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The Working Principle Of Globe Valve And Detailed Introduction

Jul 03, 2017

     Stainless steel electric cut-off valve structure features: 1, no friction. This function completely solves the problem that the traditional valve affects the seal because of the friction between the sealing surfaces. 2. Top-mounted structure. The valve installed on the pipeline can be directly on-line inspection and maintenance, can effectively reduce the device parking, reduce costs. 3, single valve seat design. It eliminates the problem that the cavity medium of the valve affects the safety of the use of abnormal boost. 4. Low torque design. Special structural design of the stem, only with a small hand to the valve can easily open and close. 5, wedge-shaped sealing structure. Valve is the mechanical force provided by the stem, the ball wedge pressure on the valve seat and sealed, so that the valve tightness is not affected by the pressure difference in the pipeline, in various operating conditions sealed performance is reliable guarantee. 6. Self-cleaning structure of the sealing surface. When the sphere leans away from the valve seat, the fluid in the pipeline passes along the spherical seal surface to 360 evenly through, not only eliminates the high speed fluid to the seat partial scour, also washed away the accumulation material on the seal surface, achieves the self-cleaning goal.Globe Valve
      The closing valve (stop valve, globe valve) is a plug-shaped disc, sealed above the plane or sea cone, the disc along the center line of the seat for straight motion. The movement of the stem, (common name: Dark Rod), also has the lifting and rotating rod type can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. As a result, this type of shutoff valve valve is ideally suited for cutting or regulating and throttling. Because the valve stem of this kind of valve opens or closes the travel relatively short, and has the very reliable cut off function, also because the valve seat pass the mouth change and the valve petal's stroke to become the positive proportional relation, is suitable for the flow adjustment.Globe Valve
      Cut-off valve, also known as Jummen, is one of the most widely used valves, it is widely welcomed because of the opening and closing process between the sealing surface friction small, more durable, open high, easy to manufacture, easy to maintain, not only applicable to the medium and low pressure, but also applicable to high pressure. Closing valve closed principle is to rely on the pressure of the valve, so that the disc sealing surface and valve seat sealing surface closely fit to prevent media circulation. China's valve "three to" has stipulated that the flow of the cut-off valve, all the use of Top-down, so the installation has directional. The structure length of the cut-off valve is larger than the gate valve, while the fluid resistance is large and the sealing reliability is not strong in the long run.Globe Valve