Pressure and flow control and application principle of Manifold Block hydraulic valve
Pressure and flow control and application principle of Manifold Block hydraulic valve.
According to its use, Manifold Block hydraulic valve can be divided into directional valve and one-way valve. The latter only allows the fluid to connect unidirectional in the piping during operation, while the former can change the on-off relationship between different piping of the hydraulic valve.
According to the number of working positions of the valve core in the valve body, Manifold Block hydraulic valve can be divided into two, three, etc. According to the number of controlled channels, it can be divided into two, three, four, five, etc. According to the driving mode of the valve core, it can be divided into manual, electric, hydraulic, etc.
The output pressure and flow of Manifold Block hydraulic valve change constantly with the input, and the electro-hydraulic proportional control valve can be divided into electro-hydraulic proportional control valve, electro-hydraulic proportional direction control valve and electro-hydraulic proportional control valve according to the function.
Manifold Block hydraulic valve adjusts the flow by regulating the area of the orifice between the valve core and the valve body and its local resistance, so as to control the speed of the actuator. After adjusting the orifice area, the throttle valve in Manifold Block hydraulic valve can make the movement speed of the actuator with small load pressure change and low movement uniformity basically stable.
Speed control valve is in the load pressure change is able to keep the throttle valve inlet and outlet pressure difference for a fixed value. After adjusting the orifice area, whether the hydraulic valve is pressed or not, it can well keep the flow through the throttle valve unchanged, so as to realize the change of component movement speed and temperature.
In order to maintain the safety and reliability of Manifold Block hydraulic valve, before disassembling the Manifold Block hydraulic valve, the handle of the valve should be moved in all directions to relieve the pressure in the system; Lock or lower the height of the working mechanism of all hydraulic transmission devices; Power off to avoid accidental system start or tool flying.
Manifold Block hydraulic valve is mainly used for what aspects
What are hydraulic valves mainly used for?
According to the current situation, Manifold Block hydraulic valve can be divided into many types according to different situations and different uses of hydraulic valves. This paper focuses on one of them. The hydraulic valve assembly consists of a plug, a control cover, a pilot control valve and an integrated block.
The main contents and functions of these four parts are described below. Its structure can be regarded as a slide valve or a cone valve, the role of this part of the components is very important, they can well control the direction of the pipeline or other places of oil flow, flow rate and pressure. Cartridge valve control panel can effectively control the performance of the real-time, mainly because it has a lot of among the composition of the pilot control components, these components can adjust or control the performance of the cartridge valve, the control panel basic even a bridge, connects the control valves and components, and the pilot control valve will also choose to install on it. Two-way insert valve is currently more common in China, from the economic point of view, its components and the necessary pipeline connection is less, easy to integrate, convenient, suitable for mass production, greatly reduce the production cost. From the perspective of use, its structure determines that it will be small in size so it is very convenient, and its control switch speed is very high so it is very efficient and reliable in use. In addition, it can be controlled with high power. This advantage is reduced pressure loss and heat loss. Finally, the two – way cartridge valve is unaffected by reversing. The main function of the two – way cartridge valve is to connect the oil route or control its disconnection.