Flange cast steel through shut-off valve
A cut-off valve and cast steel technology, which is applied in the direction of lifting valve, valve details, valve device, etc., can solve the problems of short service life, sealing influence, low strength, etc., and achieve the effect of long service life, easy replacement and compact structure
Inactive Publication Date: 2014-01-15
JIANGSU XINGYA MARINE VALVE
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Problems solved by technology
[0002] At present, the existing globe valves are generally of ordinary plug-type or flat plug-type structure, and the material is mainly cast iron. Existing globe valves usually have complex valve structures, low strength, wear resistance, easy leakage, and short service life. shortcoming
Due to the limited processing capacity of the existing cast steel globe valve, its structure is relatively simple, which affects the sealing, and the replacement of the wearing parts of the globe valve is not convenient enough
Method used
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Embodiment Construction
[0013] Such as figure 1 As shown, the flange cast steel straight-through globe valve includes a valve body 1, a valve stem 5 and a valve seat 2. The valve body 1 is provided with an inlet and an outlet, the valve seat 2 is connected with the valve body 1, and the valve body 1 is provided with a valve cover. 7. The bonnet 7 is connected with the valve stem 5. The upper end of the valve stem 5 is provided with a hand wheel 8. The lower end of the valve stem 5 is provided with a valve disc 3. The valve disc 3 extends into the valve body 1 and can form a sealed connection with the valve seat 2. . The upper part of the valve stem 5 is provided with threads, and the upper end of the valve cover 7 is provided with a threaded sleeve 9. The valve stem 5 is connected with the valve cover 7 through the threaded sleeve 9 and can move up and down along the axis of the valve stem 5. The lower end of the valve cover 7 is provided with a stuffing seat 6 , and the valve rod 5 is passed throug...
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The invention relates to a flange cast steel through shut-off valve which comprises a valve body, a valve rod and a valve base. An inlet and an outlet are formed in the valve body, the valve base is connected with the valve body, a valve cover is arranged on the valve body, the valve cover is connected with the valve rod, a hand wheel is arranged at the upper end of the valve rod, and a valve disc is arranged at the lower end of the valve rod. The valve disc extends into the valve body and is connected with the valve base in a sealing mode, threads are arranged on the upper portion of the valve rod, a threaded bush is arranged at the upper end of the valve cover, the valve rod is connected with the valve cover through the threaded bush, a packing base is arranged at the lower end of the valve cover, and the valve rod is arranged in the packing base in a penetrating mode. A packing hole is formed in the center of the valve cover, gland packing is filled into the packing hole, a gland is arranged on the packing hole, and the gland is fixedly connected with the valve cover through a screw. The valve body and a flange are machine to be of an integral structure through cast steel, and therefore the strength is high. The valve disc is matched with the valve base, and the valve disc and the valve base form good seal connection. The threaded bush and the packing base arranged at the upper end and the lower end of the valve cover respectively are convenient to replace. The structure is compact, sealing is good, service life is long and the operation is convenient.
Description
technical field [0001] The invention relates to a valve, in particular to a flanged cast steel straight-through stop valve with good sealing and easy replacement of wearing parts. Background technique [0002] At present, the existing globe valves are generally of ordinary plug-type or flat plug-type structure, and the material is mainly cast iron. Existing globe valves usually have complex valve structures, low strength, wear resistance, easy leakage, and short service life. shortcoming. Due to the limited processing capacity of the existing cast steel globe valve, its structure is relatively simple, so that the sealing is affected, and the replacement of the wearing parts of the globe valve is not convenient enough. Contents of the invention [0003] The purpose of the present invention is to provide a flanged cast steel straight-through stop valve with good sealing, easy replacement of wearing parts and long service life. [0004] The purpose of the present invention ...
Claims
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IPC IPC(8): F16K1/00F16K1/32F16K41/02F16K27/02F16K27/12
CPCF16K1/02F16K27/02F16K27/08F16K41/02
Inventor 赵泽忠陆凡顾永银高德才高亚平
Owner JIANGSU XINGYA MARINE VALVE