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a valve

A valve and vent valve technology, which is applied in the field of PE valves, can solve the problem that the vent mechanism has no self-checking and sealing performance function.

Active Publication Date: 2018-09-14
LIANGGANG VALVE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing ball valve with bleeder has no self-checking sealing performance function for the bleeder mechanism, the present invention proposes a bleeder valve that has the function of self-checking the sealing performance for the bleeder mechanism and can block the bleeder interface when the bleeder is not needed. ball valve

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0027] A valve which is a single relief ball valve, see figure 1 , including at least one main valve 1, the two sides of the main valve 1 are connecting arms 101, and the connecting arm 101 on one side of the main valve 1 is provided with a release mechanism 2, and the release mechanism 2 communicates with the main valve 1; The release mechanism 2 consists of release valve 201, release pipe 202, and release interface 203 from top to bottom. An electrofusion sleeve 6 is passed between the release valve 201 and the release pipe 202 and between the release pipe 202 and the release interface 203. connected, the release interface 203 is integrally formed and communicated with the connecting arm of the main valve 1, and a sealing device 4 is provided in the release interface 203, such as Figure 4 , Figure 5 As shown, the sealing device 4 includes an inner nesting tube 401 and a movable sealing plug 402, the outer wall of the inner nesting tube 401 is in sealing fit with the inner...

Embodiment 2

[0031] A valve which is a double relief ball valve, see figure 2 , image 3, including at least one main valve 1, the two sides of the main valve 1 are connecting arms 101, each of the connecting arms 101 on both sides of the main valve 1 is provided with a release mechanism 2, and the release mechanism 2 communicates with the main valve 1; The release mechanism 2 is sequentially composed of release valve 201, release pipe 202, and release interface 203 from top to bottom. An electrofusion sleeve is passed between the release valve 201 and the release pipe 202 and between the release pipe 202 and the release interface 203. 6 connection, the release interface 203 is integrally formed and communicated with the connecting arm of the main valve 1, and a sealing device 4 is respectively provided in the release interface 203 of the two release mechanisms 2, and the sealing device 4 includes an inner nested pipe 401 and A movable sealing plug 402, the outer wall of the inner nested...

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Abstract

The invention discloses a valve and relates to the technical field of valves. The valve at least comprises a main valve, a connecting arm on one side of the main valve is provided with a diffusing mechanism or connecting arms on the two sides of the main valve are each provided with a diffusing mechanism, and the diffusing mechanisms communicate with the main valve; each diffusing mechanism is sequentially composed of a diffusing valve, a diffusing pipe and a diffusing connection opening from top to bottom, wherein the diffusing valve and the diffusing pipe are connected through an electric smelting sleeve, the diffusing pipe and the diffusing connection opening are connected through an electric smelting sleeve, the diffusing connection opening and the connecting arms of the main valve areintegrally formed in a communicating mode, and a sealing device is arranged in the diffusing connection opening and comprises an embedding sleeve pipe and a movable sealing plug. In order to solve the problem that an existing diffusing ball valve has no the function of self-checking of sealing performance for a diffusing mechanism, the provided diffusing ball valve has the function of self-checking of sealing performance for the diffusing mechanism, and the diffusing connection openings can be plugged when a diffusing device is not needed.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a PE valve with relief. Background technique [0002] In the gas pipeline network, the PE ball valve acts as a switch in the process of pipeline gas transmission, and the pipeline in operation usually needs to control the downstream gas transmission through the switch of the valve. PE valves have the advantages of corrosion resistance, maintenance-free, small opening and closing torque, and light weight of the valve. During installation and construction, they also have the advantages of convenient handling and simple welding. Common PE ball valves include ordinary PE ball valves, PE single relief ball valves and PE double relief ball valves. The existing PE double release ball valve can be found in the following patent: the patent name is "Double Blocking Double Release Ball Valve", the authorized announcement number is CN202719177U, and the authorized announcement date is Februa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06F16K5/08
Inventor 赵桂凤
Owner LIANGGANG VALVE GRP