Ultra-large-caliber welding ball valve
A super-large caliber and welded ball technology, which is applied to valve details, valve devices, and valve housing structures, can solve problems such as increasing engineering costs and achieve the effect of reliable design and sealing performance
Inactive Publication Date: 2018-09-21
JIANGSU WELDV VALVE
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Problems solved by technology
[0004] At present, the demand for super large-caliber all-welded ball valves for long-distance pipelines in heating projects in major cities is increasing day by day. Due to the limitation of domestic technology and manufacturing level, the required valves are mainly imported, which increases the project cost.
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[0021] Example: such as figure 1 , figure 2 with image 3 As shown, a super-large-diameter welded ball valve includes a valve body 2 and an extension pipe 1. An extension pipe 1 is provided on both sides of the valve body 2, and a ball 6 is arranged inside the valve body 2. The extension pipes 1 extend from the valve body respectively. The two sides of 2 extend into the interior and connect with the spherical surface of the ball 6 provided inside. The upper part of the ball 6 extends upwards and is provided with a cylindrical central shaft 9 beyond the valve body 2. The top of the central shaft 9 is provided with a cap nut 16. The cap nut 16 is threadedly connected to the central shaft 9, and the joint between the cap nut 16 and the top of the central shaft 9 is provided with a handle 14 extending outward. The handle 14 is butterfly-shaped, and the connection position between the handle 14 and the central shaft 9 is provided with The positioning pin 13 plays a role of furth...
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The invention relates to the technical field of valve manufacturing and particularly relates to an ultra-large-caliber welding ball valve. The ultra-large-caliber welding ball valve comprises a valvebody and extension pipes, wherein one extension pipe is arranged on each of two sides of the valve body, a ball is arranged in the valve body, and the extension pipes respectively stretch into the valve body from two sides and are connected with a spherical surface; and a cylindrical middle shaft is arranged at the upper part of the ball in an upward extension manner and stretches out of the valvebody, a cap type nut is arranged at the top of the middle shaft and is in threaded connection with the middle shaft, a handle which extends upwards is arranged at the joint between the cap type nut and the middle shaft and is butterfly-shaped, and a positioning pin is arranged at the joint of the handle and the middle shaft. Compared with an existing ball valve, the ultra-large-caliber welding ball valve has the advantages that the handle is butterfly-shaped, so that the manual grasping is relatively convenient, the time and the labor are saved during the opening and closing of the valve, andthe operation is convenient and rapid.
Description
technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to a super large diameter welded ball valve. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. [0003] Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome-moly...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16K5/06F16K5/08F16K41/04F16K31/60F16K27/06F16K27/10
CPCF16K5/06F16K5/08F16K27/067F16K27/107F16K31/60F16K41/046
Inventor 王鹏陆怡徐翔
Owner JIANGSU WELDV VALVE