Butterfly valve

Butterfly valve or at home, we called the throttle valve acts like a ball valve and plug valve structure of the butter fly valve is a disk flat, rotating back and forth in a 90-degree angle, if the disk is placed parallel to the direction the flow. It will open the valve fully. And if placed perpendicular to the flow direction, it will close the valve. It works the same with the damper to close - open air in air conditioning systems in buildings and the use of disk instead of a ball or plug to block the flow, the butterfly valve is smaller than the ball valve and plug. valve (that is narrower than when measured in the direction of flow) and a lighter as well. The structure of the disk can not be said that the high pressure and temperature. Therefore, we often see a large butterfly valve in the pipe with water without any harm, such as cooling water. Air cooling system.

Figure 7 Butterfly valve (left), the valve stem rotates in small, close - open the valve, and (right) valve, a large gear in a closed system - open


From the rotating disk in a transverse direction of flow. The fluid pressure causes the disk to rotate to the desired position. Therefore, we often see the butterfly valve shaft to the gear for fixing the valve to close - how much open. This structure is not found in the ball valve or plug valve and the valve gear system will help to close the opening.

Butterfly valve checkprice

Butterfly valve is a valve which can be used for the separation or flow control mechanism to turn off the format of the disk.Operation is similar to a ball valve which allows quick closing.Butterfly valves are generally preferred because they reduce costs in other valve designs, as well as a lightweight in the sense that less support is needed. The disc is placed in the middle of the pipe through the disc is connected to the outside of the valve actuator is a rotary actuator and the disc is either parallel or perpendicular to the flow. Unlike ball valves, the disc is always in flux, so the pressure drop is always induced in the flow regardless of valve position.


The butterfly valve is.
Butterfly valve is from a family of valves called quarter turn valves to the "butterfly" is a metal plate mounted on the axis. When the valve is closed, the disc will be closed so that it completely blocks off the pavement. When the valve is fully open, the disc is rotated a quarter in order to help almost any of the liquid valve may open up the throttle flow.
There are many different types of butterfly valves. Butterfly valves, each adapted for different pressures and different usage.Butterfly valve is flexible, which is used to assess the flexibility of rubber with the lowest pressure. High-performance throttle valve used in a slightly higher pressure in the disc features a slightly offset in position, which increases the ability to seal the valve and reduce their tendency to wear. The best butterfly valves for high pressure.