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Diaphragm valve applicable to high-temperature and low-temperature environments

A diaphragm valve, high and low temperature technology, applied in the direction of diaphragm valve, diaphragm, valve device, etc., can solve the problems of poor sealing reliability, high temperature resistance, poor low temperature performance, etc., and achieve the effect of improving the structure

Inactive Publication Date: 2017-02-01
DALIAN XINGANG HYDRAULIC PIPE FITTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional diaphragm valve, the diaphragm and the valve body are sealed by sealing materials. Most of the sealing materials use industrial sealant and fluorine rubber, etc., which have poor sealing reliability and poor high temperature and low temperature resistance.

Method used

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  • Diaphragm valve applicable to high-temperature and low-temperature environments

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Embodiment Construction

[0008] The structure of the diaphragm valve suitable for high and low temperature environment of the present invention is as follows: figure 1 As shown, it includes an upper valve body 3 and a lower valve body 5, the upper valve body 3 is provided with a valve stem 1, the lower part of the lower valve body 5 is provided with a fluid inlet 6 and a fluid outlet 7, and the valve plate 2 (diaphragm) is welded to the lower valve body 5.

[0009] In the invention, the diaphragm and the valve body are welded together, and a special metal material is used for brazing and sealing, so that the sealing type and reliability of the valve are significantly improved, and the temperature range of the operating environment can also be greatly improved.

[0010] The present invention has been described by means of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spi...

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Abstract

The invention provides a diaphragm valve applicable to high-temperature and low-temperature environments. The diaphragm valve comprises an upper valve body and a lower valve body, wherein the upper valve body is internally provided with a valve rod; a fluid inlet and a fluid outlet are formed in the lower part of the lower valve body; a valve plate is welded on the lower valve body. According to the diaphragm valve applicable to the high-temperature and low-temperature environments, provided by the invention, a diaphragm and the valve bodies are brazed and sealed through adopting a metal material and the structure of the valve is improved; the sealing performance and high-temperature and low-temperature resisting performance of the valve are improved.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a diaphragm valve. Background technique [0002] In the traditional diaphragm valve, the diaphragm and the valve body are sealed by sealing materials. Most of the sealing materials use industrial sealant and fluorine rubber, etc., which have poor sealing reliability and poor high temperature and low temperature resistance. Contents of the invention [0003] In order to overcome the above-mentioned problems existing in the traditional diaphragm valve, the present invention provides a diaphragm valve suitable for high and low temperature environments. [0004] The technical solution adopted by the present invention to achieve the above purpose is: a diaphragm valve suitable for high and low temperature environments, including an upper valve body 3 and a lower valve body 5, the upper valve body 3 is provided with a valve stem 1, and the lower valve body 5 The lower part is provide...

Claims

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Application Information

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IPC IPC(8): F16K7/16
CPCF16K7/16
Inventor 董明
Owner DALIAN XINGANG HYDRAULIC PIPE FITTING
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