Ball valve free of dead angles

A technology of corner balls and spheres, applied in the direction of valve devices, cocks including cut-off devices, engine components, etc., can solve the problems of the service life of the valve body, insufficient sealing, large matching clearance, etc., to improve service life and simple structure , the effect of reducing wear

Inactive Publication Date: 2013-11-13
浙江远安流体设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the fluid conveying pipeline system, gate valve, globe valve and ball valve are the most widely used valves, and their disadvantages also have their own advantages and disadvantages. However, ordinary ball valves are prone to fluid residue due to the large fit gap and insufficient sealing performance during use. and leakage, will have a certain impact on the service life of the valve body

Method used

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  • Ball valve free of dead angles

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Embodiment Construction

[0009] Such as figure 1 As shown, a ball valve without dead angle includes a left valve body 1, a right valve body 2 and a valve seat 3 arranged in the right valve body 2, and a gasket is arranged between the left valve body 1 and the right valve body 2 4 and fixed by butterfly nut 5 and stud 6, valve seat 3 is set in right valve body 2, O-ring 7 is arranged between valve seat 3, left valve body 1 and right valve body 2, valve seat 3 is provided with a sphere 8 and the valve seat 3 is seamlessly connected with the sphere 8, and the sphere 8 is provided with a through hole 9, and the diameter of the through hole 9 is the same as that of the left valve body 1 and the right valve body 2. This structure ensures that there is no dead angle in the valve seat, and the fluid flow is smooth without residue.

[0010] A valve stem 11 is arranged between the sphere 8 and the handle 10, the valve stem 11 and the handle 10 are fixed by a nut 12, and a thin nut 13 and a retaining ring 14 ar...

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Abstract

The invention discloses a ball valve free of dead angles, which comprises a left valve body, a right valve body and a valve seat arranged in the right valve body, wherein a sealing gasket is arranged between the left valve body and the right valve body and is fixed by a butterfly nut and a stud; O-shaped rings are arranged between the valve seat and the left valve body as well as between the valve seat and the right valve body; a ball body is arranged in the valve seat and is connected with the valve seat in a seamless manner; a through hole is formed in the ball body; and the diameter of through hole is equal to that of through holes in the left and right valve bodies. The ball valve has the beneficial effects that the structure is simple; the ball body is connected with the valve seat in the seamless manner; and the diameter of through hole in the ball body is equal to that of the through holes in the left and right valve bodies, so that fluid residue is avoided, and erosion and influence of fluid on the valve is reduced; and a locating pin is arranged, so the excessive rotation range of a handle is avoided, abrasion is reduced, and the service life of the valve is prolonged.

Description

technical field [0001] The invention relates to a valve, in particular to a ball valve without dead angle. Background technique [0002] In the fluid conveying pipeline system, gate valve, globe valve and ball valve are the most widely used valves, and their disadvantages also have their own advantages and disadvantages. However, ordinary ball valves are prone to fluid residue due to the large fit gap and insufficient sealing performance during use. And leakage will have a certain impact on the service life of the valve body. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ball valve without dead angle in view of the deficiencies of the prior art. [0004] In order to achieve the above object, the measures taken by the present invention: [0005] A ball valve without dead angle, comprising a left valve body, a right valve body and a valve seat arranged in the right valve body, a sealing gasket is arranged bet...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08
Inventor 邵显安
Owner 浙江远安流体设备有限公司
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