The gastight circular shut-off damper, type GD-C, in solid and maintenance-free design, is used for systems with high tightness requirements.

Features:

•The actual leakage rates for housings and seat of damper blade are much lower than specified in the requirement according to DIN 25 496.

•The damper is designed to operate without any failure at an operating pressure of 1.1- times of the admissible operating pressure of the damper.

•The tightness of seat of damper blade is testable in built-in situation.

•For maintenance purposes, e. g. lubricating, if required, there is no dismantling of the damper from the duct system necessary.

•All media touched parts are welded continuously and without gaps to ensure an easy decontamination.