The ValveType is the representation of a valve and extends its supertype by specific Nodes. Valves control the flow and passage of fluids through a piping network. It is illustrated in Figure 31 and formally defined in Table 42.

Figure 31 – ValveType Illustration

Table 42 – ValveType Definition

Attribute	Value
BrowseName	ValveType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the CASComponentType defined in 7.7, i.e. inheriting the InstanceDeclarations of that Node.
The following nodes override nodes added by the CASComponentType
0:HasComponent	Object	Design		ValveDesignType	O
0:HasComponent	Object	2:Operational		ValveOperationalType	O

When instantiating this ObjectType the Identification Object shall use one of the concrete subtypes of the MachineryItemIdentificationType, either MachineIdentificationType or MachineryComponentIdentificationType, depending on the concrete usage of this Component. The ModellingRule of the Property DeviceClass remains as mandatory and its Value Attribute shall match the value stated in Table 9.