FD-GB-20-A-AS-B-BS-R

UL- 555 Test Ratings

Fire Rating : 1½ 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

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 x 1.5) mm.

Limit Switches

For BMS open / close indication.

Transitions (R)

Neck adapter for round duct connections.

Optional Construction (UL Certification N/A)

Frame : Stainless Steel 18 gauge (304/316L)
Blade : Stainless Steel 22 gauge (304/316L)