Control dampers
Used to control airflow within a duct system. Roll-formed galvanized steel hat section with staked corners and integral bracing. Bronze oilite bearings press-fit into frame.
OBD/PBD
OPB/PBD Standard
8˝ x 8˝ to 48˝ x 48˝
Multi-section
Unlimited. Supplied with jackshafting. Consult factory.
Options
6˝ Shaft / 9˝ Shaft
Manual Hand Quadrant
May be made to accommodate higher than the recommended 2.5˝w.c. static pressure
Multi-section
Unlimited. Supplied with jackshafting. Consult factory.
Options
6˝ Shaft / 9˝ Shaft
Manual Hand Quadrant
May be made to accommodate higher than the recommended 2.5˝w.c. static pressure
OPB/PBD Low Leakage
8˝ x 8˝ to 48˝ x 48˝
Multi-section unlimited. Supplied with jackshafting. Consult factory.
Extruded vinyl seals (50F – 250F).
Tested to AMCA Standard 500.
Leakage Cfm/Sq.Ft.:
1.0˝ w.g./3.5
2.5˝ w.g./5.0
4.0˝ w.g./7.0
Multi-section unlimited. Supplied with jackshafting. Consult factory.
Extruded vinyl seals (50F – 250F).
Tested to AMCA Standard 500.
Leakage Cfm/Sq.Ft.:
1.0˝ w.g./3.5
2.5˝ w.g./5.0
4.0˝ w.g./7.0
CERTIFICATIONS
DuroDyne Fire Dampers are UL 555 approved and approved by the Standards and Appeals for use in New York City. Cal. 291-80-SA. Meets National Fire Protection Association – NFPA 90A.
