7.5.8.83 PEnum_ValveMechanism

7.5.8.83.1 Semantic definition

Type	Description
`BALL`	Valve that has a ported ball that can be turned relative to the body seat ports
`BUTTERFLY`	Valve in which a streamlined disc pivots about a diametric axis
`CONFIGUREDGATE`	Screwdown valve in which the closing gate is shaped in a configured manner to have a more precise control of pressure and flow change across the valve
`GLAND`	Valve with a tapered seating, in which a rotatable plug is retained by means of a gland and gland packing
`GLOBE`	Screwdown valve that has a spherical body
`LUBRICATEDPLUG`	Plug valve in which a lubricant is injected under pressure between the plug face and the body
`NEEDLE`	Valve for regulating the flow in or from a pipe, in which a slender cone moves along the axis of flow to close against a fixed conical seat
`PARALLELSLIDE`	Screwdown valve that has a machined plate that slides in formed grooves to form a seal
`PLUG`	Plug valve in which a lubricant is injected under pressure between the plug face and the body
`WEDGEGATE`	Screwdown valve that has a wedge shaped plate fitting into tapered guides to form a seal
`OTHER`	required category not on scale
`NOTKNOWN`	Value is unkown
`UNSET`	Value has not been specified

Table A