Dresser, Inc.

Gheorghe Dodan

Jeffrey Louis Johanning

Abdul Raoof Mohamed

Orie Woodman Van Doran

Jayesh K Shah

Kyle McKinley Bryan

Mark David Kaczmarek

Jonathan Clyde Whitten

James Alex Markert

Chad Eric Yates

Cyril Nicolas Vlassoff

Mikhail Anisimov

Alexandre Serra Cachinhasky

Wei Chen

A coating that is configured for use on parts of a control valve. The configurations may incorporate various material layers, preferably that form a layered structure on a base or substrate (for example, an Inconel body). In one implementation, the layered structure can be arranged as 'stacked' individual layers that exhibit different concentrations or ratios of materials, including by example tungsten carbide and nickel alloy. The concentration of tungsten carbide may increase from an innermost layer to an outer most layer. This feature can extend service life of the parts, particularly when in use with highly-erosive process fluids, like particle-entrained fluids commonly found in hydrocracking or refining operations. Manufacture of the layered structure on the parts may require use of additive manufacturing technology in order to deposit layers of material of varying composition and thickness on the unique fluted design contemplated herein.

Protecting valve parts from erosion

A valve control is configured for use with control valves and other flow controls. The valve control leverages a simplified structure to avoid problems with manufacture and reduce costs. This structure includes a support unit that compresses parts of a valve housing together. Inside of the valve housing, the structure incorporates diaphragms that cause a pair of balanced valves to move in response to changes in pressure of fluid in a conduit. For industrial application, the valve control finds use to maintain pressure of natural gas in pipelines downstream from a control valve.

Valve control assembly

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Saint Johns, FL, United States of America

Gheorghe Dodan