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Working Principle Of Hydraulic Valve

Ningbo E.H Hydraulic Co.,Ltd | Updated: Sep 26, 2017

The hydraulic valve is a kind of automatic element which is operated by the pressure oil, it is controlled by the pressure oil of the distribution valve, commonly used in combination with electromagnetic pressure valve, can be used for long-distance control of the power station oil, gas, water pipe system of the break. Commonly used in clamping, control, lubrication and other circuit. Hydraulic Valves There are direct and pilot type of the division, more use of the pilot type. The action hydraulic valve is used to control the flow direction of oil in the hydraulic system or to regulate its pressure and flow, so it can be divided into three categories: directional valve, pressure valve and flow valve. A valve with the same shape can be different because of the mechanism of action, Hydraulic Valves and have different functions. pressure valves and flow valves control the pressure and flow of the system using the throttling effect of the flow cross-section, the directional valve is used to control the flow direction of the fluid. That is to say, although there are various types of hydraulic valves, they maintain some of the basic common points.

The role of hydraulic valve: used to reduce and stabilize the system in a branch of the oil pressure, often used in clamping, control, lubrication and other circuit. Hydraulic Valves It has the direct type, the forerunner type and the superposition type cent.

The hydraulic valve is used to control the flow direction of oil in the hydraulic system or to regulate its pressure and flow, so it can be divided into three categories: directional valve, pressure valve and flow valve. A valve of the same shape, can be different because of the mechanism of action, Hydraulic Valves and have different functions. pressure valves and flow valves control the pressure and flow of the system using the throttling effect of the flow cross-section, the directional valve is used to control the flow direction of the fluid. That is to say, although there are various types of hydraulic valves, they maintain some of the basic common points.

Working principle of hydraulic valve

The basic structure of the hydraulic valve mainly includes the valve core, the valve body and the driving valve core in the valve body to do the relative movement control device.   

The main form of the spool is the slide valve, the cone valve and the ball valve, and the valve body is apart from the valve body hole or seat hole which is matched with the valve core. There is also the inlet and outlet of the external tubing and the outlet; the device that drives the valve core in the valve body can be a hand-adjustable mechanism, or a spring or electromagnet, and some occasions are driven by liquid pressure. Hydraulic Valves In the working principle, the hydraulic valve is using the valve core in the valve body relative movement to control the valve mouth of the on-off and opening size, in order to achieve pressure, Hydraulic Valves flow and direction control. Hydraulic valve work, the valve size of all valves, valve inlet, the pressure difference between the outlet and the flow through the valve of the relationship between the orifice flow formula (q=ka·δp m), but the various valve control parameters are different.


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