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Method Of Making Hydraulic Valve Casting

Yutung Industrial Limited | Updated: May 31, 2017

The hydraulic valve casting can be specifically applied to a reservoir (or a well-known flush tank) inlet valve. However, the hydraulic valve casting valve is not limited to this particular application. The present invention also relates to a storage tank inlet valve and a storage tank.

Hydraulic valve casting existing storage tank valve can be easily divided into two categories. The first type is a mechanical lever valve having a valve seat with a round hole and a disc which is moved by means of a float arm to open or close the circular hole. The buoyancy generated by the float attached to the float arm is amplified by the mechanical advantages of the length of the float arm. This structure is relatively simple, very reliable, and has been used for many years.

However, the average width of the storage tank has recently been reduced due to the reduction in the amount of water used to rinse the toilet bowl. Since only a small amount of water is required, the size of the tank used to store the rinsing water is also reduced accordingly. As a result, the length of the float arm that can be used can no longer be used for such a tank. Resulting in the mechanical inlet valve closing force of the decline. This in turn leads to the failure of this type of valve to those areas with high water pressure.

Due to the development of hydraulic valve casting, hydraulic inlet valves are widely used in storage tanks. This hydraulic inlet valve closes the valve by applying an inlet pressure by applying a inlet pressure to a larger opposing face of the valve element. But the hydraulic inlet valve has many shortcomings. One drawback is that when one of the plurality of valve assemblies fails, the hydraulic inlet valve always opens automatically. In other words, the valve failure can not cut off the water flow. Since this will cause the bathroom to be flooded and the massive loss of water, the best solution should be that the valve is automatically shut down when it fails. The result is that no water will appear in this case.

In the case of a storage tank inlet valve, another desired performance is quiet work in addition to failure. The traditional inlet valve is a noise source with a surprising amount of noise during its work. Since the duration of the flushing operation is short, it takes a long time for the water tank to re-fill the water required for the next flush, and the noise generated by the inlet valve is present throughout the tank filling process. This noise is due to cavitation, turbulence and water free surface noise (the latter is due to water - air - water sector) caused. If you can get a quiet storage tank inlet valve, it shows a special advantage.

Hydraulic valve casting is accomplished by focusing on overcoming the above-mentioned drawbacks, which at least partially have the advantages described above. Accordingly, it is an object of the present invention to provide an improved valve.

According to a first aspect of the present invention, there is disclosed a pressure flow balance valve comprising a valve housing having an inlet for passage into an internal chamber and an outlet withdrawn from the interior chamber, the inlet and outlet being substantially And a generally spherical body which is located in said chamber and is mounted to move towards said outlet and away from said outlet, said valve body and outlet being sized to allow said outlet Characterized in that the inner surface of the chamber and the outer surface of the valve body are shaped and arranged to move toward the outlet when the valve body is moved toward the outlet, The cross-sectional area of the flow passage and the flow passage flowing between the valve body and the chamber are reduced and at the same time for flowing from the inlet and in a flow path between the valve body and the chamber The area is increased, and when the valve body is moved away from the outlet movement, the situation is reversed, thereby changing the balance of the pressure acting on the valve body caused by the flow rate.