7.5.2.32 IfcValveTypeEnum
7.5.2.32.1 Semantic definition
The IfcValveTypeEnum defines the range of different types of valve that can be specified. These are typically used in conjunction with Pset_ValveTypeCommon, which contains common properties for all valve types.
7.5.2.32.2 Type values
| Type | Description |
|---|---|
AIRRELEASE
|
Valve used to release air from a pipe or fitting. |
ANTIVACUUM
|
Valve that opens to admit air if the pressure falls below atmospheric pressure. |
CHANGEOVER
|
Valve that enables flow to be switched between pipelines (3 or 4 port). |
CHECK
|
Valve that permits water to flow in one direction only and is enclosed when there is no flow (2 port). |
COMMISSIONING
|
Valve used to facilitate commissioning of a system (2 port). |
DIVERTING
|
Valve that enables flow to be diverted from one branch of a pipeline to another (3 port). |
DOUBLECHECK
|
An assembly that incorporates two valves used to prevent backflow. |
DOUBLEREGULATING
|
Valve used to facilitate regulation of fluid flow in a system. |
DRAWOFFCOCK
|
A valve used to remove fluid from a piping system. |
FAUCET
|
Faucet valve typically used as a flow discharge. |
FLUSHING
|
Valve that flushes a predetermined quantity of water to cleanse a toilet, urinal, etc. |
GASCOCK
|
Valve that is used for controlling the flow of gas. |
GASTAP
|
Gas tap typically used for venting or discharging gas from a system. |
ISOLATING
|
Valve that closes off flow in a pipeline. |
MIXING
|
Valve that enables flow from two branches of a pipeline to be mixed together (3 port). |
PRESSUREREDUCING
|
Valve that reduces the pressure of a fluid immediately downstream of its position in a pipeline to a preselected value or by a predetermined ratio. |
PRESSURERELIEF
|
Spring or weight loaded valve that automatically discharges to a safe place fluid that has built up to excessive pressure in pipes or fittings. |
REGULATING
|
Valve used to facilitate regulation of fluid flow in a system. |
SAFETYCUTOFF
|
Valve that closes under the action of a safety mechanism such as a drop weight, solenoid etc. |
STEAMTRAP
|
Valve that restricts flow of steam while allowing condensate to pass through. |
STOPCOCK
|
An isolating valve used on a domestic water service. |
USERDEFINED
|
User-defined valve type. |
NOTDEFINED
|
Undefined valve type. |
7.5.2.32.3 Formal representation
TYPE IfcValveTypeEnum = ENUMERATION OF
(AIRRELEASE
,ANTIVACUUM
,CHANGEOVER
,CHECK
,COMMISSIONING
,DIVERTING
,DOUBLECHECK
,DOUBLEREGULATING
,DRAWOFFCOCK
,FAUCET
,FLUSHING
,GASCOCK
,GASTAP
,ISOLATING
,MIXING
,PRESSUREREDUCING
,PRESSURERELIEF
,REGULATING
,SAFETYCUTOFF
,STEAMTRAP
,STOPCOCK
,USERDEFINED
,NOTDEFINED);
END_TYPE;