Patent ID: 6079443
Filing Date: 2000-06-27
Classification: G01L,Y10T

Abstract:
An instrument valve manifold for interfacing between a flowline control manifold and first and second pressure sensor units, said flowline control manifold including a high pressure line and a low pressure line controlled by a respective high pressure control valve and low pressure control valve, the instrument valve manifold comprising:a monolithic body, said body defining a mating surface for mating with said flowline control manifold, said mating face including a low pressure input port in fluid communication with said low pressure line and a high pressure input port in fluid communication with said high pressure line, a low pressure plenum and a high pressure plenum formed in an instrument face for cooperation with said first pressure sensor unit, a second high pressure plenum formed in said instrument face for cooperation with said second pressure sensor unit, said body further including an equalizing valve pocket surface spaced between said mating face and said instrument face;a low pressure fluid passageway in said body extending from said low pressure input port in said mating surface to said low pressure plenum;a high pressure fluid passageway in said body extending from said high pressure input port in said mating surface to said high pressure plenum;a low pressure equalizing valve pocket and a high pressure equalizing valve pocket each formed in said equalizing valve pocket surface and in fluid communication with the low pressure fluid passageway and high pressure fluid passageway, respectively;an equalizing fluid passageway interconnecting said high pressure equalizing valve pocket and said low pressure equalizing valve pocket;an equalizing valve fitted to one of said low pressure equalizing valve pocket and high pressure equalizing valve pocket for controlling fluid flow along said the equalizing fluid passageway;a gauge pressure passageway in said body connected to said high pressure fluid passageway, said gauge pressure passageway being in fluid communication with said second high pressure plenum;a block valve pocket intersecting said gauge pressure passageway between said high pressure fluid passageway and second high pressure plenum; anda block valve fitted to said block valve pocket for controlling flow along said gauge pressure passageway.