IfcDamperTypeEnum

Semantic definitions at the type

Type definition

This enumeration defines the various types of damper

HISTORY New enumeration in IFC2.0.

Enumeration definition

Constant	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 preven 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.

Formal representations

XML Specification

 <xs:simpleType name="IfcDamperTypeEnum">

  <xs:restriction base="xs:string">

   <xs:enumeration value="backdraftdamper"/>

   <xs:enumeration value="balancingdamper"/>

   <xs:enumeration value="blastdamper"/>

   <xs:enumeration value="controldamper"/>

   <xs:enumeration value="firedamper"/>

   <xs:enumeration value="firesmokedamper"/>

   <xs:enumeration value="fumehoodexhaust"/>

   <xs:enumeration value="gravitydamper"/>

   <xs:enumeration value="gravityreliefdamper"/>

   <xs:enumeration value="reliefdamper"/>

   <xs:enumeration value="smokedamper"/>

   <xs:enumeration value="userdefined"/>

   <xs:enumeration value="notdefined"/>

  </xs:restriction>

 </xs:simpleType>

EXPRESS Specification


TYPE IfcDamperTypeEnum = ENUMERATION OF (

 BACKDRAFTDAMPER, 
 BALANCINGDAMPER, 
 BLASTDAMPER, 
 CONTROLDAMPER, 
 FIREDAMPER, 
 FIRESMOKEDAMPER, 
 FUMEHOODEXHAUST, 
 GRAVITYDAMPER, 
 GRAVITYRELIEFDAMPER, 
 RELIEFDAMPER, 
 SMOKEDAMPER, 
 USERDEFINED, 
 NOTDEFINED);
END_TYPE;


 EXPRESS-G diagram

	Damper Type Enum
	Énumération des types de détecteur d'incendie