Fire Damper Types

Fire smoke dampers are similar to fire dampers in fire resistance rating and also prevent the spread of smoke inside the ducts.

Fire damper types. 14 x 3 4 sheet metal screws at the same spacing. The stack of blades in the fire damper frame is kept out of the air stream. Type a dampers are the easiest and fastest type to install and are mostly used in low pressure part of duct systems up to 2 w c. Aire technologies 05 series 3 hr.

A fire damper closes once the temperature of the duct becomes high enough to melt the fusible link which holds it open. They work to help stop the spread of flame through your air ducts. Up to 10 w c or high pressure 10 w c pressure ratings. A mechanical or intumescent device within a duct or ventilation opening that operates.

Please call for price. Fire dampers are devices designed to impede the spread of fire through walls floors and partitions. Applications where fans shut down. Fire dampers are passive fire protection products used in heating ventilation and air conditioning hvac ducts to prevent the spread of fire inside the ductwork through fire resistance rated walls and floors.

The dampers are to be installed square and free from twisting or racking. Home fire dampers duct fire dampers static type duct fire damper. Fire dampers are installed in fire walls fire barriers fire partitions and horizontal assemblies. Click thumbnail to view image.

Rated static fire dampers. The term fire damper is defined by approved document b fire safety volume 2 buildings other than dwellinghouses as a. Compared to an type a damper the total square inches. Type a b c.

Fire dampers are ul555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems designed to close upon the detection of heat. This installation instruction applies to fire dampers static dynamic curtain single and multi blade types mounted in the plane of an ul approved fire partition. When the damper or damper assembly exceeds either 48 in width or 60 in height the retaining angles should not be less than 1 1 2 x 1 1 2 x 1 8 thick and should be attached to the sleeve using 20 1 4 x 3 4 round head stove bolts at 8 on c. Static fire damper 3 hr ul rated.

When a rise in temperature occurs the fire damper. Fire damper designing buildings wiki share your construction industry knowledge. The dampers are designed for operation in the vertical or horizontal position with blades running horizontal. 1 long welds or no.