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Fluid valve having coating containing gold and/or platinum

A fluid valve and coating technology, applied in multi-port valves, valve devices, valve details, etc., can solve the problem of high load of fluid valves, and achieve the effects of high service life, small wear and improved service life.

Pending Publication Date: 2019-09-13
AGILENT TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Particularly at high pressures a reliable fluid seal is required and the components of the fluid valve are highly loaded

Method used

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  • Fluid valve having coating containing gold and/or platinum
  • Fluid valve having coating containing gold and/or platinum
  • Fluid valve having coating containing gold and/or platinum

Examples

Experimental program
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Embodiment Construction

[0076] Before describing the exemplary embodiments with reference to the accompanying drawings, some basic considerations should be summarized on the basis of which the exemplary embodiments of the present invention are derived.

[0077] According to a first aspect of one embodiment of the invention, the surfaces of the valve parts, especially the stator arrangement or the rotor arrangement, especially at the interface between the co-acting valve parts, the bonding between the individual bodies of the valve parts Surfaces, fluid structures of valve components, etc.) are provided with a gold-containing and / or platinum-containing coating. This leads to lubrication at the contact surfaces (especially Au-Co lubrication in the case of hard gold) as well as balanceability, biocompatibility of fluidic structures, mechanical robustness of fluidic valves and reliability of individual elements of the valve components. Cohesiveness.

[0078] According to another aspect of an embodiment ...

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Abstract

The invention relates to a fluid valve (95) for a sample separation unit (10), wherein the fluid valve (95) has a first valve component (102) and a second valve component (104), the first valve component (102) and the second valve component (104) adjoin each other, are movable relative to each other, and are designed in such a way that, in at least one switching state, a controllable fluid channel(106) is formed between said components, and at least part of a surface of at least one of the first valve component (102) and the second valve component (104) is provided with a coating (110) containing gold and / or platinum.

Description

technical field [0001] The invention relates to a fluid valve, a sample separation device and a method for manufacturing a fluid valve. Background technique [0002] In HPLC the liquid (mobile phase) is typically mixed at very precisely controlled flow rates (for example in the range of microliters to milliliters per minute) and at high pressures (typically 20 to 1000 bar and higher, today up to 2000 bar) The compressibility of the liquid can be found in the high pressures in which the individual components of the sample liquid introduced into the mobile phase are separated from each other by moving through the so-called stationary phase (for example in a chromatographic column). Such an HPLC system is known, for example, from EP 0,309,596 B1 of the same applicant, Agilent Technologies Ltd. [0003] Such HPLC systems typically have one or more fluidic valves. Especially at high pressures a reliable fluid seal is required and the components of the fluid valve are highly str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/04F16K11/074F16K25/00G01N30/20
CPCF16K3/04F16K11/0743F16K25/005G01N30/20G01N2030/201
Inventor 托尼·齐格勒达利约·泽考托马斯·欧特曼
Owner AGILENT TECH INC