7.5.2.12 IfcDamperTypeEnum
7.5.2.12.1 Semantic definition
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. |
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;