2. In principle, all hydraulic valves use the relative movement of the valve plug in the valve body to control the opening and closing of the valve port and limit or change the flow and stop of the oil. 3. As long as there is also flow through the valve hole, pressure drop and temperature increase will occur. The flow through the valve orifice is related to the flow area and the pressure difference between the valve and the valve. 4. In terms of function; the valve can not do work outside, just to meet the requirements of the actuator pressure, speed and commutation. 5. In terms of parameters, one is the specification parameter, which indicates the size of the valve and the scope of its use. It is generally expressed by the nominal pass. The size of the through-flow capacity of the nominal valve representing the valve corresponds to the rated flow of the valve. The specifications of the tubing linked with the inlet and outlet of the valve shall be matched with the passage of the valve; but the performance parameter represents the functional characteristics of the valve, such as Rated pressure, it is the high working pressure allowed by normal operation of hydraulic valve/news_show_141.html High Pressure Grouting Drilling Rig High Pressure Grouting Drilling Rig has excellent technical performance of low energy consumption, high efficiency, convenient transportation and field construction.
The whole vehicle action mechanism is realized by the hydraulic system, and only the source of the wind consumed by the impactor is used in the air compressor. The purchase cost of the whole set of equipment is greatly saved in the selection. The slewing mechanism adopts a new type of motor slewing head, so that it can maintain a strong rotary torque output for open-air blasting large-hole rock drilling operations. When the air compressor is towed, it has mobile flexibility and strong climbing ability, which is suitable for rugged sites. Features of convenient operation and perforation displacement.
The drilling rig has high perforation efficiency, easy maintenance and high reliability. It is an ideal drilling rig for rock drilling operations in mining, highway, water conservancy, and power station construction.
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1. In the structure; all hydraulic valves are composed of valve core, valve body and components that drive the valve body to move the valve body firstly.
Although there are different types of hydraulic valves, they still have the following common features