CN203585429U - Multi-channel plug valve - Google Patents

Abstract

Multi-channel plug valve consists of valve body, valve core, valve stem, driving handle, hexagonal bolts, lock nuts and packing gland. The driving handle is fixed on the upper end of the valve stem through a lock nut, and the packing gland and the valve body are fixed through hexagonal bolts. There is one medium inlet and three medium outlets on the valve body, the medium inlet and the medium outlet are distributed in a cross-shaped structure, and the valve core is arranged in the valve body. There are two passages in the spool, and the two passages intersect with each other to form a cross. The utility model has the advantages of: simple structure, two passages interlaced in a cross shape; convenient operation, the cock valve can be opened or closed by driving the handle to rotate 45 degrees; Road supply and transmission medium requirements.

Description

Multi-way plug valve

technical field

The utility model relates to a multi-channel plug valve, which belongs to the technical field of industrial valves.

Background technique

The plug valve is a closing member or a plunger-shaped rotary valve. By rotating, the channel port on the valve plug is the same as or separated from the channel port on the valve body to realize opening or closing. The shape of the valve plug of the plug valve can be cylindrical or conical. In cylindrical plugs, the passages are generally rectangular; in tapered plugs, the passages are trapezoidal. These shapes make the structure of the plug valve light, but at the same time, it also produces a certain loss. Plug valves are most suitable for cutting off and connecting media and diverting, but depending on the nature of the application and the erosion resistance of the sealing surface, it can sometimes be used for throttling. Since the movement between the sealing surfaces of the plug valve has a wiping effect, and can completely prevent contact with the flowing medium when fully open, it can usually also be used for medium with suspended particles. Another important feature of the plug valve is that it is easy to adapt to a multi-channel structure, so that a valve can obtain two, three, or even four different flow channels. This simplifies the design of the piping system and reduces the amount of valves and some connecting fittings required in the equipment. The three-way and four-way plug valves are suitable for the occasions where the flow direction of the medium is changed or the medium is distributed in the Hugong plant.

Utility model content

The purpose of the utility model is to provide a multi-channel plug valve with simple structure and convenient operation, which can meet the requirements of supplying and transporting media to different pipelines respectively.

The technical scheme that the utility model relates to:

Multi-channel plug valve consists of valve body, valve core, valve stem, driving handle, hex bolt, lock nut and packing gland.

The driving handle is fixed on the upper end of the valve stem through a lock nut, and the packing gland and the valve body are fixed through hexagonal bolts.

There is one medium inlet and three medium outlets on the valve body, the medium inlet and the medium outlet are distributed in a cross-shaped structure, and the valve core is arranged in the valve body.

There are two passages in the spool, and the two passages intersect with each other to form a cross.

The utility model has the advantages of: simple structure, two passages interlaced in a cross shape; convenient operation, the cock valve can be opened or closed by driving the handle to rotate 45 degrees; Road supply and transmission medium requirements.

Description of drawings

Fig. 1 is a schematic diagram of a full-section structure of the utility model.

Fig. 2 is a structural schematic diagram of a section of a valve core of the present invention.

Among them: 1. Valve body, 2. Valve core, 3. Valve stem, 4. Drive handle, 5. Hex bolt, 6. Lock nut, 7. Packing gland, 8. Channel, 9. Medium inlet, 10. Media outlet.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The utility model is shown in Fig. 1, Fig. 2, and multi-channel plug valve is made up of valve body 1, spool 2, valve stem 3, drive handle 4, hex bolt 5, lock nut 6 and packing gland 7.

The driving handle 4 is fixed on the upper end of the valve stem 3 through a lock nut 6 , and the packing gland 7 and the valve body 1 are fixed through a hexagonal bolt 5 .

There is one medium inlet 9 and three medium outlets 10 on the valve body 1 , the medium inlet 9 and the medium outlet 10 are distributed in a cross-shaped structure, and the valve core 2 is arranged in the valve body 1 .

There are two passages 8 in the valve core 2, and the two passages 8 intersect with each other to form a cross.

When the driving handle 4 rotates 45 degrees, when the valve core 2 is in the closed state, the channel 8 in the valve core 2 is not connected with the pipeline in the valve body 1, and the plug valve is closed; when the driving handle 4 rotates 45 degrees again, the valve core 2 is in the open state, the channel 8 in the valve core 2 communicates with the pipeline in the valve body 1, the plug valve is opened, the medium flows in from the medium inlet 9, and then flows out from the three medium outlets 10 respectively.

Claims (1)

1. multi-path stopcock, by valve body (1), spool (2), valve rod (3), driving handle (4), hex head bolt (5), locking nut (6) and Gland (7), formed, it is characterized in that: on described valve body (1), have a medium import (9) and three media outlets (10), medium import (9) is decussate texture with media outlet (10) and distributes, and spool (2) is placed in valve body (1); In described spool (2), there is two passes (8), the interlaced cross that is of two passes (8).

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