By Plant Engineering Staff October 31, 2008

The HBTR-451 bubble-tight damper meets requirements for zero leakage. The damper features a silicone blade seal and double gland axle seal factory-leakage tested to ensure bubble-tight performance up to 30-inch water gauge differential pressure. The designed applications include two-position shut-off applications including medical facilities and labs, food processing, military facilities, campuses, test labs, clean rooms and microelectronic manufacturing.