IfcDuctSilencerTypeEnum

BACnet MVD

#### IfcDuctSilencerTypeEnum

Natural language names

| Duct Silencer Type Enum
| Énumération des types de silencieux circulaire

##### Semantic definitions at the type

Type definition

Enumeration defining the typical types of duct silencers.

> HISTORY New enumeration in IFC2x2.

Enumeration definition

Constant | Description
--- | ---
FLATOVAL | Flat-oval shaped duct silencer type.
RECTANGULAR | Rectangular shaped duct silencer type.
ROUND | Round duct silencer type.
USERDEFINED | User-defined duct silencer type.
NOTDEFINED | Undefined duct silencer type.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcDuctSilencerTypeEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="flatoval"/>
<xs:enumeration value="rectangular"/>
<xs:enumeration value="round"/>
<xs:enumeration value="userdefined"/>
<xs:enumeration value="notdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcDuctSilencerTypeEnum = ENUMERATION OF (
FLATOVAL,
RECTANGULAR,
ROUND,
USERDEFINED,
NOTDEFINED);
END_TYPE;

EXPRESS-G diagram

`

References: IfcDuctSilencer IfcDuctSilencerType

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