Pigging ball valve
AssigneeArgus Machine Co. Ltd.
InventorsAllan Bazin, Randy Wiltermuth
Life of this patent
Estimating the term…
Abstract
A pigging ball valve with a housing and ball core supported for rotation within the housing. The ball core sits on a valve seat, which is supported by a seat carrier. The valve seat carrier has three distinct diameters that locate the seat in the housing and thus provides an anti-cocking feature. A seat insert has a pressure sealing surface and wiper lip on the outer diameter of the pressure sealing surface. An internal seat deflector ring is provided inside of the pressure sealing surface. The seat carrier is spring loaded.
Claims17
A pigging ball valve, comprising:
- a housing having an entry port for insertion of a pig into a pipeline or removal of a pig from a pipeline;
- an annular valve seat carrier supported within the housing and having three distinct diameters to locate the annular valve seat carrier within the housing;
- a ball core mounted for rotation within the housing between a first position for transferring a pig to and from the entry port and a second position for transferring the pig to and from the pipeline;
- and
- a valve seat held by the annular valve seat carrier and sealed against the ball core.
A pigging ball valve, comprising:
- a housing having an entry port for insertion of a pig into a pipeline and for removal of a pig from a pipeline;
- an annular valve seat carrier supported within the housing;
- a ball core mounted for rotation within the housing between a first position for transferring a pig to and from the entry port and a second position for transferring the pig to and from the pipeline;
- and
- a valve seat held by the annular valve seat carrier and sealed against the ball core, the valve seat having a pressure sealing surface and a wiper lip.
A pigging ball valve, comprising:
- a housing having an entry port for insertion of a pig into a pipeline and removal of a pig from a pipeline;
- an annular valve seat carrier supported within the housing;
- a ball core mounted for rotation within the housing between a first position for transferring a pig to and from the entry port and a second position for transferring the pig to and from the pipeline;
- and
- a valve seat held by the annular valve seat carrier and sealed against the ball core, the valve seat having a pressure sealing surface and a seat deflector ring.
Dependencies are inferred from the claim text.