AVS solenoid valve EGV-211-A79-3/8

As an important industrial control component, the performance and characteristics of AVS solenoid valves vary depending on the manufacturer and application field. The following is a detailed introduction to AVS solenoid valve:

1、 Manufacturers and product categories

• AVS FinlandThe company focuses on producing various types of valves and actuators, including ball valves, butterfly valves, globe valves, solenoid valves, etc. Its solenoid valve products are widely used in many fields such as papermaking equipment, petrochemicals, power energy, metallurgy and minerals, food and beverage, natural gas, environmental protection, water treatment, HVAC, etc. These solenoid valves have the characteristics of high quality, corrosion resistance, wear resistance, and compression resistance. They can be equipped with corresponding pneumatic and electric actuators for pressure control, as well as limit switches or positioners, providing safer and more reliable automation operations.

• German AVSGerman AVS company also produces solenoid valve products, such as AVS Romer solenoid valves, which are characterized by small dead space, easy disassembly, insensitivity to pollution, and thermal isolation between the solenoid and the medium. In addition, the two position two-way solenoid valve of AVS in Germany is also equipped with an emergency manual operation device as standard, with a position indicator, suitable for applications in the food industry and medical technology fields, as well as for corrosive media.

2、 Working principle

Taking the solenoid valve in the Audi valve lift control system (AVS) as an example, its working principle is as follows:

• The sliding of the cam block on the camshaft is achieved by inserting the guide pin into the spiral groove on the cam block.

• As the main actuating element, the insertion of the guide pin has timing and position requirements, and this action relies on an electromagnetic valve to push it.

• The AVS solenoid valve does not use a traditional structure. Its moving mechanism uses armature plates with permanent magnets, which are lightweight, eliminate return springs, and use low resistance electromagnetic coils. When excited, the electromagnetic field generated is more powerful, which can achieve faster movement speed of the guide pin.

• When the electromagnetic coil is excited, the acceleration of the guide pin can reach 100g, and the extension time is 18-22ms. In order to protect the armature plate from shattering the magnet when it hits the base, there is a soft damping ring between the armature plate and the permanent magnet to achieve buffering.

• After the metal pin is pushed out, the engine ECU disconnects the power supply of the solenoid valve, and the position of the metal pin relies on the permanent magnet to adhere to the base of the solenoid valve. As the cam block rotates, the rear section of the guide groove uses mechanical force to push the metal pin back, and the solenoid valve returns to its original position.

3、 Characteristics and advantages

• High quality and durabilityAVS solenoid valves are made of high-quality materials and excellent processes, with excellent corrosion resistance, wear resistance, and extrusion performance, and can operate stably for a long time in harsh working environments.

• Flexibility and customizabilityFor example, the German AVS Romer solenoid valve can achieve different functions through different combinations, such as switching, pressure reduction, single/bidirectional flow, overflow, flow control, etc. At the same time, the valve core can be customized with multifunctional combination valve bodies to meet specific customer needs.

• Safety and reliabilityAVS solenoid valves are designed with full consideration of safety and reliability factors, such as standard emergency manual operation devices, position indicators, etc., to ensure that measures can be taken quickly to protect equipment and personnel safety in emergency situations.

• Easy to maintain and upkeepAVS solenoid valve has the characteristics of easy disassembly and cleaning, which facilitates users' daily maintenance and upkeep work, reduces usage costs, and improves the service life of equipment.

4、 Application Fields

AVS solenoid valves are widely used in various fields such as industrial automation, mechanical equipment, automotive manufacturing, petrochemicals, and food processing. In these fields, AVS solenoid valves play an important control role, ensuring smooth production processes and stable and reliable product quality.

In summary, AVS solenoid valve is a high-performance, high-quality, reliable and durable industrial control component with broad application prospects and market demand.

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