Cylindrical throttle valve DZ

Cylindrical throttle valve DZ
The throttle valve or DZ throttle damper is a ventilation system component used to regulate the speed and airflow rate. The device allows balancing air resistance and adjusting the supply volume. Throttle dampers come in round and rectangular cross-sections. Throttle dampers for special facilities (e.g., bomb shelters) are made of thick sheet metal to provide enhanced protection against blast waves. A gland seal in the design is used to ensure gap sealing.

Overall and connection dimensions of the round throttle damper with gland seal DZ