What are the advantages of directional valves for automated cylinders?

- Sep 29, 2019-

The important component of the automated cylinder during operation is the directional control valve. Which direction is the directional control valve? What are the commonly used valves? What are their respective advantages? Today we will share the basic knowledge for your reference. Directional Control Valves for Automated Cylinders Definition: A control valve that changes the direction of gas flow or is turned on and off is called a directional control valve. If the air is supplied to one end of the cylinder and exhausted from the other end, and vice versa, the air is exhausted from the other end, and one end is exhausted. In the change of the flow direction, the directional control valve is used.


Classification of directional control valves for automated cylinders: There are quite a variety of directional control valves, and it is easier to understand their characteristics to better understand their classification. Classified by control method, it can be divided into electromagnetic control, air pressure control, manual control, and mechanical control. The definition and advantage of the electromagnetic control directional valve of the automatic cylinder: the directional valve of the electromagnetic control is also called the electromagnetic valve, mainly including: 2v025-08 series solenoid valve, 4V series three-position five-way solenoid valve, 3V series two-position three-way solenoid valve, 3V1 series solenoid valve VF series solenoid valve, pulse solenoid valve.


Solenoid valve working principle: When the electromagnetic control electromagnetic coil is energized, the static iron core generates electromagnetic attraction force to the moving iron core, and the electromagnetic force is used to switch the valve core to change the flow direction of the valve, which is called electromagnetic control reversing valve. Advantages of Solenoid Valve: This valve is easy to realize electro-gas combined control and complex control, and can realize long-distance operation, so it is widely used.


The air pressure control directional valve of the automatic cylinder is also called the air control valve. It mainly includes: 4A series two-position five-way vent control valve, Q22HD series air control valve, the working principle of the air control valve: the air pressure control relies on the air pressure to make the spool switch to change The valve in the direction of the air flow is called a pneumatic control directional valve. Advantages of air control valve: in flammable, explosive, humid, dusty, strong magnetic field, high temperature and other harsh working environment. And in an environment where electromagnetic control cannot be used, the work is safe and reliable, and the life is long.

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Disadvantages of the air control valve: However, the switching speed of the air pressure control valve is slower than that of the electromagnetic valve. The human control valve is divided into manual valve and foot valve, mainly including: 4HV series hand rotary valve, HV series hand rotary valve, gas source manual rotary valve Q34R8-8/K34R8-8, 3R series hand valve, 4R series hand Valve, XQ series hand valve. The working principle of the human control valve: the manual control relies on manpower to make the spool valve of the reversing valve called the manual control reversing valve. It can be divided into manual valves and foot valves.


Advantages of the human control valve: Compared with other control methods, the human control has the characteristics of being able to operate according to the will of the person, the frequency of use is low, and the diameter of the valve is small. Disadvantages of the human control valve: the movement speed is slow and the operation force is not suitable. In manual pneumatic systems, manual control valves typically operate pneumatic actuators directly. In semi-automatic and automatic pneumatic systems, it is often used as a signal valve.


Mechanical control directional valve definition and advantages of automatic cylinder: mechanical valves mainly include: S3R mechanical valve, MV series mechanical valve, JMJ series mechanical valve. The working principle of the mechanical directional control valve: the mechanical control cam, the collision block or other mechanical external force pushes the spool to operate, and the valve that realizes the reversing is called the mechanical control reversing valve. This type of valve is often used as a signal valve.


Advantages of mechanical directional control valve: It can be used for occasions with high humidity, dust and oil, and it is not suitable to use electric travel switch. The disadvantage of mechanical directional control valve: but it should not be used in complicated control devices.