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Partial Performance Of Hydraulic Valve Casting

Yutung Industrial Limited | Updated: Sep 09, 2017

     A component used in hydraulic fluid to control the flow and direction of a liquid pressure ﹑. The control pressure is called the pressure control valve, the control flow is called the flow control valve, the control ﹑ breaks and the flow direction is called the directional control valve. Pressure control valve: According to the use of the overflow valve ﹑ pressure reducing valve and sequential valves. Overflow valve: Can control the hydraulic system to maintain the constant state when the pressure is reached. The overflow valve used for overload protection is called a safety valve. When the system fails and the pressure rises to a limit that may cause damage, the valve opens and overflows to ensure the safety of the system. Pressure relief valve: Can control the branch circuit to get lower than the main circuit of the stability of oil pressures.Hydraulic Valve Casting
     The pressure relief valve according to its control function is different, can be divided into the fixed value pressure reducing valve (output pressure is constant value) ﹑ fixed difference pressure reducing valve (input and output press difference is fixed value) and the fixed ratio relief valve (input and output pressure to maintain a certain proportion). Sequential valve: Can make an executive component (such as hydraulic cylinder ﹑ hydraulic motor, etc.) after the action, and then in order to make other components action. The pressure produced by the pump first pushes the hydraulic cylinder 1 movement, while the inlet port of the sequential valve acts on area A, when the hydraulic cylinder 1 movement completely becomes, the pressure rises, the effect in area A's upward thrust is larger than the spring's adjustment value, the valve core rises causes the oil inlet and the outlet mouth to be interlinked, causes the hydraulic cylinder 2 movement.Hydraulic Valve Casting
     Flow control valve: By adjusting the throttle area between the valve core and the valve body and the local resistance produced by it, the flow is adjusted to control the movement speed of the actuator. Flow control valve is divided into 5 kinds by use. Throttle valve: After adjusting the throttle area, the movement speed of the actuator which can make the load pressure change little and the motion uniformity requirement is basically stable. Speed control valve: In the load pressure changes can maintain the throttle valve import and export pressure difference is fixed value.Hydraulic Valve Casting
     In this way, after the throttle area is adjusted, no matter how the load pressure changes, the speed control valve can maintain the flow through the throttle valve, so that the movement speed of the actuator is stable. Shunt valve: Regardless of the load size, can make the same oil source of two components to obtain equal flow of the equivalent shunt valve or synchronous valve, the proportional distribution of the flow of the proportional shunt valve. Set flow valve: The effect is opposite to the shunt valve, the flow into the flow valve is proportionally distributed. Shunt set-flow valve: Both shunt and set-flow valve functions.Hydraulic Valve Casting