Round Single Blade Galvanized Steel Damper

The model 70 true round damper is manufactured using 16 gauge galvanized steel. The frame is roll formed with two beads which adds rigidity to the frame and acts as a stop for the attached ductwork. This damper is designed to tightly close when the blade contacts the ¼” neoprene seal that is attahed to the damper frame.

Designed to operate at a maximum differential pressure of 4″ w.g.

Quick Specs

Description

Round Single Blade Galvanized Steel Damper Materials and Construction

FRAME: 16 GA. galvanized steel, 7½” deep.
BLADE: 16 GA. galvanized steel, reinforced for frames over 18” dia.
SHAFT: ½” dia. Cadmium plated steel stub.
BEARINGS: Flange Oilite Bronze.
SEALS: On frame, ¼” thick closed cell neoprene. Temperature range is -35°F to 180°F.
CONTROL ROD: Cadmium plated steel.
FINISH: Mill.

Literature

Round Single Blade Galvanized Steel Damper Submittal

Model:	70
Minimum Diameter:	4″ Diameter
Maximum Diameter:	36″ Diameter
Frame Depth:	7½”
Frame Material:	16 Ga. Galvanized Steel
Blade Type:	Single Blade
Blade Material:	16 Ga. Galvanized Steel Reinforced above 18″ Diameter
Blade Seals:	¼” Closed Cell Neoprene
Temperature Range:	-35°F to 180°F
Shaft:	½” Diameter Cadmium Plated Steel
Control Rod:	Cadmium Plated Steel
Bearings:	Flange Bronze Oilite
Finish:	Galvanized Steel