The italic hydraulic control valve is also an automatic type valve, which is basically consistent with the operating principle, structure and diaphragm type hydraulic control valve. It have the same advantages and functions of the diaphragm type,its sensing part is also a diaphragm, the main difference is the italic type is used in the main body, such making that the class than the diaphragm and piston valve flow resistance coefficient of smaller, more traffic. Moreover, the valve is better adjusted by improving the structure of the cavity and the valve structure.
The structure of italic diaphragm is different from the diaphragm type hydraulic control valve described earlier. As shown in the figure above, the lower cavity of the diaphragm chamber is designed as an independent cavity, which can be used to select whether or not it is connected to the main valve cavity. In this way,not only can the diaphragm chamber be controlled separately, but the external pressure source can be used to drive the valve's switch, without the restriction of media pressure, and can realize the function of easing and closing.
The upper and lower diaphragm chamber, diaphragm assembly, valve stem, disc and other parts can be removed and removed, which brings great convenience to the maintenance.
The valve stem of italic hydraulic control valve adopts the middle section guide,avoiding the disadvantages of different heart on both ends of the stem.