How to Select the Right Airtac Solenoid Valve Model? A Selection Guide

 

I. Why Solenoid Valve Selection is Crucial

In automated equipment, the operational stability of a solenoid valve directly impacts control precision and production efficiency. Improper selection can lead to insufficient air pressure, action delays, or even system failure. Therefore, understanding selection principles when purchasing Airtac solenoid valves can help businesses avoid waste and malfunctions.

II. Core Factors for Selection

  1. Working Medium Type

    Determine if the air source is compressed air, an inert gas, or a special process gas. Different media require different seal materials, such as NBR (rubber), FKM (fluoro-rubber), or metal seals.

  2. Voltage and Port Specifications

    Airtac solenoid valves are primarily available in DC24V, AC110V, and AC220V versions. Port sizes (interface types) are available in 1/8”, 1/4”, 3/8”, etc., and must match the equipment's piping.

  3. Orifice Size and Flow Rate Requirements

    Calculate the required flow rate based on the cylinder's diameter and operating speed, then select a valve model with the appropriate orifice size. Insufficient flow will cause sluggish pneumatic action.

  4. Control Method

    This includes single solenoid control or double solenoid control structures. Single control is suitable for simple operations, while double control is used to maintain a stable valve position (detented).

  5. Installation and Maintenance Convenience

    Compact series like the AirTac 4V210 or 4V310 are easy to install, and their standardized design matches various pneumatic accessories.

III. Comparison of Common Airtac Solenoid Valve Models

Model Port Size Control Method Flow Rate Application Scenario
4V210 1/8” Single Solenoid Medium Flow General industrial automation equipment
4V310 1/4” Double Solenoid Medium Flow Robotic arms, packaging equipment
4V410 3/8” Double Solenoid High Flow Large assembly or die-casting systems

Engineers should decide on the model based on cylinder size, action frequency, and installation space.

IV. Practical Selection Tips

  • For equipment that needs to maintain the valve position for extended periods, using a double solenoid (detented) model is recommended.

  • If equipment space is limited, choose compact miniature valves.

  • When used in high-frequency control equipment, prioritize models with a response time of ≤0.05s.

  • For multi-valve scenarios, you can select an Airtac integrated manifold (valve bank), which simplifies management and maintenance.

V. Common Selection Pitfalls

  1. Ignoring Voltage Match: Incorrect voltage will burn out the coil.

  2. Disregarding Flow Rate: An orifice that is too small will cause insufficient air pressure.

  3. Mixing Interface Standards: Leads to complex installation and leakage problems.

  4. Not Checking Air Source Cleanliness: Impurities can easily clog the valve body.

VI. Selection Recommendation Summary

Correct model selection can save significant maintenance costs during equipment operation. The Airtac solenoid valve series covers a wide range of specifications and voltages, meeting control needs from light equipment to large-scale production systems. It is recommended to carefully review the parameter tables and consider the actual working pressure and frequency before purchasing.

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