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Flange type plate check valve

A check valve, flanged technology, applied in the field of flanged plate check valves, can solve the problems of difficult installation and positioning, restrictions on installation parts, etc., and achieve the effect of convenient installation and positioning and reducing flow resistance.

Inactive Publication Date: 2016-03-30
杨春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, the connection mode of the plate check valve is the clip type. The actual diameter of this form of plate check valve is smaller than the nominal diameter, and there will be a certain flow resistance. Therefore, the installation position is limited, and the installation and positioning are difficult.

Method used

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  • Flange type plate check valve

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Embodiment Construction

[0010] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0011] Such as figure 1 As shown, a flanged plate check valve includes a valve body 1, an inlet flange 2 and an outlet flange 3, the outlet end of the valve body 1 is provided with a valve cover 11, and the inner diameter of the outlet flange 3 is larger than The inner diameter of the inlet flange 2 and the inner diameter difference are three times of the thickness of the bonnet 11 .

[0012] An O-ring is arranged at the joint between the flange plate and the pipeline.

[0013] As shown in the figure, the use of this type of check valve can meet the needs of large-diameter outlet-side pipelines, and the valve cover can be fully opened to ensure that the actual diam...

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Abstract

The invention provides a flange type plate check valve. The flange type plate check valve comprises a valve body, an inlet flange plate and an outlet flange plate. A valve deck is arranged at the outlet end of the valve body. The inner diameter of the outlet flange plate is larger than that of the inlet flange plate, and the difference between the inner diameter of the outlet flange plate and the inner diameter of the inlet flange plate is at least twice the thickness of the valve deck. According to the flange type plate check valve, the consistency of an actual diameter and the nominal diameter is guaranteed, the flow resistance is reduced, and installing and positioning are convenient.

Description

technical field [0001] The invention relates to a flanged plate check valve, which belongs to the field of pipeline valve bodies. Background technique [0002] Generally, the connection mode of the plate check valve is the wafer type. The actual diameter of this form of plate check valve is smaller than the nominal diameter, and there will be a certain flow resistance. Therefore, the installation position is limited, and the installation and positioning are difficult. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a flanged plate check valve, which ensures that the actual diameter is consistent with the nominal diameter, reduces flow resistance, and is convenient for installation and positioning. [0004] In order to solve the problems of the technologies described above, the present invention provides the following technical solutions: [0005] A flanged plate check valve, com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03
Inventor 杨春陈光徐跃明王张弛卢锋张阳龙岩
Owner 杨春