Challenges of Using Airtac 4V210-08 in Low-Pressure Circuits

The Low-Pressure Wall: Why 4V210-08 Struggles Below 21 PSI

If you are designing a low-pressure air system (e.g., for delicate lab work), the Airtac 4V210-08 may not be the right tool for the job.

1. The Pilot Wall

Because it is an internally piloted valve, the 4V210-08 uses the pressure from Port P to shift the spool. Below **0.15MPa (21 PSI)**, the force is insufficient to overcome the seal friction.

2. The Alternative

If you must work with pressures as low as 0.05MPa, you should choose the **External Pilot** version of the Airtac 4V series. This allows you to provide a dedicated 0.5MPa air line to the pilot while controlling a low-pressure main circuit. Contact Airtac-Shop.com for custom pilot configurations.