CN2196218Y

CN2196218Y - Individual processing and welding type stop valve

Info

Publication number: CN2196218Y
Application number: CN 94229161
Authority: CN
Inventors: 孔庆复
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-19
Filing date: 1994-07-19
Publication date: 1995-05-03
Anticipated expiration: 2003-11-15

Abstract

The utility model discloses a stop valve in an individual processing and welding type. The utility model uses welding instead of casting. A valve body, a valve cover and a valve base can be necessarily decomposed to form a plurality of components. The valve body is composed of a medium diameter pipe and a head. The end flanges are respectively arranged on both ends of the valve base. One ends of an inlet diameter pipe and an outlet diameter pipe are respectively connected with the end flanges. A medium flange is arranged on the upper end of the medium diameter pipe. The utility model has the advantages that the split processing is comparatively easy, body is light, and appearance is favorable.

Description

Individual processing and welding type stop valve

The utility model relates to the valve that departments such as a kind of chemical industry, oil field and power station use, but the stop valve that particularly a kind of split processing is welded.

In the past, the valve major part of generally using in departments such as chemical industry, oil field, power stations is a cast steel, also has a small amount of for cast iron.Because casting technique is relatively backward, the foundry goods volume is big, weight is big, and it is many therefore to occur consuming metal; The foundry goods sand holes are many in addition, when suppressing, the many of seepage occur.After the processing, the lighter wants repair welding, and weight person will scrap; The main part of valve seals the position in foundry goods inside, bad processing, and cutter is difficult for introducing, and knife bar is long, the rotating mass imbalance, vibration easily is so work efficiency is low.

The purpose of this utility model is to propose a kind of split processing welding type stop valve, and stop valve valve body, valve gap are decomposed processing, carries out assembly welding again.

For achieving the above object, the split processing welding type stop valve of employing includes valve body, valve seat and valve gap, and respectively there was the end flange dish footpath pipe, valve seat both sides during its valve body was made up of steel pipe and end socket, and import path tube and outlet path tube are connected on respectively on the end flange dish.

Compare with existing cast steel stop valve, split processing welding stop valve has been avoided seepage fully, thereby do not need repair welding, replace casting with steel plate, steel pipe, so light, the withstand voltage height of body has been saved 40% metal, reduced cost, divide body processing technology simple, the manufacturing efficiency height, valve surface is more attractive in appearance than foundry goods simultaneously.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model.

Split processing welding type stop valve is made up of middle flange plate 1, end flange dish 2, middle footpath pipe 3, import path tube 4, outlet path tube 5, valve seat 6, end socket 7, sealing surface seat 8, handwheel 9, strut 10, its valve body is made up of middle footpath pipe 3 and end socket 7, and pipe upper end, middle footpath is middle flange plate 1.The two ends of valve seat 6 are end flange dishes 2, and for " slyness " that solves liquid stream turns to, the import path tube is welded on the inboard of base end flange plate 2 respectively with special bend pipe a, end of import path tube 4 and outlet path tube 5, and managed on 3 in the footpath during its other end was connected on respectively.For reducing resistance, outlet path tube 5 divides half forging and pressing with the pipe 3 usefulness steel plates footpath die forging of middle footpath, makes one through be welded (available single face welding and double face shaping welding rod welding).Manage on 3 in the footpath in being welded in after the sealing surface seat 8 monomers processing (car, built-up welding, finish turning).

Claims

1, a kind of split processing welding type stop valve comprises valve body, valve seat, valve gap, it is characterized in that valve body is managed by middle footpath and end socket is formed, and respectively there is the end flange dish valve seat both sides, and an end of import path tube and outlet path tube is connected on respectively on the end flange dish.