Features:
Size 32mm to 270mm
Body Anodised Aluminium
End Caps Epoxy coated aluminium
Pinion Nickel Plated Steel
Fixings 316 Stainless Steel
Actuation Double Acting Pneumatic
Incorporates the latest mechanical technology (rack and pinion design) to give long service life with light weight and high performance. Features include end of stroke adjustment, namur interface, visual Indicator and ISO mounting interface. Options include IP67 limit switch box with visual Indicator, Namur (direct mount) solenoid valves and a range of inserts to step the drive down.
Air Consumption FAD in Litres (1 litre = 1000cm³)
To work out L/min multiply the value in the table by the number of strokes in a minute.
| Model | ISO5211 | A | B | C | D | E | F | G | H | ⌀I | ⌀J | K | ⌀L | N | ⌀M | O | P | Q | R | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DA32 | F03 | 110 | 23.5 | 23.5 | 45 | 20 | 25 | 50 | 10^ | 36 | - | 9 | - | 14 | 4 x M5*7.5 | 1/8” | 12^ | 16^ | M5*7 | 11 |
| DA50 | F03/F05 | 138 | 30 | 41 | 70 | 20 | 30 | 80 | 26.5 | 36 | 50 | 11 | 4 x M6*9 | 12 | 4 x M5*7.5 | 1/8” | 12 | 16 | M5*7 | 11 |
| DA63 | F05/F07 | 162 | 35.5 | 45 | 80 | 20 | 30 | 80 | 27.5 | 50 | 70 | 14 | 4 x M8*12 | 16 | 4 x M6*8 | 1/8” | 12 | 16 | M5*7 | 11 |
| DA75 | F05/F07 | 208 | 42 | 52.5 | 97 | 20 | 30 | 80 | 35 | 50 | 70 | 17 | 4 x M8*12 | 19 | 4 x M6*8 | 1/8” | 12 | 16 | M5*7 | 17 |
| DA88 | F05/F07 | 245 | 49 | 60 | 116 | 20 | 30 | 80 | 46 | 50 | 70 | 17 | 4 x M8*12 | 19 | 4 x M6*8 | 1/8” | 12 | 16 | M5*7 | 17 |
| DA100 | F07/F10 | 266 | 55 | 68 | 122 | 20 | 30 | 80 | 50 | 70 | 102 | 17 | 4 x M10*14 | 20 | 4 x M8*8 | 1/4” | 12 | 16 | M5*7 | 17 |
| DA115 | F07/F10 | 310 | 64 | 73 | 142 | 30 | 30 | 130 | 50 | 70 | 102 | 22 | 4 x M10*14 | 24 | 4 x M8*12 | 1/4” | 12 | 16 | M5*7 | 27 |
| DA125 | F07/F10 | 340 | 68 | 80 | 154 | 30 | 30 | 130 | 61 | 70 | 102 | 22 | 4 x M10*14 | 24 | 4 x M8*12 | 1/4” | 12 | 16 | M5*7 | 27 |
| DA145 | F10/F12 | 401 | 78.5 | 90 | 179 | 30 | 30 | 130 | 73 | 102 | 125 | 27 | 4 x M12*18 | 24 | 4 x M10*15 | 1/4” | 12 | 16 | M5*7 | 27 |
| DA160 | F10/F12 | 430 | 86.5 | 100 | 192 | 30 | 30 | 130 | 83.5 | 102 | 125 | 27 | 4 x M12*18 | 24 | 4 x M10*15 | 1/4” | 12 | 16 | M5*7 | 27 |
| DA180 | F10/F14 | 482 | 102 | 102 | 222 | 30 | 30 | 130 | 60 | 140 | - | 36 | - | 39 | 4 x M16*25 | 1/4” | 12 | 16 | M5*7 | 30 |
| DA200 | F10/F14 | 532 | 112 | 112 | 244 | 30 | 30 | 130 | 63 | 140 | - | 36 | - | 39 | 4 x M16*25 | 1/4” | 12 | 16 | M5*7 | 30 |
| DA240 | F16 | 662 | 133 | 133 | 288 | 30 | 30 | 130 | 85 | 165 | - | 46 | - | 49 | 4 x M20*30 | 1/4” | 20 | 22.5 | M6*8 | 30 |
| DA270 | F16 | 730 | 153 | 153 | 323 | 30 | 30 | 130 | 106 | 165 | - | 46 | - | 49 | 4 x M20*30 | 1/4” | 20 | 22.5 | M6*8 | 30 |
| DA380 | F16 | 774 | 162 | 173 | 352 | 30 | 30 | 130 | 165 | - | 46 | - | 55 | 4 x M20*30 | 1/2" | 20 | 22.5 | M6*8 | ||
| DA570 | F16/F25 | 912 | 190 | 195 | 408 | 30 | 30 | 130 | 165 | 254 | 46 | 8 x M16*25 | 55 | 4 x M20*30 | 1/2" | 20 | 22.5 | M6*8 | ||
| DA800 | F16/F25 | 945 | 260 | 260 | 464 | 30 | 30 | 130 | 165 | 254 | 46 | 8 x M16*25 | 60 | 4 x M20*30 | 1/2" | 20 | 22.5 | M6*8 |
All dimensions in mm unless shown otherwise.
Size 32mm to 270mm
Body Anodised Aluminium
End Caps Epoxy coated aluminium
Pinion Nickel Plated Steel
Fixings 316 Stainless Steel
Actuation Double Acting Pneumatic
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What is a Double Acting Rack & Pinion Pneumatic Actuator?
A Double Acting Rack and Pinion Rotary Pneumatic Actuator is designed to turn 90 degrees and is mainly used to actuate ball, butterfly and plug valves through a 90 degree rotation. Air pressure is used to operate the actuator by the force of the air acting on the surface area of the piston which then moves the pinion. The base of the pinion is attached to the valve stem. Air pressure is needed to open or close the valve (Double Acting). Double Acting actuators come in various sizes and corresponding torque ranges, with the torque increasing as the bore size increases (larger surface area of the piston).
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How does a Double Acting Rack & Pinion Actuator work?
The Rack and Pinion are a pair of gears which convert linear motion into rotational motion. The rack with its piston head and seals engages teeth on the circular gear called the pinion giving rotational motion. Our actuator uses two piston-type racks moving in opposite directions (double acting) to give a balanced force on the central pinion. Pneumatic air pressure is used to operate the actuator. The base of the pinion is attached to the valve stem. Air pressure is needed to either open or close the valve. Double acting will not have a fail safe position unlike a spring return actuator and if air is removed it will rest in its place. As air pressure increases the force on the surface area of the piston is increased resulting in higher torque from the actuator.
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How do I size a Double Acting Actuator?
The actuator sizing is based on the torque requirement for the valve to be actuated. From the valve data sheet obtain the Working Torque Nm (torque required to turn the valve at the required pressure, temperature and media viscosity) and add a minimum 30% safety factor. Always check breakaway- torque for the valve. Especially on butterfly valves this can be higher than the working torque because of the unseating of the valve disc off the seats. Using this find the corresponding double acting actuator with this torque figure (or greater) and select. Also check the valve mounting pad configuration against the valve hole pattern. It may be necessary to step up an actuator size to accommodate ease of mounting.
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How long will my Double Acting Air Actuator Last?
Like any valve this depends upon the usage case of your double acting actuator, its environment, media and how many times it is cycled. These are available as spare parts in a repair kit. The actuators life will depend upon how clean and dry the supply air is (the air that makes the actuator operate) however we regularly test these to over 800,000 cycles. Install a basic air filter if you are not sure about the quality of your air, we have pneumatic actuators that have been in operation for decades. The most common failure we see is due to dirty wet air used in the actuator. A FRL unit in the air supply will help with contaminated air. We have had these actuators operating for decades without any maintenance.
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How do I install a Double Acting Pneumatic Actuator?
The DA actuator can be installed either by direct mounting (ours have an ISO 5211 compatible mounting interface) or via an adaptor to any ball, butterfly or plug valve that requires a 90 degree rotation. The actuator can be mounted in any position and tolerate most environments. If the valve does not have the ISO 5211 mounting pad an adaptor can be customized to fit. Different drive sleeves can also be supplied to accommodate various stems. Namur valves directly interface onto the actuator for control and feedback can be achieved by mounting a suitable limit switch box directly onto the ISO indicator area.Speed of rotation can be controlled with precision using inline or exhaust speed controllers. Force (torque) can be regulated by pressure control of the air supply vai the FRL.
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What are typical uses of a Rack & Pinion Double Acting Pneumatic Actuator?
Applying rotational control through 90 degrees the double acting pneumatic actuator can operate ball, butterfly and plug valves in many sizes. There are many uses outside actuating a valve and we have even seen our actuators used on sheep gates. Pneumatic actuators use compressed air giving reliability in difficult environments, explosive atmospheres and where electrically cannot be supplied. Been double acting it has no fail safe position (unlike spring return) so is not used in applications where this is needed.
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How long will my product take to get to me?
This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.
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What warranty do I get?
All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all actuators leave our warehouse tested (full material and testing certificates to API598 are available) and inspected so there are rarely any issues. Also once your valve is in and operating it will most likely continue to do so for a very long time barring any debris getting caught in the valve or power spikes causing the coil to fail..
