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Large-caliber upwardly-installed fixed ball valve

A fixed ball valve, large-diameter technology, applied in valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of shutdown and shutdown of related pipelines, economic losses, etc., to achieve low production costs, reduce economic losses, and achieve online maintenance. Effect

Inactive Publication Date: 2014-03-12
KUSN WEISA VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the conventional side-mounted fixed ball valve fails to be repaired, the entire valve has to be removed from the pipeline, especially the welded connection valve. In order to repair the valve, the valve has to be cut off from the pipeline, resulting in long-term shutdown of the relevant pipeline. stop production, causing major economic losses

Method used

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  • Large-caliber upwardly-installed fixed ball valve

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Embodiment Construction

[0014] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0015] figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0016] Such as figure 1 Shown: large diameter top entry trunnion ball valve, including valve ball 1, valve seat and valve body 8, the valve seat is set between the valve ball 1 and valve body 8, and the valve seat includes a retainer The main body 3 and the spring seat 4 are two parts, which are split structures. The outer circumference of the fixture body 3 is provided with a shoulder, and the outer circumference of the tail of the shoulder is processed with external threads. The inside of the spring seat 4 is processed with an internal thread, and the holder body 3 and the spring seat 4 are screwed and connected by thread fit.

[0017] Wherein, the end face of the spring seat 4 adjacent to the valve body 8 is inwardly recessed to form a ...

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Abstract

The invention relates to a large-caliber upwardly-installed fixed ball valve. The large-caliber upwardly-installed fixed ball valve comprises a valve ball, a valve seat and a valve body, wherein the valve seat is arranged between the valve ball and the valve body. The large-caliber upwardly-installed fixed ball valve is characterized in that the valve seat comprises a fixing device body and a spring retainer and is of a split structure, a shoulder is arranged on the outer circumference of the fixing device body, outer threads are processed on the outer circumference of the tail portion of the shoulder, inner threads are processed inside the spring retainer, and the fixing device body and the spring retainer are connected though the threads in a matching and screwing mode. The large-caliber upwardly-installed fixed ball valve is simple in structure and low in production cost, the valve seat is of the split structure so that the fixed ball valve can be upwardly installed, then online maintenance of the fixed ball valve can be achieved, the time of work stopping and production stopping is shortened, and the economic loss is reduced.

Description

technical field [0001] The invention relates to a valve seat of a top-entry fixed ball valve, in particular to a valve seat applied to a large-diameter top-entry fixed ball valve, and belongs to the technical field of valve design. Background technique [0002] We know that the full diversion design of the fixed ball valve has the advantages of small medium resistance, convenient operation and fast speed, and is widely used in oil and gas pipelines. However, when the conventional side-mounted fixed ball valve fails to be repaired, the entire valve has to be removed from the pipeline, especially the welded connection valve. In order to repair the valve, the valve has to be cut off from the pipeline, resulting in long-term shutdown of the relevant pipeline. Stop production, causing heavy economic losses. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a large-diameter top-entry trunni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K5/20
CPCF16K5/0636F16K5/0689F16K5/201
Inventor 鲁诗强周向青
Owner KUSN WEISA VALVE
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