Starduct Pressure Relief Damper , Model : SPRD(S) frame is made of extruđe aluminum (A6063-T5), thickness ~ 1.2mm.
Damper blade made of 1.0mm aluminum plate
Operating by couterweight according to required pressure levels
Powder coating finish in RAL9010 standard colors or optional color as requested with Jotun paint or equivalent, service life over 5 years
Production standards : Complying with AMCA 500D; Test report No.10131/VLXD-TBMT, Test standard BS-EN 1751:1999
Scope of Test : Leakage of damper frame - Class A, leakage of damper blade -Class 1