For applications where gas leakage integrity matters, use the Gmcair Shut-Off Damper.
Available in Pneumtic Isolation , Electric Isolation and Manual control configurations, the Shut-Off Damper is designed for operation to ensure leakage is kept to a minimum without compromising on ATEX third party approval.
As with many of our products, the SOD is highly versatile device for use in both safe and hazardous areas. Its design is totally customisable, from simple control layouts to SIL 2 certified assemblies where reliability is critical.
The shut-off damper is opened and closed manually, by turning a hand wheel. Turning the hand wheel approx. 30 times moves the blades into the corresponding end position. Turning the hand wheel clockwise closes the damper.
The shut-off damper is opened and closed with an electric actuator.
The control input signal is provided by others.
In case of a power failure the shut-off damper can be opened or closed manually by turning the hand wheel.
The shut-off damper is opened and closed with a double acting pneumatic actuator.
The easiest way to generate the control input signal is electrically, using solenoid valves.
Different opening and closing times can be set using throttle valves.
The running time is at least 2 seconds.