Pneumatically operated butterfly valves, welded (S-S), standard DIN 11850-1
Pneumatic single-acting actuator (air/spring) is used for opening and closing direct valves with compressed air (recommended value for safe opening of the damper is 5 – 7 bar). The spring of the pneumatic actuator serves for the closing of the direct damper (without control air pressure) or in case of decreasing control air pressure for a safe closing of the valve (damper).
Technical Parameters of Pneumatic Actuator
- Actuating shaft diameter 17 mm.
- Height of actuator with shaft: 185 mm
- The diameter of drive: 85.3 mm
- Torque: 20 Nm
- Operating pressure: 4–8 bar (recommended 5–7 bar)
- Working temperature: –10 ° C to 100 ° C
- Operation speed: 1.5 sec / 90 °
- Material: AISI 304
Pneumatic single-acting actuator (air/spring) is used for opening and closing direct valves with compressed air (recommended value for safe opening of the damper is 5 – 7 bar). The spring of the pneumatic actuator serves for the closing of the direct damper (without control air pressure) or in case of decreasing control air pressure for a 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 damper can also be equipped with inductive sensors to indicate the actual damper 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.
