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Nuoguan proportional pressure valve can be divided into pressure control valve / flow control and directional control valve

The Nuoguan proportional pressure valve control is mainly used for open loop control; the output of the proportional control valve is proportional to the input signal, and the magnitude of the magnetic force generated by the electromagnetic coil in the proportional control valve is proportional to the current.

In the traditional type of hydraulic control valve, the Novo crown proportional pressure valve can only control the hydraulic pressure. For example, the pressure valve operates at a certain set pressure, the flow valve maintains the set flow rate, and the directional valve pair Switching on/off of the flow direction. As a result, the system functions of these control valves are subject to some limitations. As technology advances, many hydraulic systems require flow and pressure to vary continuously or proportionally with changes in the control valve input signal. Although the hydraulic servo system can meet its requirements and has high precision, for most industries, they do not require such a high quality system, and they hope that under certain conditions of low control performance, the price is low. The work is reliable and the maintenance is simple, so the proportional control valve is developed in this context.

Nuoguan proportional pressure valves can be divided into three types: pressure control valve, flow control and directional control valve.

Pressure control valve: The manual adjustment device that replaces the pilot relief valve with a proportional solenoid valve becomes a pilot proportional relief valve whose hydraulic pressure is continuously or proportionally controlled by the input signal.

Flow control valve: The proportional valve is used to replace the throttle valve of the throttle valve or the speed control valve, and the throttle opening of the throttle valve or the speed control valve is controlled by the input signal, and the output flow rate can be controlled continuously or proportionally. Therefore, the opening of the orifice can be determined by the voltage of the input signal.

Directional control valve: The general solenoid valve of the proportional solenoid valve instead of the directional valve constitutes a direct-acting proportional directional valve. The sliding shaft can be changed not only, but also the stroke of the transposition can be changed continuously or proportionally, so the communication between the ports is connected. The oil area can also vary continuously or proportionally, so the proportional directional control valve not only controls the direction of movement of the actuator but also controls its speed.

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