How to Properly Select AirTAC Solenoid Valve Products

In the field of industrial automation, Airtac solenoid valves have gained widespread recognition for their high cost-performance ratio and reliability. However, navigating their vast and complex model system can be a challenge for many engineers and purchasing agents. This article will provide you with a clear, systematic guide to help you precisely select the right model, avoiding unnecessary costs and hassles.

 

Before You Buy: The "Three Questions"

 

Before you start browsing through model catalogs, ask yourself three key questions. This will not only narrow down your options but also ensure the final choice is a perfect fit for your application.

  1. What's the purpose? What do you need the solenoid valve to control? Is it a single-acting or double-acting cylinder? Is it for precise clamping or high-speed sorting? Defining the application scenario is the first step.

  2. What's the fluid medium? Most industrial solenoid valves are used to control compressed air, but if your application involves water, oil, inert gases, or any corrosive media, you must select a model with special materials or seals.

  3. What's the working environment like? Consider factors like temperature, humidity, dust, and vibration. These will determine whether you need a standard model or one with a higher protection rating (like IP65) or special resistance.

 

Reading the Model Number: The "Code" of Airtac Solenoid Valves

 

Airtac's model numbers are typically a series of letters and numbers that represent different technical parameters. Understanding this "code" is crucial for a successful selection.

Let's take the most common model, 4V210-08, as an example:

  • 4V: This indicates the solenoid valve belongs to the 4V series, which is a two-position, five-way valve. This is the most common type used to control the extension and retraction of double-acting cylinders. If you need to control a single-acting cylinder, you should choose a 3V series (two-position, three-way).

  • 2: This usually represents the valve's port size series. In Airtac's product system, different numbers correspond to different sizes, such as the 2 series (larger port size) or the 1 series (smaller port size), etc.

  • 10: This indicates the control method is single electrical control. It has only one solenoid coil; when energized, it switches positions, and when de-energized, it returns to its original position via a spring. If the model number were 20, it would indicate double electrical control, which has two coils and maintains its last position when de-energized, making it suitable for applications requiring position memory.

  • 08: This typically represents the port thread size. 08 signifies G1/4. Choose the appropriate port size based on your pneumatic tubing diameter.

 

Selecting Based on Specific Needs

 

Once you've mastered the model number rules, you can filter based on these key dimensions.

 

1. Control Method

 

  • Single Electrical Control (e.g., 4V210): Simple structure and lower cost, suitable for controlling basic reciprocating motion of cylinders.

  • Double Electrical Control (e.g., 4V220): Has a memory function and maintains the cylinder's position when power is lost, suitable for applications requiring power-off protection or precise positioning.

 

2. Additional Features

 

  • High Frequency Response: If your equipment requires rapid switching (e.g., dozens of times per second), choose a solenoid valve designed for high-frequency applications, such as the VFS or VSS series, which have faster response times and longer service life.

  • Low Power Consumption: For battery-powered devices or those with strict energy consumption requirements, choosing a low-power model can effectively extend operating time and reduce running costs.

  • Special Valve Positions: If you need the cylinder to stop or hold pressure at an intermediate position, consider a three-position, five-way solenoid valve (like the 4A series), which offers "center stop" or "center exhaust" functions.

 

3. Electrical Parameters and Connections

 

  • Voltage: Must match your control system's voltage. Common voltages include DC12V, DC24V, AC110V, AC220V, and so on.

  • Wiring Method: Common types are lead wire and plug-in (DIN connector). The latter is easier to install and maintain.

 

Summary and Purchasing Advice

 

When purchasing an Airtac solenoid valve, always follow the principle of "needs first, then parameters." First, define your application scenario, then match the key parameters using this guide. If your project is a new design, it's highly recommended to consult with an official Airtac technical support representative or an authorized distributor. They can provide professional selection advice and ensure you purchase a genuine product.

The correct selection not only ensures efficient equipment operation but also helps you avoid downtime, repairs, or unnecessary costs caused by a wrong choice.

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