The specially designed kinematical mechanism secures the damper blade at the end positions “open” and “close” by means of special toggle levers in case of a failure of energy support. Two concentric sealing rings fixed to the damper seat create high tightness as well as a test groove in the gap between the two sealing rings. In order to test …

The shut-off damper consists of a damper housing, a hinged damper blade with the damper shaft as its bearings, and an actuating cylinder moving the damper blade by an actuating equipment. A sealing profile made of silicone rubber is fastened to the damper blade by a leading bar. Upon closure of the damper, this sealing profile is pressed against the …

Deze gasdichte afsluitkleppen voldoen aan de hoogste norm (nucleaire norm: DIN 25 496). Niet alleen de behuizing maar ook het gesloten klepblad voldoen aan deze hoogste normering. De luchtdichtheid op basis van de norm DIN 25 496 (voor nucleaire toepassingen) is de hoogst haalbare normering als het gaat om gasdichtheid van de kleppen en behuizing (lekkage …

 De Terugslagklep is hittebestendig tot 90 ͦ C De behuizing uit verzinkt staal Behuizing uit Edelstaal 1.4541 (AISI/SAE 321) is tegen meerprijs leverbaar Lekkage: –    (outer tightness) Admissible leakage rate damper housing:  10 l / (h×m²) at 1 bar, 20°C and Δp = 2.000 Pa acc. DIN 25496 –    (inner tightness) Admissible leakage …

Pressure relief damper, type KL-E with control function The Pressure Relief Damper Type KL-E is a design variant provided with control function which, as soon as then opening pressure is exceeded, keeps nearly constant the pressure in the ductwork, independent of the range of volume flow. When the pressure in the ductwork reduces to its normal range …