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Swing check valve

A check valve and swing-type technology, which is applied in the direction of lifting valve, valve detail, control valve, etc., can solve the problems of poor sealing performance and cumbersome production process, and achieve compact structure, improve industrial production efficiency, and light weight Effect

Inactive Publication Date: 2013-12-11
WUXI FUSHENG VALVE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a design makes the valve seat 2 of the existing conventional swing check valve inclined at an angle of 5°, which must be completed in a separate process during processing, resulting in cumbersome production processes and poor sealing performance.

Method used

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  • Swing check valve
  • Swing check valve

Examples

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] Such as figure 1 As shown, a swing check valve includes a valve body 10 provided with a valve seat 20, a valve cover 40, and a valve disc 30. The valve disc 30 is composed of a valve disc body 31 provided with a sealing surface and a The upper side of the valve disc body 31 is formed by a rotating shaft 32 connected with the valve disc body 31. The rotating shaft 32 includes two sections on the left and right, and a U-shaped ...

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PUM

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Abstract

The invention discloses a swing check valve, which comprises a valve cover, a valve body, a valve shaft, a swinging arm and a valve clack, wherein the valve shaft is arranged in the valve body; the swinging arm is arranged on the valve shaft; the valve clack is arranged on the swinging arm; the valve clack consists of a valve clack disk body provide with a sealing surface, and a rotating shaft which is arranged on one side on the valve clack disk body and is connected integrally with the valve clack disk body; an included angle between the sealing surface and the central line of a valve cavity is 45 degrees. The included angle between the sealing surface and the central line of the valve cavity is designed to be 45 degrees, so that a 5-degree angle on a valve seat of the swing check valve can be processed without a separate process, working procedures are reduced, and the industrial production efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to a swing check valve with a Y-shaped threaded opening. Background technique [0002] The check valve is an automatic valve that opens when the medium flows downstream and closes when the medium flows backward. This method of controlling media flow is used to prevent media backflow so that the pump maintains its initial state after a shutdown, allowing reciprocating pumps and compressors to operate normally and preventing reverse rotation of back-up rotary pump and compressor units; Return valves are also used in lines that supply auxiliary systems where the pressure may rise above the main system pressure. [0003] Compared with other types of check valves, the swing check valve has small flow resistance, low pressure drop, easy opening, simple structure, and strong applicability (such as pressure fluctuations, medium pollution, etc.), so it is widely used. The swing check valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03F16K27/02F16K1/36
Inventor 许渊
Owner WUXI FUSHENG VALVE IND
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