What is the principle of the hydraulic valve manifold block?
Hydraulic valve manifold block is a control element in the hydraulic system, mainly used to control the pressure, flow and flow direction of the fluid in the hydraulic system, so as to make it meet the requirements of various types of executive elements of different actions.
According to its role can be divided into three categories of directional control valves, pressure control valves and flow control valves. Accordingly, these valves can also be composed of three basic circuits: direction control circuit, pressure control circuit and speed control circuit.
Depending on the control methods, we can divide hydraulic valves into ordinary hydraulic control valves, servo control valves, and proportional control valves. The different installation forms can also be divided into tube, plate and cartridge type and so on several kinds. The two-way cartridge valve is by the cartridge, control cover, pilot control valve, integrated block body, four parts.
To two-way cartridge valve valve block as an example to explain ~! As shown:
1、Cartridge
Also known as the main valve assembly, is a combination of four parts: spool, sleeve, spring and seal. Its main function is to control the direction, pressure and flow of the main oil circuit.
2、Control cover plate
It is by the cover plate embedded micro pilot control element and other parts and other combinations. This component mainly fixes the cartridge, ensures the sealing condition, communicates between the control oil circuit and the main valve control chamber, and implements the control.
3、Pilot control valve
You can install the smaller specifications of the control valve directly on the integrated block body or in the control cover plate. This valve implements the main valve cartridge action control. Mainly ¢ or ¢ 10 diameter standard solenoid valve, proportional regulator, adjustable damper, buffer and so on.
The main valve specifications can be larger according to the need to use a smaller two-way cartridge valve for secondary control. You can interchange solenoid valves that conform to ISO and national standards with similar products. These products may come from both domestic and international sources. You can install them accordingly.
4、Integrated block body
Used to install cartridge, control cover and other control valves, communication between the main oil line and control oil line block.
Finished the basic shape of the valve block, the following and then provide a few TIPS to you, feel useful to remember ~!
1, In designing a hydraulic valve manifold block, keep the oil circuit as simple as possible. Also, minimize the use of deep holes, slant holes, and process holes. Ensure that the design matches the aperture and flow of the valve block. Pay special attention to the through hole; it must have a sufficient through-flow area.
Pay attention to the direction and location of the inlet and outlet. Ensure these match the overall system layout and pipeline connection forms. Consider the installation and operation process. Components that require vertical or horizontal installation must meet the necessary installation requirements.
2, for the work required to regulate the components, in the design need to consider the convenience of its operation and observation. Set relief valves, speed control valves, and other adjustable components in positions accessible for adjustment. This placement makes operation easier.
3, Often overhaul the components and key components, such as proportional valves and servo valves. These components should be located on or outside the valve block. This arrangement facilitates dismantling and other operations. In addition, the valve block design should include a sufficient number of pressure measurement points. These points are necessary for the debugging of the valve block.
For valve blocks weighing more than 30 kg, set up a screw hole for lifting. However, it is necessary to meet the requirements of the premise. The use of the valve block volume should be as small as possible.
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