For rigid type duct connections the sleeve shall be a minimum of 16 gauge 1 5 for dampers up to 36 wide by 24 high 9 14x60 and a minimum of 14 gauge 1 9 for larger units.
Floor mounted fire damper.
Fire smoke dampers are similar to fire dampers in fire resistance rating and also prevent the spread of smoke inside the ducts.
If a fire damper is installed in a wall it will be in a vertical position.
Damper is designed to operate with blades running horizontally and must be installed with center line of damper frame within the wall or floor when they are in the closed position.
Ul fire resistance directory the damper must be installed with leading edge of closed blade within the partition.
Vertical dampers for static airflow systems do not have springs.
Use mount with arrow.
The standard location permits the damper to be installed outside the plane of the wall or floor.
Damper products serve a valuable role in air movement.
Standard installation the damper is mounted in the sleeve the sleeve damper assembly is mounted in the fire barrier and the assembly is held in position by retaining angles on both sides of the fire separation.
Listed clearance requirements are 1 8 per linear foot unless stated otherwise.
Sleeve is not required to be centered but can rest on the bottom of the opening.
They can accommodate airflow in either direction.
1 8 10 expansion joint per linear foot ii.
Fire damper sleeve clearance within wall floor opening i.
The retaining angles are fastened to the sleeve but not to the wall floor etc.
Dayton rectangular fire dampers these fire dampers are designed for use in duct systems or penetrations of fire rated barriers that have been designed to have pressurized airflow when the dampers are expected to cycle closed during fires.
Air handler round fire dampers.
Dampers a complete line of damper products for fire and smoke control in life safety systems and for airflow control in commercial hvac and industrial systems.
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 36 x 20 fire damper sleeve will have an opening of.
Wall depth 4 102 91 2 241 31 2 89 17 432 the drawings show the position of the damper mounted in the factory sleeve.
If a fire damper is installed in a floor it will be in a horizontal position.
Products cover a wide variety of applications ranging from life safety to maintaining the control of outside air.
