Rated static fire dampers.
Fire damper types.
Aire technologies 05 series 3 hr.
A mechanical or intumescent device within a duct or ventilation opening that operates.
1 long welds or no.
Fire dampers are devices designed to impede the spread of fire through walls floors and partitions.
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Fire dampers are installed in fire walls fire barriers fire partitions and horizontal assemblies.
The dampers are designed for operation in the vertical or horizontal position with blades running horizontal.
Used when airflow or velocity in the duct is a concern.
The dampers are to be installed square and free from twisting or racking.
The term fire damper is defined by approved document b fire safety volume 2 buildings other than dwellinghouses as a.
Type c dampers can be ordered with low pressure less than 3 w c medium high pressure from 3 w c.
They work to help stop the spread of flame through your air ducts.
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.
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.
14 x 3 4 sheet metal screws at the same spacing.
When a rise in temperature occurs the fire damper.
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.
A fire damper closes once the temperature of the duct becomes high enough to melt the fusible link which holds it open.
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.
The type c fire damper is generally used where velocities are medium to high and free area is a consideration.
Applications where fans shut down.
The stack of blades in the fire damper frame is kept out of the air stream.
Fire smoke dampers are similar to fire dampers in fire resistance rating and also prevent the spread of smoke inside the ducts.
Fire damper designing buildings wiki share your construction industry knowledge.
Home fire dampers duct fire dampers static type duct fire damper.
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.
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Type a b c.
