Tube mounting for orifice meter
AssigneeGrove Valve and Regulator Company
InventorDavis A. Van Scoy
Life of this patent
Estimating the term…
Abstract
An orifice meter with a pair of parallel, flat steel body plates. Flow tubes of predetermined sizes are welded in mounting rings to be bolted to the opposing body plates with the inner ends of the tube extending into the body space in alignment with the orifice disc. Wide grooves around the tubes ensure communication of pressure tap ports through the tube with lateral pressure tap ducts through the body plates. Ducts through the upstream body plate from the groove to the body space and through the downstream plate from the body space to the exterior, enable one, by removal of a plug, to flush the bottom of the body space with upstream pressure.
Claims5
An orifice meter comprising:
- a housing with a pair of opposing body plates having aligned circular openings therethrough;
- and
- an orifice plate positioned in said housing in alignment with said openings;
- characterized in that it includes:
- an upstream flow tube of standard pipeline outer diameter and a selected inner diameter;
- a mounting plate welded around said upstream flow tube closely spaced from one end thereof;
- bolt means securing said mounting plate to one of said body plates with said one end of said flow tube extending into the circular openings therein;
- means for sealing between said upstream flow tube and said one body plate;
- means forming a tap port through said upstream flow tube at a predetermined distance from said orifice plate;
- pressure tap ducts bored laterally through said one body plate;
- and
- an enlarged recess in the outer wall of said flow tube including said tap port to ensure communication with said pressure tap duct.
Dependencies are inferred from the claim text.