HG-031/011/033/034 Series HG-031/75 23 HG-031/100 23 Hydraulic Modular Reducing Proportional Control Reducing Valve

The components that achieve various logic functions by changing the direction of the air flow and switching on and off can be divided into two types: intermittent control and continuous control. In intermittent control systems, pressure control valves, flow control valves, and directional control valves are usually used to achieve program action; In a continuous control system, in addition to using pressure and flow control valves, servo and proportional control valves are also used to continuously control the system. Directional control valve: A control valve used to change the direction or on-off of air flow. Operation mode of directional control valve: electromagnetic pneumatic control, manual mechanical type Directional control valve Reversing valve, one-way valve, shuttle valve, dual pressure valve, quick exhaust valve, stop valve The reversing valve is divided into electromagnetic valve, pneumatic valve, manual valve, and mechanical valve according to the operation mode; The reversing valve is divided into two position two way valve, two position three way valve, two position four way valve, two position five way valve, three position four way valve, three position five way valve

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According to the flow direction of the air flow in the valve
The pneumatic control valve can be divided into one-way type and reversing type according to the flow direction of the air flow in the valve
Control valves that only allow air flow in one direction are called one-way control valves, such as one-way valves, shuttle valves, dual pressure valves, and fast exhaust valves.
Control valves that can change the direction of airflow flow are called directional control valves, such as electromagnetic directional valves and pneumatic directional valves.
In order to reverse the valve, a certain amount of axial force must be applied to the valve core
Move it quickly to change the position of the valve core. This method of obtaining axial force is called the operation mode or control mode of the directional valve.
Generally, it can be divided into four operation modes: pneumatic, electromagnetic, manual, and mechanical.
2. Classification by control method
Manual control is generally manual control, button type, handle type with positioning, and pedal type.
Mechanical control: control shaft, pulley type, lever type, one-way pulley type, spring return type.
Pneumatic control: direct acting, pilot operated.
Electromagnetic control: single electronic control, dual electronic control, pilot type dual electronic control, with manual control.
(1) Electromagnetic control: When an electromagnetic coil is energized, the static iron core generates electromagnetic attraction on the moving iron core, causing the valve to switch to change the direction of airflow. This is called an electromagnetic controlled directional valve, or electromagnetic valve for short. This valve is easy to achieve electrical joint control and remote operation, so it is widely used.
1. Electromagnetic operation

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