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Pneumatic actuator, single acting and other mounting elements
PRINCIPLE OF SINGLE ACTUATOR FUNCTION:
The vertical air-spring (single-acting) pneumatic actuator is widely used in operations requiring a restart in a short period of time, with the advantage of its rapid and accurate response. The valve is opened by compressed air.
- Control shaft diameter 17 mm
- Drive height with carrier: 185 mm
- Drive diameter: 85.3 mm
- Torque: 20 Nm
- Control pressure: 4-8 bar (5-7 bar recommended)
- Operating temperature: –10 ° C to 100 ° C
- Adjustment speed: 1.5 sec / 90 °
- Material stainless steel AISI 304
Pneumatic single-acting actuator (air / spring) is used for opening and closing butterfly valves with compressed air (recommended value for safe valve opening is 5 - 8Bar). The spring of the pneumatic actuator serves for closing the butterfly valve (without control air pressure) or in case of decreasing control air pressure for safe closing of the valve (damper).
To control the pneumatic actuator, the actuator must be supplemented with a pilot (electromagnetic) valve for controlling the compressed air supply. The valve can also be equipped with inductive sensors to indicate the actual valve position (open / closed). This configuration allows you to operate the damper via a feedback control system in which position the damper is located.
The position of the flap is also indicated (visually) by a pin which is mounted on the control shaft.