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Century Industries, LLC

Century Valve, Ltd.

Peter B Hutton

Alan F Chou

Jeffrey T Lynch

James W Spahr

Edward R Coleman

Manifold for use with dual pressure sensor units

An instrument valve manifold 10, 210 interfaces between a flowline control manifold CM and one or more pressure transmitter units T1, T2. The instrument valve manifold includes a monolithic body 32,232 that defines a mating surface 34,234 having a low pressure port 52, 252 and a high pressure port 54, 254, a low pressure plenum 58, 258 and a high pressure plenum 60,260, and at least one equalizing valve pocket 96, 296 for receiving an equalizing valve 100, 300. Fluid passageways in the body 32, 232 extend from the low pressure input port to the low pressure plenum and from the high pressure input port to the high pressure plenum. The instrument valve manifold reduces the size and weight of components connected to the control manifold, reduces the moment arm of the combined weight of the instrument valve manifold and the transmitter on the control manifold, and distributes the weight substantially equally about the plane of symmetry 30 of the control manifold.

Instrument valve manifolds for use with pressure transmitters

Instrument manifolds for use with pressure transmitters

A valve manifold for interfacing between a flowline control manifold and first and second pressure sensor units, the manifold having a monolithic body defining a mating surface for mating with the process control manifold and an instrument face for mating with the first and second pressure sensor units, the body having a peripheral wall with a first portion thereof being on the opposite side of the instrument face with respect to the mating face, the first portion of the peripheral wall forming an equalizing valve pocket surface for high and low pressure equalizing valve pockets carrying high and low pressure equalizing valves, respectively. High and low pressure fluid passageways extend from the mating surface to the equalizing valve pockets. The high pressure fluid passageway communicates with a high pressure plenum in the instrument face while the low pressure fluid passageway communicates with a low pressure plenum formed in the instrument face. An equalizing fluid passageway interconnects the high pressure and low pressure equalizing valve pockets. A gauge pressure passageway is connected to the high pressure fluid passageway and is in open communication with a second high pressure plenum formed in the instrument face. A block valve selectively controls flow through the gauge pressure passageway.

A two-piece, modular valve manifold adapted to be positioned between a main flowline and a pressure sensor to control fluid flow from the main flowline to the sensor, the manifold comprising a first module that adapts to a pressure sensor, such as a differential pressure transmitter, and a second module that is connected to a source of process fluid, the second module containing a block valve system, the first module containing an equalizer valve system and a vent valve system, the modules being connected together whereby process fluid can be transferred through the first module to the second module and ultimately, to the pressure sensor.

Two-piece manifold

Manifold

A supply manifold (10) and a transmitter supporting block (11, 11a, 11b) are combined into a pressure transmitter supporting modular unit such that when maintenance or cleaning of the system is to be carried out, the pressure transmitter or transmitters can be removed together with the supporting block (11, 11a, 11b) to keep inlet section of the transmitter(s) protected from mechanical impacts or the like. The supporting block with the transmitter(s) can then be placed back after the servicing, rodding or the like of the system, without the need for time consuming realignment of the elements and without the danger of damaging the pressure transmitter as mentioned above. Three different embodiments of the supporting block (11, 11a, 11b) are described for use in the modular unit of the invention.

Valve manifold system

A valve manifold for use with a pressure sensing apparatus such as a differential pressure transmitter, the manifold being characterized by a simplified passageway system internally of the manifold and by reduced size relative to prior art manifolds, the manifold having valve chambers defining valve seats, each of the valve seats being located within a referenced prison defined by mounting holes having axes which are generally perpendicular to first and second, parallel faces of the manifold.

Multiple valve manifold for use with a pressure processing apparatus

A five valve manifold for use with a pressure sensing apparatus is disclosed. It has an integral body having a first face, a second face, parallel with the first face. A peripheral wall section, spans the distance between the first and second face sections. The distance is smaller than at least one of the width and the length of the second face section. A passage system within said body and includes a plurality of mutually intercommunicating passages extending from one said face to the other. A set of five valves operates selective opening and closing of the passages. The centers of the instrument outlets at one face are suited to new type of 'smart' pressure transmitters, while the inlet ports at the other correspond to the usual spacing used in the industry. The invention eliminates the use of a so-called parallel flange used by the manufacturers of pressure transmitters to accommodate the difference in the centers of connecting ports of the instrument from that previously used by the industry.

Five valve manifold for use with a pressure sensing apparatus

A plug valve is disclosed which has a radially outwardly directed projection at the end of the valve stem, the projection being received in a complementary cylindric chamber in the plug of the valve for easy exchange of the plug during maintenance of the valve. The plug is freely rotatable relative to the stem of the valve. In the preferred embodiment, the stem of the valve does not rotate during the opening or closing motion. The invention provides a simplified structure, improves reliability of the valve and the simplicity of exchange of the plug in maintenance.

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Calgary, Canada

Peter B Hutton