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Diaphragm-sealed valve with improved actuator design

A diaphragm and actuation system technology, applied to diaphragm valves, diaphragms, instruments, etc., can solve the problems of high cost and long assembly process

Active Publication Date: 2015-01-07
APN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Precise assembly of components requires skilled assembly technicians and makes assembly process lengthy and costly

Method used

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  • Diaphragm-sealed valve with improved actuator design
  • Diaphragm-sealed valve with improved actuator design
  • Diaphragm-sealed valve with improved actuator design

Examples

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Embodiment Construction

[0050] In the following description, the same reference numerals denote the same elements. The embodiments, geometric configurations, mentioned materials and / or dimensions shown in the figures or described in this specification are preferred embodiments given for illustrative purposes only.

[0051] Additionally, while embodiments of valves and valve assemblies and their corresponding parts are constructed from the particular geometric configurations described and shown herein, not all of these components and geometries are required and thus are not to be construed in a limiting sense. It will be understood and will be apparent to those skilled in the art that other suitable components and co-operation therebetween and other suitable geometric configurations may be used for the valve and valve assembly, as briefly described herein and as may be readily determined by those skilled in the art. It is inferred from this. In addition, it will be appreciated that positional specifi...

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Abstract

A valve comprising a valve cap, a valve body and a diaphragm positioned between the valve cap and the valve body. The valve further has a plurality of plungers movable, by an actuation system, between a closed position where the plunger engages the diaphragm, and an open position where the plunger is disengaged from the diaphragm. Each plunger comprises a base section connected to the actuation system and having a head projecting away therefrom; a top section extending between the base section and the diaphragm, the top section having a foot in contact with the head of the base section; and a biasing mechanism biasing the top section away from the diaphragm when the plunger is in the open position. Tangential contact points may also be provided between components of the actuation and the biasing mechanism for preventing a misalignment of the actuation system within the valve body.

Description

technical field [0001] The present invention relates generally to fluid analysis systems, and more particularly, to a diaphragm seal valve having an improved plunger, actuation system, and / or biasing mechanism, and a valve assembly including the same. Background technique [0002] It is well known to those skilled in the art that chromatography systems rely on the use of valves to allow reproducible sample introduction and various column switching schemes. [0003] Diaphragm valves of various designs are known in the field of chromatography applications. Such diaphragm valves have been used in many commercially available gas chromatographs. The diaphragm valve is more easily integrated into the gas chromatograph because of its physical size and because the actuator is embedded in the valve itself. These characteristics make diaphragm valves attractive to gas chromatograph manufacturers. [0004] For example, International Application No. PCT / CA2008 / 002138 filed by the app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/10F16K11/20F16K7/16G01N30/24
CPCF16K11/20G01N2030/328F16K7/16Y10T137/87716F16K11/02F16K31/1225G01N30/20G01N2030/205
Inventor 伊夫·加马什
Owner APN INC
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