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Field removable bonnet assemblies for use with valves

A bonnet assembly, removal technology, applied in the direction of the device for pressure relief on the sealing surface, lift valve, valve details, etc., can solve the problem of fluid outflow, etc.

Inactive Publication Date: 2016-09-28
EMERSON PROCESS MANAGEMENT REGULATOR TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, if a hermetic seal no longer exists between the shaft and the valve packing, the internal valve may become inoperable and / or a significant amount of fluid may escape through the bonnet assembly until the internal valve is repaired and / or replaced

Method used

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  • Field removable bonnet assemblies for use with valves
  • Field removable bonnet assemblies for use with valves
  • Field removable bonnet assemblies for use with valves

Examples

Experimental program
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Embodiment Construction

[0015] Some examples are shown in the figures above and described in detail below. In describing these examples, like or identical reference numerals are used to identify common or similar elements. The figures are not necessarily to scale and certain features of the figures and certain views may be shown exaggerated in scale or in schematic illustration for clarity and / or conciseness. Additionally, several examples are described throughout the specification. Any feature in any example may be used in addition to, in place of, or in combination with other features in other examples.

[0016] The exemplary field-removable bonnet assembly described herein advantageously enables a technician to externally adjust the force exerted by the valve packing on the shaft of the inner valve to substantially prevent fluid flow from the inner valve to the environment, eliminating Problems associated with known internal valve bonnet assemblies are addressed. In particular, the examples des...

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PUM

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Abstract

Field removable bonnet assemblies for use with valves are described herein. An example field removable bonnet assembly for use with internal valves includes a body that is to be removably coupled to the internal valve. The body defines a bore that is to receive a valve packing. Additionally, the field removable bonnet assembly includes a shaft having a cam assembly that is to rotatably engage a stem of the internal valve. The shaft is rotatably coupled to the body and the shaft is at least partially positioned within the bore. Further, the field removable bonnet assembly includes a removable adjuster that is externally accessible to enable an adjustment of the removable adjuster relative to the body to change a force exerted by the valve packing on the shaft. The removable adjuster is field removable to replace or repair the valve packing.

Description

[0001] This application is a divisional application, the filing date of the original application is August 21, 2009, the application number is 200980140196.1, and the title of the invention is "Field-removable bonnet assembly for use with a valve". technical field [0002] The present invention relates generally to field removable bonnet assemblies and, more particularly, to field removable bonnet assemblies for use with valves. Background technique [0003] Internal valves are used in a variety of commercial and industrial applications to control the flow of fluid between a fluid storage tank and another container, hose, pipe, or the like. Typically, an internal valve is provided with a bonnet assembly that includes a shaft coupled to a cam that rotatably engages a valve stem to open and close the internal valve. [0004] The bonnet assembly of known internal valves includes a spring that applies a force to the valve packing for urging the valve packing toward a portion of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K41/04F16K39/02
CPCF16K39/02F16K41/04F16K1/126F16K39/024F16K41/043
Inventor 林春M·W·哈纽萨R·R·佩尔弗雷E·A·米勒
Owner EMERSON PROCESS MANAGEMENT REGULATOR TECH INC