English version machine-translated from the Vietnamese original — under review.
WEAKNESSES OF CURRENT TENSION-SPRING FUSIBLE-LINK DAMPERS: 1- The tension spring, installed inside the damper and kept in its working (tensioned) state, is prone to corrosion and loss of function, and is difficult to inspect, maintain and replace. 2- The fusible link is hard to access for replacement, especially on EI dampers whose blade is a single large, heavy, closed panel. 3- It is impossible to check whether the damper is closed or open.
Starduct's upcoming spring-loaded EI damper with thermal fusible link. The product has been filed for an INVENTION patent by Star Asia (Ngôi Sao Châu Á). (Application No.: 1-2022-03810 SC. Patent classification F16K37/00;F16K 17/38) and will solve all of the problems above!
