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Method and apparatus for accessing and aligning sealing discs

A technology for sealing discs, closing devices, applied in the direction of valve operation/release devices, valve devices, diaphragm valves, etc.

Active Publication Date: 2020-12-29
EMERSON PROCESS MANAGEMENT REGULATOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cage in the valve body typically mates with multiple components, causing assembly variability (e.g., tolerance stack-up and / or alignment issues, etc.)
Furthermore, the available components of a fluid control valve are typically only accessible via a single end or side of the fluid control valve

Method used

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  • Method and apparatus for accessing and aligning sealing discs
  • Method and apparatus for accessing and aligning sealing discs
  • Method and apparatus for accessing and aligning sealing discs

Examples

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Embodiment Construction

[0013] Many known fluid control valve arrangements include an actuator and a fluid valve. Typically, fluid valves have internal components (eg, sealing disc, valve stem, seat ring, etc.) that are only accessible from one side (eg, top or bottom) of the fluid valve. Furthermore, accessing the fluid valve requires removal of various components of the fluid valve to gain access to the trim components. In particular, the sealing discs that control the fluid flow characteristics of the fluid valves may require repair and / or replacement due to normal wear. Typically, fluid valves include multiple components used to align the sealing disc, thus creating alignment difficulties due to dimensional variations of the components (eg, tolerance stack-up). Also, the use of multiple alignment assemblies requires inventory and maintenance of a relatively large number of parts.

[0014] The exemplary diaphragm actuated fluid control valves described herein facilitate access to valve trim comp...

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PUM

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Abstract

A method and apparatus for accessing and aligning a sealing disk are disclosed. Exemplary devices include a cage for a fluid regulator, wherein the cage has a central bore, and a valve stem received by the central bore. The exemplary apparatus also includes a diaphragm coupled to the valve stem, wherein an integral protrusion of the cage forces a peripheral edge of the diaphragm against the valve body when the cage is coupled to the valve body. Removable part.

Description

technical field [0001] The present application relates generally to actuators and, more particularly, to methods and apparatus for accessing and aligning sealing disks. Background technique [0002] Fluid control valves are typically distributed throughout process control systems to control the flow and / or pressure of various fluids (eg, liquids, gases, etc.). A fluid control valve assembly typically includes a valve body, a cage located in the valve body, a valve stem, and an actuator (eg, a pneumatic actuator) for moving the valve stem, which moves the valve plug Or a flow control member is disposed within the valve to operate the fluid control valve. The cage in the valve body typically mates with multiple components, causing assembly variability (eg, tolerance stack-up and / or alignment issues, etc.). Furthermore, the available components of a fluid control valve are typically only accessible via a single end or side of the fluid control valve. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/32F16K31/126F16K27/02
CPCF16K1/00F16K1/32F16K31/1262G05D16/063F16K31/1264F16K27/02Y10T29/49407F16K7/12B23P15/001F16K27/0236
Inventor 林春G·G·克鲁辛格J·桑德斯T·阮
Owner EMERSON PROCESS MANAGEMENT REGULATOR TECH INC