Emerson Process Management Regulator Technologies, Inc.

Tescom Corporation

Justin Lane Masias

Tung Kim Nguyen

James Chester Hawkins

Douglas James Scheffler

David Blair Davis

James Curtis Bagby

Roy Ronald Pelfrey

Eric J Burgett

Guolei Fan

David O Plummer

Ruben Longoria

David S Scheffert

Andrew Da Costa

Paul Richard Anderson

Yawei Xiao

Bret M Kirchner

Joshua Logan Tecson

William Kevin Burke

Steven Landry Peek

Keltan Travis Forrest

Jeffrey Campbell Masteller

Alexander John Ferguson

Pressure regulators with adjustable boost bodies are described herein. An example pressure regulator includes a valve body; a seat in the fluid passageway; an actuator casing coupled to the valve body; and a plug assembly including: a stem; a plug coupled to the stem; a stem guide disposed in the channel of the actuator casing; a boost body on the second side of the stem guide; and a tube extending through the boost body, the tube and the boost body forming a unitary structure to prevent movement of the tube relative to the boost body, the tube having a first end and a second end, the second end disposed in a downstream location relative to the seat, wherein the boost body is rotatable with respect to the stem guide to position the tube in at least one other orientation relative to the actuator casing.

Pressure regulators with adjustable boost bodies

Flame arrestors and methods of making flame arrestors are described herein. An example flame arrestor includes a cylindrical body. The body includes a first end and a second end opposite the first end. The first end of the body has an end surface. The body also includes a recess formed in the end surface of the first end. The recess is defined by a recessed surface extending inward from the end surface toward the second end. The body further includes a set of channels formed through the body between the first and second ends. The channels extend through the recessed surface.

Flame arrestors and methods of making flame arrestors

Valve handles and dual-valve assemblies having handles are disclosed herein. An example dual-valve assembly includes a first valve having a first shaft. The first valve has a plate with a notch. The dual-valve assembly also includes a second valve having a second shaft. The dual-valve assembly further includes a handle coupled to the first and second shafts, such that when the handle is rotated, the first and second shafts are rotated simultaneously. The handle includes a body and a flexible arm coupled to and extending from the body. The flexible arm has a lock edge sized to fit within the notch to limit rotation of the handle relative to the first and second valves.

Valve handles and dual-valve assemblies having valve handles

A control system having a first pressure regulator, a downstream fluid control device, first pilot, and second pilot. The first pressure regulator has a fluid inlet, fluid outlet, and actuator assembly with a cavity divided into a first chamber and a second chamber. The downstream fluid control device has a second fluid inlet and a second fluid outlet. The first pilot has a first setpoint and the second pilot has a second setpoint, less than the first setpoint. The first and second pilots fluidly couple the second chamber to the second fluid outlet in a first mode of operation, isolate the second chamber from the second fluid outlet in a second mode of operation, and fluidly couple the second chamber to the fluid inlet in a third mode of operation.

Adjustable deadband control system

An adjustable cage assembly for a flow control device can include a first cage body and a second cage body. The first cage body can be rotationally fixed relative to the second cage body at a plurality of alignments to provide a flow opening of variable size for adjustable control of fluid flow areas through the adjustable cage assembly.

Adjustable cage assembly for flow control devices

Example noise attenuators for use with process control devices are described herein. An example apparatus includes a first plate and a second plate disposed in a fluid passageway of a noise attenuator. The second plate is spaced apart from the first plate. The example apparatus also includes a first support rod extending along a central axis of the fluid passageway. The first support rod is coupled to the first plate and to the second plate. The example apparatus further includes a second support rod extending along an axis parallel to and offset from the central axis. The second support rod is coupled to the first plate and the second plate.

Noise attenuators for use with process control devices

A control system having a pressure regulator, first pilot, and second pilot. The pressure regulator has a fluid inlet, fluid outlet, and actuator assembly with a cavity divided into a first chamber in fluid communication with the fluid outlet and a second chamber. The first pilot has a first setpoint and the second pilot has a second setpoint, less than the first setpoint. The first and second pilots fluidly couple the second chamber to the fluid outlet and isolate the second chamber from the fluid inlet in a first mode of operation, isolate the second chamber from the fluid outlet and fluid inlet in a second mode of operation, and fluidly couple the second chamber to the fluid inlet in a third mode of operation.

Circumferentially-sectioned valve cages are disclosed. An example apparatus comprises a plurality of cage sections collectively configured to be removably coupled together to form a valve cage having a circumference and a plurality of joints. The joints correspond in number to the cage sections and are spaced apart from one another about the circumference. Respective ones of the joints are defined by neighboring ones of the cage sections.

Circumferentially-sectioned valve cages

Control systems include various combinations of pressure regulators, pilots, and pressure stabilizers to provide systems with adjustable deadbands for over pressure protection, adjustable deadbands for under pressure protection, adjustable deadbands for both over pressure and under pressure protection, pressure assisted closure for over pressure protection, pressure assisted closure for under pressure protection, pressure assisted closure for both over pressure and under pressure protection, or spring assisted closure for over pressure and under pressure protection.

Methods and apparatus to control the actuation of regulators including a loading chamber are disclosed. An example apparatus includes a first pneumatic regulator including a loading chamber, the first pneumatic regulator to flow fluid toward a downstream process; a second pneumatic regulator coupled between the loading chamber and the downstream process, the second pneumatic regulator to control an actuation of the first pneumatic regulator during normal operation based on a pressure difference between a first pressure downstream of the first pneumatic regulator and a second pressure within the loading chamber; and a valve coupled between the loading chamber and the downstream process, the valve to control the actuation of the first pneumatic regulator during a shut-down event.

Methods and apparatus to control the actuation of regulators including a loading chamber

A system for providing a force on a main valve member includes a first sensing element adapted to couple to a portion of the main valve member. A first loading element may be directly or indirectly coupled to the first sensing element such that the first loading element provides a first force on the first sensing element. The first loading element is adapted to transfer the first force to the first sensing element and the main valve member. The system also includes a second sensing element to the first sensing element. A second loading element is coupled to the second sensing element and the first sensing element. The second loading element is adapted to provide a second force on the second sensing element to transfer the second force to the main valve member.

Fluid regulators and associated actuators

A fluid regulating device includes a regulator valve having an inlet, an outlet, and a valve port disposed between the inlet and the outlet. An actuator is coupled to the regulator valve and includes a valve disc that displaces between a closed position and an open position. The device also includes an overpressure protection device adapted to stop flow from the inlet to the outlet when pressure in a control cavity reaches a predetermined level. The overpressure protection device includes a sensing tube having a first end in fluid communication with the control cavity and a second end in fluid communication with the outlet. The sensing tube has a first portion extending parallel to the flow axis. One or more apertures are disposed in the sensing tube adjacent to the second end, and each of the apertures has a centerline that is perpendicular to the flow axis.

Dynamic pressure registration device for internally registered actuators and overpressure protection devices

Noise attenuation apparatus for pressure regulators are disclosed. An example apparatus includes a first noise attenuator disposed at a first position in a fluid passageway of a pressure regulator and a second noise attenuator disposed at a second position in the fluid passageway. The second position is spaced apart from the first position along the fluid passageway. The example apparatus also includes fasteners extending between the first noise attenuator and the second noise attenuator to position the first noise attenuator at the first position and the second noise attenuator at the second position. The fasteners are to couple to peripheral portions of the noise attenuators.

Growing community of inventors

McKinney, TX, United States of America

Justin Lane Masias