 45,6 106 67,1 115 75,7 128 88,6 149 110 171 132 192 153 235 196 105 65,6
    S 09 98,1 54 107 62,6 120 75 141 97 163 118 184 140 227 183 270 226 118 73,8
    S 10 111 62,4 133 83,9 154 105 176 127 219 170 262 213 131 82
    S 11 125 70,8 146 92,3 168 114 211 157 254 200 157 90,2
    S 12 138 79,2 159 101 202 144 245 187 157 98,4
    AT401U S 05 86 56,1 114 83,8 141 111 169 139 180 150 197 167 224 195 82,4 52,5
    S 06 75,5 39,6 103 67,3 131 95,0 159 123 170 134 186 150 214 178 242 206 98,9 63
    S 07 92,7 50,8 120 78,5 148 106 159 117 176 134 203 162 231 189 259 217 115 73,5
    S 08 110 62 138 89,7 149 101 165 117 193 145 221 173 248 201 304 256 132 84
    S 09 127 73,3 138 84,3 155 101 182 129 210 156 238 184 293 239 349 295 148 94,5
    S 10 144 84,5 172 112 200 140 227 168 283 223 338 278 165 105
    S 11 161 95,7 189 123 217 151 272 206 328 262 181 116
    S 12 179 107 206 135 262 190 317 245 198 126
    AT451U S 05 135 89 179 132 222 176 265 219 283 236 309 262 352 306 129 82,4
    S 06 119 63 162 106 206 149,7 249 193 266 211 293 237 336 280 379 324 155 99
    S 07 146 80 189 124 233 167 250 185 276 211 320 254 363 298 406 341 180 115
    S 08 173 98 216 142 233 159 260 185 303 229 347 272 390 316 477 403 206 132
    S 09 200 116 217 133 243 159 287 203 330 246 374 290 460 377 547 464 232 148
    S 10 227 134 270 177 314 221 357 264 444 351 531 438 258 165
    S 11 254 151 297 195 341 238 428 325 515 412 283 181
    S 12 281 169 324 213 411 299 498 386 309 198
    AT501U S 05 171 118 228 174 285 231 342 288 364 310 398 344 455 401 166 112
    S 06 149 84 206 141 262 198 319 255 342 277 376 311 433 368 489 425 199 135
    S 07 183 108 240 165 297 221 319 244 353 278 410 335 467 391 524 448 233 157
    S 08 218 131 274 188 297 211 331 245 388 302 444 358 501 415 615 528 266 180
    S 09 252 155 275 178 309 212 365 268 422 325 479 382 592 495 706 609 299 202
    S 10 286 178 343 235 400 292 456 349 570 462 683 575 332 224
    S 11 320 202 377 259 434 315 547 429 661 542 365 247
    S 12 355 225 411 282 525 396 638 509 399 269
    AT551U S 05 225 146 301 223 378 299 455 376 485 406 531 452 608 529 237 158
    S 06 193 99 270 175 346 252 423 329 454 359 500 405 576 482 653 558 284 190
    S 07 238 128 315 205 391 281 422 312 468 358 544 434 621 511 698 587 332 221
    S 08 283 157 360 234 390 264 436 310 513 387 589 464 666 540 819 693 379 253
    S 09 328 186 359 217 405 263 481 340 558 416 634 493 788 646 941 799 426 285
    S 10 373 216 450 292 526 369 603 445 756 599 909 752 474 316
    S 11 418 245 495 321 571 398 724 551 877 704 521 348
    S 12 463 274 540 351 693 504 846 657 568 379
    Spring
    set    		 The above value are the out-put torque that remain available to operate the valve when the part "2" is pressurized Out-put torque
    available when
    air supply fails
    torque output (nm)

    SPRING RETURN TORQUE

    Supply Pressure 2,5 bar 3 bar 3,5 bar 4 bar 4,2 bar 4,5 bar 5 bar 5,5 bar 6 bar 7 bar 8 bar Spring stroke
    Model Spring
    set    		 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 90° 0°
    Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End
    AT601U S 05 319 217 426 323 532 430 638 536 681 578 745 642 851 749 315 213
    S 06 277 154 383 260 489 367 596 473 638 515 702 579 808 686 915 792 378 255
    S 07 341 197 447 304 553 410 596 453 660 516 766 623 872 729 979 835 441 298
    S 08 404 241 511 347 553 390 617 453 723 560 830 666 936 772 1149 985 504 340
    S 09 468 284 511 327 575 390 681 497 787 603 894 709 1106 922 1319 1135 567 383
    S 10 532 327 638 434 745 540 851 646 1064 859 1277 1072 630 425
    S 11 596 371 702 477 809 583 1021 796 1234 1009 693 468
    S 12 660 414 766 520 979 733 1192 946 756 510
    AT651U S 05 533 372 712 551 890 730 1069 908 1141 980 1248 1087 1426 1266 521 360
    S 06 461 268 640 447 818 625 997 804 1068 876 1176 983 1354 1162 1533 1340 625 433
    S 07 568 343 746 521 925 700 996 771 1104 879 1282 1057 1461 1236 1640 1415 730 505
    S 08 674 417 853 596 924 667 1032 774 1210 953 1389 1132 1568 1310 1925 1668 834 577
    S 09 781 491 852 563 959 670 1138 849 1317 1028 1495 1206 1853 1564 2210 1921 938 649
    S 10 887 566 1066 745 1245 923 1423 1102 1781 1459 2138 1817 1042 721
    S 11 994 640 1173 819 1351 998 1709 1355 2066 1713 1146 793
    S 12 1101 715 1279 894 1637 1251 1994 1608 1251 865
    AT701U S 05 751 496 1011 755 1270 1015 1529 1274 1633 1378 1789 1533 2048 1793 801 546
    S 06 642 336 902 595 1161 854 1420 1114 1524 1217 1680 1373 1939 1632 2198 1892 961 655
    S 07 792 435 1052 694 1311 954 1415 1057 1570 1213 1830 1472 2089 1732 2349 1991
    S 08 943 534 1202 793 1306 897 1461 1053 1721 1312 1980 1571 2239 1831 2758 2350 1281 873
    S 09 1093 633 1197 737 1352 893 1612 1152 1871 1411 2130 1671 2649 2189 3168 2708 1442 982
    S 10 1243 732 1503 992 1762 1251 2021 1510 2540 2029 3059 2548 1602 1091
    S 11 1393 832 1653 1091 1912 1350 2431 1869 2950 2388 1762 1200
    S 12 1544 931 1803 1190 2322 1709 2840 2228 1922 1309
    AT751U S 05 1064 703 1423 1062 1782 1421 2141 1780 2284 1924 2500 2139 2859 2498 1092 731
    S 06 918 485 1277 844 1636 1203 1995 1562 2138 1706 2354 1921 2713 2280 3072 2639 1310 877
    S 07 1311 626 1489 985 1848 1344 1992 1487 2207 1703 2566 2062 2925 2421 3284 2780 1528 1023
    S 08 1343 766 1702 1125 1846 1269 2061 1484 2420 1843 2779 2202 3138 2561 3856 32759 1746 1170
    S 09 1556 907 1700 1051 1915 1266 2274 1625 2633 1984 2992 2343 3710 3061 4428 3779 1965 1316
    S 10 1769 1048 2128 1407 2487 1766 2846 2125 3564 2843 4282 3560 2183 1462
    S 11 1982 1188 2341 1547 2700 1906 3418 2624 4135 3342 2401 1608
    S 12 2194 1329 2553 1688 3271 2406 3989 3124 2620 1754
    AT801U S 05 1332 1014 1783 1465 2233 1915 2684 2365 2864 2546 3134 2816 3585 3266 1238 920
    S 06 1149 767 1599 1217 2049 1667 2500 2118 2680 2298 2950 2568 3401 3019 3851 3469 1486 1104
    S 07 1415 969 1865 1420 2316 1870 2496 2050 2766 2321 3217 2771 3667 3222 4118 3672 1733 1288
    S 08 1682 1172 2132 1623 2312 1803 2582 2073 3033 2524 3483 2974 3934 3424 4835 4325 1981 1472
    S 09 1948 1375 2128 1555 2398 1825 2849 2276 3299 2726 3750 3177 4651 4078 5551 4978 2229 1656
    S 10 2215 1578 2665 2028 3115 2479 3566 2929 4467 3830 5386 4731 2476 1839
    S 11 2481 1781 2931 2231 3382 2682 4283 3582 5184 4483 2724 2023
    S 12 2748 1983 3198 2434 4099 3335 5000 4236 2971 2207
    AT1001U S 05 2474 1695 3308 2529 4142 3362 4976 4196 5310 4530 5810 5030 6644 5864 2475 1695
    S 06 2135 1200 2969 2034 3803 2876 4637 3701 4971 4035 5471 4535 6035 5369 7139 6203 2970 2034
    S 07 2630 1539 3464 2373 4298 3206 4632 3540 5132 4040 5966 4874 6800 5708 7633 6542 3456 2373
    S 08 3125 1878 3959 2711 4292 3045 4793 3545 5627 4379 6461 5213 7294 6047 8962 7715 3960 2712
    S 09 3620 2217 3953 2550 4454 3050 5288 3884 6122 4718 6955 5552 8623 7220 10291 8887 4455 3051
    S 10 4115 2555 4949 3389 5783 4223 6616 5057 8284 6725 9952 8393 4949 3390
    S 11 4610 2894 5444 3728 6277 4562 7945 6230 9613 7898 5444 3729
    S 12 5105 3233 5938 4067 7606 5735 9274 7403 5939 4068
    Spring
    set    		 The above value are the out-put torque that remain available to operate the valve when the part "2" is pressurized Out-put torque
    available when
    air supply fails

    DOUBLE ACTING TORQUE

    Supply Pressure 2,5 bar 3 bar 3,5 bar 4 bar 4,2 bar 4,5 bar 5 bar 5,5 bar 6 bar 7 bar 8 bar
    Model
    AT045U D 6,0 7,2 8,4 9,6 10,1 10,8 12,0 13,2 14,4 16,8 19,1
    AT051U D 8,3 10,0 11,6 13,3 14,0 15,0 16,6 18,3 19,9 23,3 26,6
    AT101U D 14,7 17,6 20,5 23,5 24,6 26,4 29,3 32,2 35,2 41,0 46,9
    AT201U D 29,1 34,9 40,7 46,5 48,9 52,4 58,2 64,0 69,8 81,4 93,1
    AT251U D 45,8 54,9 64,1 73,2 76,9 82,4 91,5 100,7 109,8 128,1 146,4
    AT301U D 66,5 79,8 93,1 106 112 120 133 146 160 186 213
    AT351U D 107 129 150 172 181 193 215 236 258 301 344
    AT401U D 138 166 194 222 233 249 277 305 332 388 443
    AT451U D 217 261 304 348 365 391 435 478 522 609 696
    AT501U D 284 340 397 454 477 511 567 624 681 794 908
    AT551U D 383 459 536 613 643 689 766 842 919 1072 1225
    AT601U D 532 638 745 851 893 957 1064 1170 1276 1498 1702
    AT651U D 893 1072 1251 1430 1501 1608 1787 1966 2144 2502 2859
    AT701U D 1297 1556 1815 2075 2179 2334 2594 2853 3112 3631 4150
    AT751U D 1795 2154 2513 2872 3015 3213 3590 3949 4308 5026 5744
    AT801U D 2252 2703 3153 3604 3784 4054 4504 4955 5405 6306 7207
    AT1001U D 4169 5003 5837 6671 7005 7505 8339 9173 10007 11674 **
    ** AT1001U D operated with 8 bar (116 Psi) supply requires SPECIAL construction. Contact AIR TORQUE factory.
    torque output (lb-ln)

    SPRING RETURN TORQUE

    Supply Pressure 40 Psi 50 Psi 60 Psi 70 Psi 80 Psi 90 Psi 100 Psi 110 Psi 116 Psi Spring stroke
    Model Spring
    set    		 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 90° 0°
    Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End
    AT045U S 1-1 43,3 30,9 57,9 45,5 72,4 60,0 87,0 74,6 102 89,6 116 104 131 119 27,4 15,0
    S 1-2 35,3 15,8 49,9 30,4 64,4 44,9 79,0 59,5 94,0 74,5 108 88,5 123 103 138 119 42,5 23,0
    S 2-2 41,9 16,2 56,5 30,8 71,0 45,4 85,6 59,9 100 74,5 115 89,1 130 104 138 112 56,6 31,0
    S 2-3 50,3 16,6 68,4 31,2 79,4 45,8 94,0 60,3 109,0 74,9 124 90,2 132 98,2 70,8 37,2
    S 3-3 57,8 17,0 72,3 31,6 86,9 46,2 101,0 60,8 117 76,0 125 84,1 85,0 44,3
    AT051U S 1 51,9 34 72,2 54,4 92,5 74,7 113 94,9 133 115 153 136 174 156 47,1 29,2
    S 2 46,1 24,7 66,3 45,0 86,6 65 107 85,6 127 106 147 126 168 146 188 167 56,5 35,1
    S 3 40,2 15,2 60,5 35,5 81 55,8 101 76,1 121 96 142 117 162 137 182 157 194 169 65,9 40,9
    S 4 54,7 26,1 75 46,3 95,2 67 116 87 136 107 156 127 176 148 189 160 75 46,8
    S 5 48,8 16,7 69 37,0 89,4 57,3 110 78 130 98 150 118 171 138 183 151 84,8 52,6
    S 6 63,3 27,6 83,5 47,9 104 68 124 88,4 144 109 165 129 177 141 94,1 58,5
    S 7 57,4 18,1 77,7 38,4 98,0 58,7 118 79,0 139 99 159 120 171 132 104 64,3
    S 8 71,9 29,0 92,1 49,2 112,4 69,5 133 90 153 110 165 122 113 70,2
    AT101U S 05 94 68,5 130 104 166 140 201 176 237 212 273 247 309 283 74,7 49,1
    S 06 84,2 53,5 120 89,3 156 125 192 161 227 197 263 232 299 268 335 304 89,6 58,9
    S 07 74,4 38,6 110 74,4 146 110 182 146 218 182 253 218 289 253 325 289 346 311 105 68,8
    S 08 100 59,5 136 95,2 172 131 208 167 243 203 279 238 315 274 337 296 119 78,6
    S 09 126 80,3 162 116 198 152 234 188 269 223 305 259 327 281 134 88,4
    S 10 152 101 188 137 224 173 260 209 295 244 317 266 149 98,2
    S 11 178 122 214 158 250 194 286 229 307 251 164 108
    S 12 240 179 276 214 297 236 179 118
    AT201U S 05 186 131 257 202 328 273 399 344 470 415 541 486 612 557 153 97,8
    S 06 167 100 238 171 309 242 380 313 451 384 522 455 593 526 664 597 184 117
    S 07 147 70 218 141 289 212 360 283 431 354 502 425 573 496 644 567 687 609 214 137
    S 08 198 110 269 181 340 252 412 323 483 394 554 465 625 536 667 579 245 157
    S 09 250 150 321 221 392 292 463 363 534 434 605 505 648 548 276 176
    S 10 301 191 372 262 443 333 514 404 585 475 628 517 306 196
    S 11 353 231 424 302 495 373 566 444 608 487 337 215
    S 12 475 342 546 413 589 456 368 235
    AT251U S 05 285 191 396 303 508 415 620 526 731 638 843 750 955 862 256 162
    S 06 252 140 476 252 476 364 587 475 699 587 811 699 922 810 1034 922 307 195
    S 07 220 89 331 201 443 313 555 424 667 536 778 648 890 759 1002 871 1069 938 358 227
    S 08 299 150 411 261 522 373 634 485 746 597 858 708 969 820 1036 887 409 260
    S 09 378 210 490 322 602 434 713 545 825 657 937 769 1004 836 260 292
    S 10 457 271 569 383 681 494 793 606 904 718 971 785 511 325
    S 11 537 331 648 443 760 555 872 667 939 734 562 357
    S 12 728 504 839 616 906 683 613 389
    AT301U S 05 425 301 587 463 750 625 912 787 1074 950 1236 1112 1399 1274 349 224
    S 06 380 231 542 393 705 555 867 718 1029 880 1192 1042 1354 1205 1516 1367 418 269
    S 07 335 161 498 323 660 486 822 648 984 810 1147 973 1309 1135 1471 1297 1569 1395 488 314
    S 08 453 254 615 416 777 578 940 741 1102 903 1264 1065 1426 1227 1524 1325 558 359
    S 09 570 346 732 509 895 671 1057 833 1219 995 1382 1158 1479 1255 627 404
    S 10 688 439 850 601 1012 763 1174 926 1337 1088 1434 1185 697 449
    S 11 805 531 967 694 1130 856 1292 1018 1389 1116 767 493
    S 12 1085 786 1247 949 1344 1046 837 538
    AT351U S 05 687 470 949 732 1211 994 1474 1257 1736 1519 1998 1781 2260 2044 580 363
    S 06 614 354 876 616 1139 878 1401 1141 1663 1403 1926 1665 2188 1928 2450 2190 696 435
    S 07 541 238 804 500 1086 762 1328 1025 1591 1287 1853 1549 2115 1812 2378 2074 2535 2231 812 508
    S 08 731 384 993 646 1256 909 1518 1171 1780 1433 2043 1696 2305 1958 2463 2115 928 581
    S 09 921 530 1183 793 1446 1055 1708 1317 1970 1580 2233 1842 2390 1999 1044 653
    S 10 1111 677 1373 939 1635 1201 1898 1464 2160 1726 2317 1883 1160 726
    S 11 1300 823 1563 1085 1825 1348 2087 1610 2245 1767 1276 798
    S 12 1753 1232 2015 1494 2172 1652 1392 871
    AT401U S 05 888 623 1226 961 1564 1299 1902 1637 2240 1976 2578 2314 2916 2652 729 465
    S 06 795 477 1133 815 1471 1154 1809 1492 2147 1830 2485 2168 2823 2506 3161 2844 875 558
    S 07 702 331 1040 670 1378 1008 1716 1346 2054 1684 2392 2022 2730 2360 3069 2698 3271 2901 1021 651
    S 08 947 524 1285 862 1623 1200 1961 1538 2299 1876 2637 2214 2976 2552 3178 2755 1167 744
    S 09 1192 716 1530 1054 1868 1392 2206 1730 2544 2068 2883 2407 3085 2609 1313 837
    S 10 1437 908 1775 1246 2113 1584 2452 1923 2790 2261 2993 2464 1459 930
    S 11 1682 1100 2020 1439 2359 1777 2697 2115 2900 2318 1604 1023
    S 12 2266 1631 2604 1969 2807 2172 1750 1116
    AT451U S 05 1394 983 1925 1514 2456 2044 2987 2575 3517 3106 4048 3637 4579 4167 1140 729
    S 06 1248 755 1779 1285 2310 1816 2841 2347 3372 2878 3902 3409 4433 3939 4964 4470 1368 875
    S 07 1103 527 1633 1057 2164 1588 2695 2119 3226 2650 3757 3181 4287 3711 4818 4242 5137 4561 1597 1021
    S 08 1488 829 2018 1360 2549 1891 3080 2422 3611 2952 4142 3483 4672 4014 4991 4333 1825 1166
    S 09 1873 1132 2403 1663 2934 2194 3465 2724 3996 3255 4527 3786 4845 4104 2053 1312
    S 10 2258 1435 2788 1965 3319 2496 3850 3027 4381 3558 4699 3876 2281 1458
    S 11 2643 1737 3173 2268 3704 2799 4235 3330 4553 3648 2509 1604
    S 12 3558 2571 4089 3102 4408 3420 2737 1750
    AT501U S 05 1777 1300 2469 1992 3162 2685 3854 3377 4547 4070 5239 4762 5931 5455 1470 993
    S 06 1578 1006 2271 1689 2963 2391 3655 3083 4348 3776 5040 4468 5733 5161 6425 5853 1764 1192
    S 07 1380 712 2072 1404 2764 2097 3457 2789 4149 3482 4842 4174 5534 4867 6227 5559 6642 5975 2058 1390
    S 08 1873 1110 2566 1803 3258 2495 3951 3188 4643 3880 5336 4573 6028 5265 6444 5681 2352 1589
    S 09 2367 1509 3060 2201 3752 2894 4445 3586 5137 4279 5829 4971 6245 5387 2646 1788
    S 10 2861 1907 3553 2600 4246 3292 4938 3985 5631 4677 6046 5093 2940 1986
    S 11 3305 2306 4047 2998 4740 3691 5432 4383 5848 4799 3234 2185
    S 12 4541 3397 5234 4089 5649 4505 3528 2383
    AT551U S 05 2340 1644 3275 2578 4210 3513 5145 4448 6079 5383 7014 6318 7949 7253 2096 1399
    S 06 2060 1225 2995 2159 3930 3094 4865 4029 5800 4964 6734 5899 7669 6833 8604 7768 2515 1679
    S 07 1780 805 2715 1740 3650 2675 4585 3610 5520 4545 6454 5480 7389 6414 8324 7349 8885 7910 2934 1959
    S 08 2435 1321 3370 2256 4305 3191 5240 4126 6175 5060 7109 5995 8044 6930 8605 7491 3353 2239
    S 09 3090 1837 4025 2772 4960 3706 5895 4641 6830 5576 7764 6511 8325 7072 3772 2519
    S 10 3745 2353 4680 3287 5615 4222 6550 5157 7485 6092 8045 6653 4191 2798
    S 11 440 2868 5335 3803 6270 4738 7205 5673 7766 6234 4610 3078
    S 12 5990 4319 6925 5254 7486 5814 5030 3358
    Spring
    set    		 The above value are the out-put torque that remain available to operate the valve when the part "2" is pressurized Out-put torque
    available when
    air supply fails
    torque output (lb-ln)

    SPRING RETURN TORQUE

    Supply Pressure 40 Psi 50 Psi 60 Psi 70 Psi 80 Psi 90 Psi 100 Psi 110 Psi 116 Psi Spring stroke
    Model Spring
    set    		 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 0° 90° 90° 0°
    Start End Start End Start End Start End Start End Start End Start End Start End Start End Start End
    AT601U S 05 3312 2406 4610 3704 5908 5003 7207 6301 8505 7599 9803 8898 11102 10196 2787 1882
    S 06 2935 1849 4234 3147 5532 4445 6830 5744 8129 7042 9427 8340 10725 9639 12024 10937 3345 2258
    S 07 2559 1291 3857 2589 5156 3888 6454 5186 7752 6485 9051 7783 10349 9081 11648 10380 12427 11159 3902 2634
    S 08 3481 2032 4779 3330 6078 4629 7376 5927 8674 7225 9973 8524 11271 9822 12050 10601 4460 3011
    S 09 4403 2773 5701 4071 7000 5370 8298 6668 9596 7966 10895 9265 11674 10044 5017 3387
    S 10 5325 3514 6623 4812 7922 6110 9220 7409 10518 8707 11297 9486 5575 3763
    S 11 6247 4255 7545 5553 8844 6851 10142 8150 10921 8929 6132 4140
    S 12 8467 6294 9766 7592 10545 8371 6690 4516
    AT651U S 05 5355 4113 7716 6294 9898 8475 12079 10657 14260 12838 16441 15019 18623 17200 4612 3190
    S 06 4897 3190 7078 5372 9260 7553 11441 9734 13622 11915 15803 14097 17985 16278 20166 18459 5534 3828
    S 07 4259 2268 6440 4449 8622 6631 10803 8812 12984 10993 15165 13174 17347 15356 19528 17537 20837 18845 6457 4466
    S 08 5802 3527 7984 5708 10165 7889 12346 10071 14527 12252 16709 14433 18890 16614 20199 17923 7379 5104
    S 09 7346 4786 9527 6967 11708 9148 13889 11329 16071 13511 18252 15692 19561 17001 8302 5742
    S 10 8889 6045 11070 8226 13251 10407 15433 12588 17614 14770 18923 16078 9224 6380
    S 11 10432 7303 12613 9485 14795 11666 16976 13847 18285 15156 10147 7018
    S 12 14157 10743 16338 12925 17647 14233 11069 7656
    AT701U S 05 7836 5576 11002 8742 14168 11907 17333 15073 20499 18239 23665 21405 26831 24571 7088 4828
    S 06 6870 4158 10036 7324 13202 10490 16368 13656 19534 16822 22700 19987 25865 23153 29031 26319 8505 5793
    S 07 5905 2741 9071 5906 12236 9072 15402 12238 18568 15404 21734 18570 24900 21736 28066 24902 29965 26801 9923 6759
    S 08 8105 4489 11271 7655 14437 10821 17603 13986 20769 17152 23934 20318 27100 23484 29000 25384 11340 7724
    S 09 10305 6237 13471 9403 16637 12569 19803 15735 22969 18901 26135 22067 28034 23966 12758 8690
    S 10 12506 7986 15672 11151 18837 14317 22003 17483 25169 20649 27069 22549 14176 9655
    S 11 14706 9734 17872 12900 21038 16066 24204 19231 26103 21131 15593 10621
    S 12 20072 14648 23238 17814 25138 19713 17011 11586
    AT751U S 05 11059 7868 15441 12250 19823 16632 24205 21014 28587 25395 32969 29777 37351 34159 9660 6469
    S 06 9765 5936 14147 10318 18529 14700 22911 19081 27293 23463 31675 27845 36057 32227 40439 36610 11592 7763
    S 07 8471 4004 12853 8386 17235 12767 21617 17149 25999 21531 30381 25913 34763 30295 39146 34678 41774 37306 13524 9056
    S 08 11560 6454 15942 10835 20323 15217 24705 19599 29087 23981 33469 28363 37852 32746 40480 35374 15456 10350
    S 09 14648 8903 19030 13285 23412 17667 27794 22049 32176 26431 36558 30814 39187 33442 17388 11644
    S 10 17736 11353 22118 15735 26500 20117 30882 24499 35264 28882 37893 31510 19320 12938
    S 11 20824 13803 25206 18185 29588 22567 33971 26950 36599 29578 21252 14231
    S 12 28294 20635 32677 25018 35305 27646 23184 15525
    AT801U S 05 13855 11037 19353 16536 24852 22034 30350 27533 35849 33031 41347 38530 46846 44028 10957 8140
    S 06 12227 8846 17725 14344 23224 19843 28722 25341 34221 30840 39719 36338 45218 41837 50717 47335 13149 9767
    S 07 10599 6654 16097 12153 21596 17651 27094 23150 32593 28648 38091 34147 43590 39645 49089 45144 52388 48443 15340 11395
    S 08 14469 9961 19968 15460 25466 20958 30965 26457 36464 31955 41962 37454 47461 42953 50760 46252 17531 13023
    S 09 18340 13268 23839 18767 29337 24265 34836 29764 40334 35263 45833 40761 49132 44060 19723 14651
    S 10 22211 16576 27709 22074 33208 27573 08706 33071 44205 38570 47504 41869 21914 16279
    S 11 26081 19883 31580 25381 37078 30880 42577 36378 45876 39677 24106 17907
    S 12 35450 28688 40949 34187 44248 37486 26297 19535
    AT1001U S 05 25715 18812 35894 28991 46073 39170 56252 49349 66431 59528 76610 69707 86790 79887 21904 15001
    S 06 22715 14432 32894 24611 43073 34790 53252 44969 63431 55148 73610 65327 83789 75506 93968 85658 26285 18001
    S 07 19715 10051 29894 20230 40073 30409 50252 40588 60531 50767 70610 60946 80789 71125 90968 81304 97076 87411 30665 21001
    S 08 26894 15849 37073 26028 47252 36207 57431 46386 67610 56565 77789 66744 87968 76923 94076 83031 35046 24001
    S 09 34073 21647 44252 31826 54431 42005 64610 52184 74789 62364 84968 72543 91075 78650 39427 27001
    S 10 41252 27455 51431 37634 61610 47813 71789 57992 81968 68171 88075 74278 43799 30002
    S 11 48431 33253 58610 43432 686789 53611 78968 63790 85075 69897 48179 33002
    S 12 55609 39051 65788 49230 75967 59409 82075 65517 52560 36002
    Spring
    set    		 The above value are the out-put torque that remain available to operate the valve when the part "2" is pressurized Out-put torque
    available when
    air supply fails

    DOUBLE ACTING TORQUE

    Supply Pressure 40 Psi 50 Psi 60 Psi 70 Psi 80 Psi 90 Psi 100 Psi 110 Psi 116 Psi
    Model
    AT045U D 58,3 72,9 87,4 102 117 131 146 161 169
    AT051U D 81,1 101 122 142 162 183 203 223 235
    AT101U D 143 179 215 251 286 322 358 394 415
    AT201U D 284 355 426 497 568 639 710 781 824
    AT251U D 447 559 670 782 894 1005 1117 1229 1296
    AT301U D 649 811 974 1136 1298 1461 1623 1785 1883
    AT351U D 1049 1312 1574 1836 2099 2361 2623 2886 3043
    AT401U D 1352 1691 2029 2367 2705 3043 3381 3719 3922
    AT451U D 2123 2654 3185 3716 4246 4777 5308 5839 6157
    AT501U D 2770 3462 4155 4847 5540 6232 6925 7617 8032
    AT551U D 3739 4674 5609 6544 7479 8413 9348 10283 10844
    AT601U D 5193 6492 7790 9088 10387 11685 12984 14282 15061
    AT651U D 8725 10906 13087 15269 17450 19631 21812 23994 25302
    AT701U D 12663 15829 18995 22161 25327 28493 31659 34825 36724
    AT751U 17528 21910 26292 30674 35056 39438 43820 48202 50831
    AT801U D 21994 27493 32991 38490 43988 49487 54985 60484 63783
    AT1001U D 40716 50895 61074 71253 81432 91611 101790 111969 **
    ** AT1001U D operated with 8 bar (116 Psi) supply requires SPECIAL construction. Contact AIR TORQUE factory.
    spring set configuration

    AT045U configuration

    Spring
    Set    		 Side B Side A
    AT045U
    Spring type    		 AT045U
    Spring type
    S1-1 1 (green) 1 (green)
    S1-2 1 (green) 2 (red)
    S2-2 2 (red) 2 (red)
    S2-3 2 (red) 3 (black)
    S3-3 3 (black) 3 (black)

    AT051U configuration

    Spring
    Set    		 Side B Side A
    AT051U
    Internal
    Spring type    		 AT051U
    External
    Spring type    		 AT051U
    Internal
    Spring type    		 AT051U
    External
    Spring type
    S1 1 (green) --- --- 2 (black)
    S2 --- 2 (black) --- 2 (black)
    S3 --- 2 (black) --- 3 (red)
    S4 --- 3 (red) --- 3 (red)
    S5 --- 3 (red) 1 (green) 2 (black)
    S6 1 (green) 2 (black) 1 (green) 2 (black)
    S7 1 (green) 2 (black) 1 (green) 3 (red)
    S8 1 (green) 3 (red) 1 (green) 3 (red)

    AT101U to AT1001U configuration

    TYPICAL TORQUE CURVES FOR RACK PINION ACTUATORS

    Torque output double acting

    The double acting actuator has constant torque over the whole stroke, so that a I that needs to be known for sizing is the maximum valve torque, which . s multiplied by a sa- fety factor (usually at least 25%-30% cepencinc on the valve anc service). The value thus ootainec is then corn- parec with figures in the minimum air pressure column in the actuator torque tables. After having found the same or nearest value (in excess), the suitable actuator model can be read from the co umn to the left.

    Torque output spring return

    The spring return actuator has four different torque values: the air torcues at 0° and 93° when it is pressurized, anc the spring torques at 90° anc 0° when the pressure is discharcec. For a correct sizinc, the torque curves of the actuator in oath strokes have to be higher than the valve torque curves. Also for the spring return actuator sizing, the valve torques have to be multioliec by a safety factor (usual y at east 25%-30% depending on the valve anc service). The 4th Generation Line Upgrade Series are de- sicnec to give a balancec torque when the number of springs per sloe is equal to the air pressure suppy in oar (for example 4 bar, 4 springs ger sice).
    actuator interface for automation

    COUPLING AND BRACKETS

    Air Torque has a larses stock of couolings anc orackets. All the accessories for valve automa- tion availaole on request.
    standard protection levels
    parts coating
    Body (AT045U to AT751U) ALODUR anodized
    Body (AT801U and AT1001U) Anodized plus epoxy primer, plus
    polyurethane coating (RAL9007 grey)
    End -caps
    (AT045U to AT801U    		 Anodized plus polyester coating
    (RAL9007 - grey - or RAL5015 blue
    End -caps (AT1001U) Anodized plus polyester
    coating (RAL9007 - grey)
    Carbon steel drive shaft
    (AT051U to AT801U)    		 ENP
    Aluminum alloy drive shaft
    (AT045U and AT1001U)    		 ALODUR anodized
    protection level a
    parts coating
    Body ALODUR anodized plus PTFE coating
    (light grey)
    End-caps Anodized plus PTFE coating
    (light grey)
    Carbon steel drive shaft
    (AT051U to AT801U)    		 ENP
    Aluminum alloy drive shaft
    (AT045U to AT1001U)    		 ALODUR anodized
    protection level d
    parts coating
    Body ALODUR anodized plus epoxy coating
    (RAL7046 - grey)
    End-caps Anodized plus epoxy coating
    (RAL7046 - grey)
    Stainless steel drive shaft ENP
    Stainless steel 316
    fasteners    		 NA
    protection level f
    parts coating
    Body ALODUR anodized plus PTFE coating
    (light grey)
    End-caps Anodized plus polyester coating
    (RAL9007-grey or RAL5015 blue)
    End-caps (AT1001U) Anodized plus polyester coating
    (RAL9007-grey)
    Carbon steel drive shaft
    (AT051U to AT801U)    		 ENP
    Aluminum alloy drive shaft
    (AT045U to AT1001U)    		 ALODUR anodized
    protection level b
    parts coating
    Body ALODUR anodized plus PTFE coating
    (light grey)
    End-caps Anodized plus PTFE coating
    (light grey)
    Stainless steel drive shaft ENP
    protection level e
    parts coating
    Body (AT045U to AT751U) ALODUR anodized
    Body (AT801U to AT1001U) Anodized
    End-caps Anodized
    Carbon steel drive shaft
    (AT051U to AT801U)    		 ENP
    Aluminum alloy drive shaft
    (AT045U to AT1001U)    		 ALODUR anodized
    protection level p
    See technical data -sheet for protection details
    available options and ordering codes
    0 Blank: octi-cam assem eo for standard travel stop adjustment
    K: octi-cam assemolec for ock-out capability (stroke adjustment limited at +/-5°).    		 7 XXD (square dimensions): single square dimension and diagonal assembling
    XXL: since square dimension and parallel assembling
    XXDS: dimension anc double square
    S x d (a): flat head dimension
    W x d: double keys dimension
    00 Blank: for standard actuator
    R50: 50% travel stop limitation (45° up to 90°)
    R100: 100% travel stop limitation (0 up to 90°)
    FA: fast acting
    FM: fail mid 180° rotation
    3P: 3 position (only for spring return)
    3PD: 3 position (both for spring return and double acting)
    HC: hydraulic damper
    TS: top smart connection     		8 Blank: actuator with standard seals suitable for -40°(-40°F) to 80°C(+176°F)
    HT: actuator construction suitable for -15°(-5°F) to 150°C(+302°F)
    LLT: actuator construction suitable for -55°(-67°F) to 80°C(+176°F)
    1 Actuator model, series and rotation
    AT045U to AT1001U: 90°(standard)
    AT052U to AT752U: 120°
    AT053U to AT753U: 135°
    AT058U to AT758U: 180°     		9 Blank: standard assembling type ST, clockwise to close (spring to close) and close indication at air failure condition (or with pressurized port 4 for double acting) for in line mounting.

    STR: clockwise to close (spring to close) and close indication at air failure condition (or with pressurized port 4 for double acting) for across line mounting.

    LF: counterclockwise to close (spring to open) and open indication at air failure condition (or with pressurized port 4 for double acting) for across line mounting.

    LFR: counterclockwise to close (spring to open) and open indication at air failure condition (or with pressurized port 4 for double acting) for in line mounting.

    2 S: spring return
    D: double acting
    3 Only for spring return: number of springs, spring configuration set
    4 A, B, D, E, F, P: Protection level
    5 ISO Flange
    6 Blank: no spigot
    Y: with spigot     		10 Further requested options
    (a) head fat orientation to be specifiec

    Examples of model designation

    0 00 1 2 3 4 5 6 7 8 9 10
    - - AT201U S 12 B F05-F07 Y 14D HT - -
    AT201, Upgrade Series, spring return with 12 springs, protection level B, ISO fiance F05-F07 with spigot, 14 mm diagonal single square and high temperature construction.
    0 00 1 2 3 4 5 6 7 8 9 10
    K - AT351U D - A F07-F10 - 17DS - LFR -
    AT351, Upgrade series, with lock-out capability, double acting, protection level A, ISO flange F07-F10, 17 mm double square and counterclockwise to dose (spring to open) and open incication at air failure condition (or with pressurized port 4 for double acting) for in line mounting.
    quality product

    - All the Air Torque products are designed, developed and manufactured in Italy.
    - Each individual actuator is factory inspected and tested.
    - Each individual actuator is supplied with Certificate of Conformity.
    - Each individual actuator has a serial number for full traceability.
    - Each individual actuator is packed in a special cardboard carton for protection, with a product description label for easy identification and includes installation, operation and maintenance instructions in 5 languages.

    air TORQUE product design and testing