FD-GB-31-A-AS-B-BS-R
Type : Fire Damper
Fire Rating : 31 Series: 3 hour
Construction : Galvanized Steel (GI)
Data
UL- 555 Test Ratings
Fire Rating : 3 hrs.
Standard Construction
Frame
18 gauge (1.2 mm) thick galvanized steel.
Blade
Curtain type blade made of 22 gauge (0.8 mm) thick galvanized steel.
Fusible Link
165°F.
Blade Ramp
16 gauge (1.5 mm) thick galvanized steel angle.
Spring
0.3 mm thick by 19 mm wide, stainless steel constant force spring.
Mounting
Vertical / Horizontal
Sleeve
Minimum 0.7 mm, single section is field or factory installed.
Multiple section is factory installed.
Sleeve thickness as per NFPA table 3-4.6.3.
Optional Fittings
Retaining Angles
1½” x 1½” x 16 gauge (40 x 40 x1.5) mm.
Limit Switches
For BMS open / close indication.
Transitions (R)
Neck adapter for round duct connections
Model: FD-GB-31-A/AS/B/BS/R UL 555 Damper meets the required standards of SMACNA, NFPA, IBC, BOCA, ICBO, UL.
