Pneumatic Rotary Actuator Double Acting As Per ISO 5211
METHOD OF TRANSMISSION - RACK AND PINION TYPE
ACTUATION - DOUBLE ACTING
BODY - EXTRUDED ALUMINIUM HARD ANODIZED
CAPS AND RACK - ALUMINIUM PRESSURE DIE CAST
PINION - EN 8
SEALS - BUNA – N / Viton
AIR PRESSURE - NORMAL AIR SUPPLY PRESSURE: 4KG/CM² MAX, AIR SUPPLY PRESSURE: 8KG/CM²
ACTUATOR DESIGN - ISO 5211 (ACTUATOR CAN BE QUICKLY AND EASILY MOUNTING)
ROTATION - 90° / 180° ROTATION
TORQUE - UP TO 13673 NM
QSB International Trading W.L.L. offers a wide range of double-acting pneumatic actuators including rack & pinion and scotch & yoke transmission methods. We use Extruded Aluminium Hard Anodized for the body and Aluminium Pressure Die Cast for caps & rack. While the pinions are made from EN8 and the seals are available in BUNA – N and in Viton. In the making of our products, we use only high-graded quality raw materials. We maintain the international standard and designed it as per ISO 5211. Due to this design, the mounting becomes quick and easy with any valve.
This pneumatic double-acting actuator requires normal air pressure from 4Kg/cm² (alt+0178 for ²) to a maximum 8Kg/cm² air supply. With this air supply, it can generate up to 13673 NM torque.
Mechanism of Double Acting Pneumatic Actuator
With the help of piston-connected racks, the center rod connected pinion rotates on its axis. When the pressurized air enters the chamber from port – 1, the piston pushes forward and the connected rack rotates the central pinion. To get the earlier position, pneumatic air enters from port -2 and pushes back the piston to its earliest position. Hence the piston-connected rack moves backward and also rotates the pinion. In rack & pinion transmitted double acting pneumatic actuators do not use springs like single-acting pneumatic actuators. The double-acting actuators required air supply twice to complete one cycle. As a result, these actuators provide full control over the connected valve.
Uses of Double Acting Actuator
The Double Acting Pneumatic Actuators provide 90° and 180° Rotation. These actuators are very friendly and widely used to operate quarter-turn valves. Where huge pressure is required to open or close the flow line for a long time, these actuators are ideal for that. To control flammable gas pipelines or refineries remotely, these actuators are the best fit as they provide spark-free transmission.