ISO 9001 : 2008

CERTIFIED

QFD-GSB-F-D-20-A-R

Type : Quadrant Fire Damper With Melting Fuse
Fire Rating : 20 Series-1½ hour.
Blade Type : 3V Single Skin; A : Parallel Operation
Construction : Galvanized Steel (GI), Stainless Steel (SS)

 

QFD B-F-20 Series is a high performance UL 555 Classified fire damper with 1½hr. fire rating, operated manually with quadrant, installed horizontally blades running horizontally) and is rated for airflow in either direction.

UL-555 Test Ratings

Fire Rating : 1½ hrs.
Max Velocity : 2000 fpm
Max Operating Pressure: 4 in. w.g (1000 pa)

Standard Construction

Frame

16 gauge (1.4 mm – 1.7 mm) thick galvanized steel.

Blades

Parallel operated 3 ‘V’ type blade made of 16 gauge (1.4 mm – 1.7 mm) thick galvanized steel.

Jamb Seals

Stainless steel.

Jack Shaft

12 mm diameter stainless steel shaft.

Spring

Mild steel Spring ( 30lb).

Fusible Link

165°F

Operator

Manual quadrant.

Sleeve

Minimum 0.9 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).

Blade Seals

Silicon rubber blade seals.

Indicator

Externally mounted open, close visible Indicator.

Transitions (R)

Neck adapter for round duct connections.

 

Model : QFD-GB-F-D-20 A/R UL555 Damper meets the required standards of SMACNA, NFPA, IBC, BOCA, ICBO, UL.

 

Note : * Standard Fusible link temperature is 165°F
Above 165°F available upon customer request.

Request for Quotation

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