BETEC CAD.

Motorized Smoke Dampers - UL555S

MSD-GB 20 Galvanized Construction.
3V Single Skin Blades; Static / Dynamic;
Leakage Rating to Class-1, Class- 2, Class- 3 at 250°F.
Models: MSD-GB-21A ; MSD-GB-21AD.

MSD B-20 Series is a high performance UL 555S Classified, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static and vertically (with blades running horizontally) for dynamic operations, and is rated for airflow and leakage in either direction.
BETEC CAD Motorized smoke dampers are all UL 555S Classified and cover leakage Classes Class-1, Class-2, Class-3 at ambient and elevated temp. 250°F.

Send Sales Enquiry

Motorized Smoke Dampers - UL555S

MSD-GB 20 Galvanized Construction.
3V Single Skin Blades; Static / Dynamic;
Leakage Rating to Class-1, Class- 2, Class- 3 at 250°F.
Models: MSD-GB-21A ; MSD-GB-21AD.

MSD B-20 Series is a high performance UL 555S Classified, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static and vertically (with blades running horizontally) for dynamic operations, and is rated for airflow and leakage in either direction.
BETEC CAD Motorized smoke dampers are all UL 555S Classified and cover leakage Classes Class-1, Class-2, Class-3 at ambient and elevated temp. 250°F.

Send Sales Enquiry

Motorized Smoke Dampers - UL555S

MSD-GB 20 Galvanized Construction.
3V Single Skin Blades; Static / Dynamic;
Leakage Rating to Class-1, Class- 2, Class- 3 at 250°F.
Models: MSD-GB-21A ; MSD-GB-21AD.

MSD B-20 Series is a high performance UL 555S Classified, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static and vertically (with blades running horizontally) for dynamic operations, and is rated for airflow and leakage in either direction.
BETEC CAD Motorized smoke dampers are all UL 555S Classified and cover leakage Classes Class-1, Class-2, Class-3 at ambient and elevated temp. 250°F.

Send Sales Enquiry

Motorized Smoke Dampers - UL555S

MSD-GB 20 Galvanized Construction.
Aerofoil Blades; Static / Dynamic;
Leakage Rating to Class-2, Class- 3 at 250°F.
Models: MSD-GB-22A

MSD B-20 Series is a high performance UL 555S Classified, to ensure lowest resistance to airflow in HVAC systems with velocities to 2000 fpm (10.2 m/sec.) and 4” w.g. (1000Pa) may be installed vertically or horizontally for static and vertically (with blades running horizontally) for dynamic operations, and is rated for airflow and leakage in either direction.
BETEC CAD Motorized smoke dampers are all UL 555S Classified and cover leakage Class-3 at ambient and elevated temp. 250°F.

Send Sales Enquiry