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Carbon steel globe valve

Carbon steel shut-off valve and flange gate valve are the same type of valve. The difference is that the closing member is a valve body, and the valve body rotates around the center line of the valve body to open and close a valve.

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    13884735099

Carbon steel shut-off valve and flange gate valve are the same type of valve. The difference is that the closing member is a valve body, and the valve body rotates around the center line of the valve body to open and close a valve. The gate valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. Two-piece ball valve, three-piece ball valve, is a new type of valve that has been widely used in recent years.

 

  advantage:

 

  1. The fluid resistance is small, and its resistance coefficient is equal to the pipe length of the same length.

 

  2. The structure is simple, small in size and light in weight.

 

  3. Tight and reliable, the sealing surface material of the gate valve is widely used in plastics and has good sealing performance. It has also been widely used in vacuum systems.

 

  4. The operation is convenient, the opening and closing is rapid, and the rotation is 90° from full opening to full closing, which is convenient for long-distance control.

 

  5. The maintenance is convenient, the gate valve has a simple structure, and the sealing ring is generally movable, and the disassembly and replacement are relatively convenient.

 

  6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium does not cause erosion of the sealing surface of the valve.

 

  7. Wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.

 

  Carbon steel globe valves can be divided into straight-through, three-way and right-angle types according to their channel positions. The latter two gate valves are used to distribute the medium and change the direction of the medium.

 

  Structural features:

 

  1. Open and close without friction. This feature completely solves the problem that the traditional [wiki] valve [/wiki] affects the seal due to friction between the sealing faces.

 

  2. Top-loading structure. The valve installed on the pipeline can be directly inspected and repaired online, which can effectively reduce the parking of the device and reduce the cost.

 

  3. Single seat design. It eliminates the problem that the cavity medium in the valve affects the safety of use due to abnormal boosting.

 

  4. Low torque design. The specially designed valve stem can be easily opened and closed with a small handle.

 

  5. Wedge seal structure. The valve is based on the mechanical force provided by the valve stem, and the ball wedge is pressed onto the valve seat to seal, so that the sealing property of the valve is not affected by the change of the pressure difference of the pipeline, and the sealing performance is reliably guaranteed under various working conditions.

 

  6. Self-cleaning structure of the sealing surface. When the ball is tilted away from the valve seat, the fluid in the pipeline passes through the spherical sealing surface at 360°, which not only eliminates the high-speed fluid scouring on the valve seat, but also washes away the accumulation on the sealing surface to achieve self-cleaning. .