A rotary valve that has a quarter turn action in which the closure member is a cylindrical or tapered plug which operates by rotating on its axis and sealing against a downstream seat (from http://data.posccaesar.org/rdl/RDS421109).

Table 133 – PlugValveType Definition

Attribute	Value
BrowseName	PlugValveType
IsAbstract	False
References	NodeClass	BrowseName	DataType	TypeDefinition	Other
Subtype of ShutOffValveType