Hydraulic Directional Valve for Sale

Elephant Fluid Power has completed the cooperation with many customers with hydraulic directional valves, and with high-quality products and thoughtful after-sales service has won unanimous praise, hydraulic directional valves are widely used in the market, especially in some mechanical equipment.

Hydraulic directional valve is widely used in petroleum, chemical and metallurgical industries, is an important fluid reversing equipment, by changing the relative position of the sealing assembly in the valve body, so that the valve body channels are connected or disconnected, so as to control the fluid reversing and start and stop. The hydraulic directional valve has accurate action, high degree of automation, stable and reliable work, but it needs to be equipped with a drive and cooling system, and the structure is more complicated; The disc structure is relatively simple and is mostly used in production processes with small flow rates. Hydraulic directional valve is used to control the reversing of components, is an indispensable directional control valve in hydraulic system.

How to use hydraulic directional valves correctly:

1. The appropriate reversing valve diameter should be selected according to the flow rate required to be controlled. If the diameter of the valve is greater than 10mm, a hydraulic directional valve or an electro-hydraulic directional valve should be selected. Do not exceed the rated pressure and flow limit specified in the manufacturer's sample when used to avoid poor operation.

2. According to the principle of coordinated connection and installation methods of various hydraulic valves in the entire hydraulic system, select the appropriate installation and connection method.

3. Select the appropriate reversing valve operation and control mode according to the requirements of the degree of automation and the working environment of the host. For example, the hydraulic system of industrial equipment, because the work site is fixed and has a stable power supply, so it is usually necessary to choose electromagnetic reversing valve or electro-hydraulic dynamic reversing valve. In the field work hydraulic equipment system, the main engine often needs to replace the work site and there is no power supply, so it is necessary to consider the use of manual directional valves. For example, in the hydraulic equipment system working under harsh environment (such as humidity, high temperature, high pressure, corrosive gas, etc.), in order to ensure the safety of personal equipment, you can consider the choice of pneumatic hydraulic reversing valve.

4. According to the working requirements of the hydraulic system, select the appropriate spool valve function and alignment mode.

5. For the electromagnetic directional valve, select the appropriate solenoid according to the power supply, service life, switching frequency, safety characteristics, etc.

6. The pressure of the oil return port T cannot exceed the specified allowable value.

7. The two solenoids of the double solenoid solenoid valve cannot be energized at the same time, and the actions of the two solenoids should be interlocked when designing the electronic control system of hydraulic equipment.

8. Hydraulic directional valve and electro-hydraulic directional valve should select appropriate pilot control oil supply and drainage mode according to the needs of the system, and decide whether the selected valve is equipped with a damping regulator or stroke adjustment device according to the working performance requirements of the main engine and hydraulic system.

9. When the electro-hydraulic directional valve and the hydraulic directional valve are supplied with oil internally, for those three-dimensional and four-way electro-hydraulic directional valves that unload the main oil circuit in the middle position, such as M, H, K and other spool valve functions, measures should be taken to ensure the minimum control pressure in the neutral position, such as installing a back pressure valve on the oil return port.

Correct use of hydraulic directional valve can greatly extend its service life, if improper use of the hydraulic directional valve cause damage do not worry, Elephant Fluid Power has the best quality after-sales service, has a one-year warranty, and will also provide free technical support during this period.

Hydraulic directional valve diagram

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Hydraulic directional valve symbols

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