This enumeration defines the various types of damper
7.5.2.12.2 Type values
Type
Description
BACKDRAFTDAMPER
Damper used for purposes of manually balancing pressure differences. Commonly operated by mechanical adjustment.
BALANCINGDAMPER
Backdraft damper used to restrict the movement of air in one direction. Commonly operated by mechanical spring.
BLASTDAMPER
Blast damper used to prevent protect occupants and equipment against overpressures resultant of an explosion. Commonly operated by mechanical spring.
CONTROLDAMPER
Control damper used to modulate the flow of air by adjusting the position of the blades. Commonly operated by an actuator of a building automation system.
FIREDAMPER
Fire damper used to prevent the spread of fire for a specified duration. Commonly operated by fusable link that melts above a certain temperature.
FIRESMOKEDAMPER
Combination fire and smoke damper used to prevent the spread of fire and smoke. Commonly operated by a fusable link and a smoke detector.
FUMEHOODEXHAUST
Fume hood exhaust damper. Commonly operated by actuator.
GRAVITYDAMPER
Gravity damper closes from the force of gravity. Commonly operated by gravitational weight.
GRAVITYRELIEFDAMPER
Gravity-relief damper used to allow air to move upon a buildup of enough pressure to overcome the gravitational force exerted upon the damper blades. Commonly operated by gravitational weight.
RELIEFDAMPER
Relief damper used to allow air to move upon a buildup of a specified pressure differential. Commonly operated by mechanical spring.
SMOKEDAMPER
Smoke damper used to prevent the spread of smoke. Commonly operated by a smoke detector of a building automation system.
USERDEFINED
User-defined damper.
NOTDEFINED
Undefined damper.
Table 7.5.2.12.A
7.5.2.12.3 Formal representation
TYPE IfcDamperTypeEnum = ENUMERATION OF
(BACKDRAFTDAMPER
,BALANCINGDAMPER
,BLASTDAMPER
,CONTROLDAMPER
,FIREDAMPER
,FIRESMOKEDAMPER
,FUMEHOODEXHAUST
,GRAVITYDAMPER
,GRAVITYRELIEFDAMPER
,RELIEFDAMPER
,SMOKEDAMPER
,USERDEFINED
,NOTDEFINED);
END_TYPE;