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