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公开(公告)号：US12038351B2
公开(公告)日：2024-07-16
申请号：US17566762
申请日：2021-12-31
申请人： Dresser, LLC
摘要： A sensor configured to measure rate of flow of fugitive emissions on a flow control. The configurations may include devices that are sensitive to low flow or low pressure. These devices may include piezo-electric films or foams. These materials may deflect in response to flow of fluid along the outer surface of the reciprocating shaft. In one implementation, the embodiments can generate average leak rate over time and measure against regulation or specifications to ensure appropriate operation (e.g., leak suppression) of the flow control. Storing this data can provide a database of information that allows operators to benchmark performance of the flow control, for example, to correlate leaks to a certain date or time. This feature may, in turn, permit the operators to also correlate the device-specific performance to overall plant or network operations.
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公开(公告)号：US20240200687A1
公开(公告)日：2024-06-20
申请号：US18066760
申请日：2022-12-15
申请人： Dresser LLC
IPC分类号： F16K37/00
CPC分类号： F16K37/0016
摘要： An indication system includes the following features. A mechanism is within an enclosure. An indicator is mounted to an outer surface of the enclosure. A magnet couples the indicator to a component of the mechanism indicative of a state of the mechanism. The indicator displays a reading indicative of the state of the mechanism responsive to the magnet coupling.
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公开(公告)号：US11686404B2
公开(公告)日：2023-06-27
申请号：US17119650
申请日：2020-12-11
申请人： Dresser, LLC
CPC分类号： F16K27/067 , F16K5/0605 , F16K5/0621 , F16K5/0689 , F16K47/02 , F16K47/045 , F16K47/08
摘要： A component for a ball valve that is configured to reduce noise. The component or “shoe” can install into the valve body, for example, on a downstream side of a throttling ball. In one implementation, the embodiments comprise an annular ring with an inner surface and an outer surface. The inner surface is cupped to receive a portion of the throttling ball. The outer surface may have a stepped profile with portions of the annular ring that have concentrically-decreasing diameter. This stepped profile sits in a corresponding recess in the valve body. Welds can be used to secure the shoe in place in lieu of fasteners, like bolts or screws.
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公开(公告)号：US11598436B2
公开(公告)日：2023-03-07
申请号：US17230313
申请日：2021-04-14
申请人： Dresser, LLC
发明人： Andrew Crosby Roberts , Richard John Klimas, Jr. , Nicholas Ray Myers , Robert Stewart McKee , Dien Nguyen , Rick Cole Hunter
摘要： A safety valve is configured for use at temperatures at or above 760° C. (1400° F.). The safety valve includes a closure assembly that can create a self-energizing, metal-to-metal seal. In one implementation, this closure assembly includes a disc with an arcuate finger that circumscribes an axis of fluid flow through a seat. The arcuate finger may extend inwardly toward this axis and downwardly toward the seat. This geometry permits the finger to flex in response to pressure of fluid that impinges on the downstream side of the disc, such flexure causing a first sealing surface on the disc to more forcefully contact a second sealing surface on a seat.
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公开(公告)号：US11125350B2
公开(公告)日：2021-09-21
申请号：US16459084
申请日：2019-07-01
申请人： Dresser, LLC
发明人： Jeffrey Louis Johanning , Kyle McKinley Bryan , Gheorghe Dodan , Mark David Kaczmarek , James Alex Markert , Abdul Raoof Mohamed , Jayesh K Shah , Orie Woodman Van Doran , Jonathan Clyde Whitten
摘要： 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.
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公开(公告)号：US10920891B2
公开(公告)日：2021-02-16
申请号：US16049121
申请日：2018-07-30
申请人： Dresser, LLC
发明人： Chaur Yue Shyu
摘要： Valve assemblies with butterfly valves for use as a double isolation & bleed (DIB) valve and a double block & bleed (DBB) valve. The embodiments may have a twin-disc design with a non-separable, valve body having a central bore. A pair of butterfly valves may reside in the central bore, each having an annular seal and a rotatable disc that contacts the annular seal to prevent flow of fluid into space between the butterfly valves. Implementations of the embodiments configure the annular seal with a sloped contact surface at an angle to positively seal the rotatable discs in the preferred direction of incoming flow. In this way, the valves can always close in response to either uni-directional flow into one end of the central bore or bi-directional flow into both ends of the central bore, respectively or simultaneously.
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公开(公告)号：US20200347957A1
公开(公告)日：2020-11-05
申请号：US16735785
申请日：2020-01-07
申请人： Dresser, LLC
IPC分类号： F16K31/122 , G05D16/10 , F16K39/02 , F16K17/04
摘要： A pilot assembly is configured for use with various types of flow controls. These configurations include a manifold with an internal flow network that connects pilot valves and an adjustable orifice. The pilot valves may have a fixed and variable differential pressure. In one implementation, the manifold comprises a pair of separable blocks, one each that includes part of the internal flow network. This construction also permits the manifold to expand with, for example, and additional block for an additional pilot valve. This feature configures the manifold for use in working monitor systems or those systems that deploy multi-stage pressure regulation.
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公开(公告)号：US20200292098A1
公开(公告)日：2020-09-17
申请号：US16890713
申请日：2020-06-02
申请人： Dresser, LLC
发明人： Jeffrey Louis Johanning , Mark David Kaczmarek , Abdul Raoof Mohamed , Jayesh K. Shah , Casey Michael Stockbridge , Orie Woodman Van Doran
IPC分类号： F16K31/163 , F16K27/00 , F16K37/00 , F16K31/52 , F16K31/56
摘要： An actuator for use in a control valve assembly that has a structure amenable to manufacture. The actuator may comprise a housing comprising a plurality of walls secured to one another with fasteners to form an interior cavity, a torque hub disposed in the interior cavity, the torque hub comprising a torque body and a torque arm that are releasably engaged with one another via fasteners, each of the torque body and the torque arm having interfacing geometry that defines surfaces that engage with opposing surfaces on the other; and a load generator coupled with the torque hub.
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公开(公告)号：US20190226596A1
公开(公告)日：2019-07-25
申请号：US16369906
申请日：2019-03-29
申请人： Dresser, LLC
摘要： A gap control device that works with a plug on a valve assembly for use in high-temperature applications. The plug may include two parts and a compressible seal that, when compressed, engages with an adjacent wall of a cylinder or “cage” typical of a trim assembly. In one embodiment, the gap control device forms a hard stop that expands in response to high temperatures. This feature prevents excess over-travel between the two parts of the plug in the high-temperature applications so as to limit stress and wear on the compressible seal.
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