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Valve body of miter valve

A technology of valve body and valve stem hole, which is applied in the direction of valve lift, valve details, valve device, etc., and can solve the problems of insufficient strength and weight increase of the central part of the valve body

Inactive Publication Date: 2008-03-26
巴阀门株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this structure, the outer peripheral portion of the valve body is thickened, which increases the weight, and at the same time, the strength of the central portion of the valve body becomes insufficient.

Method used

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  • Valve body of miter valve
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  • Valve body of miter valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] 1 to 6, 10 is a valve body of a central butterfly valve, based on the shape of a disc, as shown in FIG. 6, with an inclined surface with an angle α centered on the Y axis relative to the X axis. Bosses 13 , 14 for upper and lower stem holes for forming upper and lower stem holes 11 , 12 are provided above and below the Y axis, and the two bosses are connected by longitudinal ribs 15 . In addition, in this specification, the Y axis is referred to as the valve axis that is the center axis of rotation of the valve body, the X axis is referred to as the axis perpendicular to the Y axis at the center of the valve body, and the Z axis is referred to as the axis perpendicular to the X axis through Axis parallel to the Y-axis at the center of the plane of the valve body.

[0036] On the nozzle side surface of the valve body 10, a plurality of transverse ribs 16a, 16b, 16c are formed. The transverse rib has a certain height from the surface of the valve body, and extends from t...

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PUM

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Abstract

A valve body of a butterfly valve is provided to extremely thin the thickness of a base disc of the valve body and to be lightweight by reducing the weight of the whole valve body. Boss unitsb of a holefor a valve rod are projected outward and mounted at upper and lower sides of a Y-axis of a disc-shaped valve body. Plural horizontal ribs with the predetermined height are extended in the direction of an X-axis and formed on the surface of a nozzle of the valve body and a rear side of an orifice.

Description

technical field [0001] The invention relates to a valve body of a butterfly valve for opening and closing a pipeline through which fluid flows. Background technique [0002] In the past, various butterfly valves are known for opening and closing, controlling the flow of a fluid through a pipeline. The butterfly valve is a disc-shaped valve body that is freely rotatably supported in a cylindrical valve body. The rotation shaft of the valve body extends out of the valve body and is connected to an operating mechanism (actuator) to be driven to rotate. of. In the fully open state, the valve body is located in the center of the valve body and is parallel to the pipeline direction, which becomes the main factor for reducing the flow path area and creates resistance to the fluid. As the resistance factor of the valve body acting on the fluid, in addition to the reduction of the flow path area due to the thickness of the valve body, the pressure generated by the stepped portion f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/22
CPCF16K1/222F16K1/36F16K27/0218
Inventor 龟沢二郎
Owner 巴阀门株式会社