CN2472845Y

CN2472845Y - Punching welded valve body

Info

Publication number: CN2472845Y
Application number: CN 01212116
Authority: CN
Inventors: 郑连华
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-14
Filing date: 2001-03-14
Publication date: 2002-01-23
Anticipated expiration: 2011-03-14

Abstract

The utility model discloses a punching welded valve body composed of a medium diameter tube and a through diameter tube. One end of the medium diameter tube is an arc-shaped shell cover whose bottom is provided with an arc-shaped welding seam. Two round holes in which two through diameter tubes are inserted to connect with the medium diameter tube hermetically are symmetrically arranged near the arc-shaped end. The utility model has advantages of neat and beautiful appearance, uniform dimension of an inner chamber, small resistance to the fluid and vanishing impurity content. The punching welded valve body can be made of leftover material of hot (cold) rolled steel tubes with high quality. The wall of the punching welded valve body is thin and the punching welded valve body is light, reducing the load of pipelines and saving a great deal of rolled steel for the country. The utility model is suitable for being used in pipelines in various industries, such as petrifaction, oil fields, pharmacy, food, thermoelectricity, paper making, etc.

Description

Punching welded valve body

The utility model belongs to the valve body of gate valve.

The gate valve of present industrial use, its valve body is still continued to use the product of casting, and the inner chamber cleannes are difficult to reach national C grade standard, inner chamber impurity content height, the convection cell resistance increases, and the valve volume of casting is big, and benzene is heavy, waste material.

The purpose of this utility model is, for overcoming the deficiency of prior art, provide a kind of appearance neat and artistic, and its inner chamber cleannes are better than national A grade standard, the novel Punching welded valve body that volume is little, in light weight, save material.

Following mode can realize the utility model:

Punching welded valve body is made up of middle footpath pipe and path tube, and middle footpath Guan Yiduan is circular-arc end socket, and a circular-arc weld seam is arranged at the end socket bottom, and middle footpath pipe has two circular holes near the arc end symmetry, and two path tubes insert circular hole, connect with the middle footpath seal of tube.

The middle footpath of Punching welded valve body is managed circular-arc end socket bottom and is with a hole, and this pore area internal thread adds the sealing gasket shutoff by screw.

The utility model appearance is neat and artistic, inner cavity size is even, the convection cell resistance is little, the inner chamber impurity content goes to zero, and the inner chamber cleannes have surpassed the A level regulation of national standard JB/TQ 395-85, and valve body can adopt high-quality heat (cold) steel rolling pipe leftover pieces to make, the thin body of wall is light, both can alleviate the load of pipeline, and can be country again and save great deal of steel, have better economic effect and social benefit.

Fig. 1 is the front view of embodiment 1;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the front view of embodiment 2;

Fig. 4 is the vertical view of Fig. 3.

Embodiment 1:

Punching welded valve body, form by middle footpath pipe 1 and path tube 2, it is circular-arc end socket 5 that 1 one ends are managed in middle footpath, one circular-arc weld seam 4 is arranged at end socket 5 bottoms, and middle footpath pipe 1 has two circular holes near the arc end symmetry, and two path tubes 2 insert circular hole, managing 1 seal welding with middle footpath connects, the 4th, weld seam, the 3rd, adpting flange, this structure has overcome the drawback of existing product appearance intersection weld seam.

Embodiment 2:

The middle footpath pipe 1 of Punching welded valve body, hole 8 of taenia mediana, this pore area internal thread 6 also can be processed in circular-arc end socket 5 bottoms, add the sealing gasket shutoff by screw 7, hole 8 is as pressurizing port, and this structure has also been removed the weld seam of end socket bottom from, make its intensity higher, body cavity is slicker and more sly.

Claims

1, a kind of Punching welded valve body is made up of middle footpath pipe and path tube, and it is characterized in that: middle footpath Guan Yiduan is circular-arc end socket, one circular-arc weld seam is arranged at the end socket bottom, middle footpath pipe has two circular holes near the arc end symmetry, and two path tubes insert circular holes, connect with the middle footpath seal of tube.

2, Punching welded valve body according to claim 1 is characterized in that: middle footpath is managed circular-arc end socket bottom and is with a hole, and this pore area internal thread adds the sealing gasket shutoff by screw.