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Wide Versatility Of Hydraulic Valves

Ningbo E.H Hydraulic Co.,Ltd | Updated: Oct 11, 2017


The hydraulic valve includes the valve core, the body and the drive spool in the valve body to make the relative motion device. In the hydraulic system is used to control the flow of fluid pressure, flow and direction, to ensure that the implementation of components in accordance with the requirements of the work. Hydraulic Valves belongs to the control element.

Basic working principle of hydraulic valve: Using the valve core in the valve body as relative movement to control the valve mouth and the size of the valve mouth, to achieve pressure, Hydraulic Valves flow and direction control; and the flow through the valve mouth and the valve mouth before and after the pressure difference and valve area, always meet the pressure flow equation.

Characteristics of Hydraulic Valves

1. The movement is nimble, the work is stable and reliable, the impact, the vibration and the noise are as small as possible.

2. The resistance loss of the oil flow through the valve is small.

3. The sealing is better and the leakage is small.

4. Simple and compact structure, small size, large versatility, long life.

Hydraulic valve is used to control the flow direction of oil in the hydraulic system or adjust its pressure and flow, so it can be divided into directional valve, pressure valve and flow valve three categories. A valve of the same shape can have different functions because of the different mechanism of action. Pressure valves and flow valves control the pressure and flow of the system using the throttling effect of the flow cross-section, Hydraulic Valves while the directional valve controls the flow direction of the oil by using the change of the channel. That is to say, although there are various types of hydraulic valves, Hydraulic Valves there are some basic points of common between them.

Hydraulic Valve, is a kind of pressure oil operation automation element, it is controlled by the pressure valve, usually with the solenoid valve combination, can be used for long-distance control of hydropower station oil, gas, water pipe system of the break. Often used for clamping, control, lubrication and other oil circuits. There are direct type and pilot type of the division, more use of pilot. Hydraulic Valves According to the control method can be divided into manual, electric control, liquid control.

Hydraulic Valve Direction Control valve pressure Control valve flow control valve Direction Control valve Direction Control valve Control fluid flow direction or liquid flow in the hydraulic system and the break-through valve directional valves two-way hydraulic lock valve The working principle of the reversing valve utilizes the relative motion of the valve core and the valve body to make the oil circuit connect, Hydraulic Valves shut off or change the direction of the flow, Thus realizes the hydraulic actuation component and the driving mechanism.


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