Dual chamber orifice fitting body
AssigneeDaniel Industries, Inc.
InventorThomas Henry Loga
Life of this patent
Estimating the term…
Abstract
A dual chamber orifice fitting, including a body with a lower chamber in fluid communication with a pipeline and a top with an upper chamber in fluid communication with the lower chamber. A valve assembly closes to hydraulically isolate the upper chamber from the lower chamber and opens to allow an orifice plate carrier to move between the chambers. When the orifice plate carrier is in the lower chamber is can be aligned with the flowbore of the pipeline. The orifice plate carrier can be removed from the fitting through the upper chamber. In the preferred embodiments, at least one of either the upper or lower chambers has a non-rectangular cross-section. The body and top may also have a curved outer surface to accommodate the non-rectangular cross-section of the interior chambers.
Claims26
A fitting comprising:
- a body portion having a lower chamber in fluid communication with a pipeline;
- a top portion connected to said body portion via an upper flange that is coupled to a lower flange disposed on said body portion;
- an upper chamber disposed within said top portion and in fluid communication with the lower chamber, wherein at least a portion of either the upper chamber or the lower chamber has a non-rectangular cross section, wherein the cross section is taken parallel to the upper and lower flanges;
- a valve adapted to isolate the upper chamber from the lower chamber;
- and
- a plate having an orifice, wherein said plate is selectably disposable in either the upper or lower chamber.
A dual chamber orifice fitting comprising:
- a body portion having a lower chamber in fluid communication with a pipeline;
- and
- a top portion having an upper chamber in fluid communication with the lower chamber,
- an upper flange disposed on said top portion and coupled to a lower flange disposed on said body portion;
- wherein at least a portion of either the upper chamber or the lower chamber has a cross-section with an inner radius that is variable relative to the center of the fitting, wherein the cross section is taken parallel to the upper and lower flanges.
A fitting comprising:
- a body portion having a lower chamber in fluid communication with a pipeline;
- a top portion connected to said body portion via an upper flange that is coupled to a lower flange disposed on said body portion;
- an upper chamber disposed within said top portion and in fluid communication with the lower chamber, wherein at least a portion of both the upper and lower chambers have non-rectangular cross sections, wherein the cross sections are taken parallel to the upper and lower flanges;
- a valve adapted to isolate the upper chamber from the lower chamber;
- and
- a plate having an orifice, wherein said plate is selectably disposable in either the upper or lower chamber.
Dependencies are inferred from the claim text.