Menu
Your Cart

Pneumatic Automatic Valves

Automatic Airflow Control for Safer, Faster Pneumatic Circuits

Automatic pneumatic valves perform functions such as one-way flow control, rapid exhaust and circuit protection without requiring direct operator input. PneumaticHub supplies check valves, non-return valves and quick exhaust valves for industrial compressed air systems.

These compact components can improve circuit behavior by preventing reverse flow, holding pressure in selected lines or exhausting air close to an actuator to increase speed. Correct sizing is important to avoid unwanted pressure drop or restricted exhaust flow.

Download Product Datasheet

Automatic Valve Functions

  • Check and non-return valves for one-way airflow
  • Quick exhaust valves for faster cylinder exhaust
  • Circuit protection and pressure isolation functions
  • Compact in-line installation options

Why Use Automatic Pneumatic Valves?

  • Automatic valves react to pressure and flow conditions inside the pneumatic circuit. They can perform useful logic and airflow functions without electrical wiring or manual actuation.
  • Quick exhaust valves are especially useful where cylinder speed is limited by exhaust air traveling back through a directional valve and long tubing.

Common Applications

  • Cylinder speed improvement
  • Pneumatic holding circuits
  • Air supply isolation
  • Machine automation
  • Vacuum and compressed air circuits
  • OEM machinery

Frequently Asked Questions

What is a pneumatic check valve?

It allows airflow in one direction and blocks reverse flow.

What is a non-return valve?

Non-return valve is another common term for a check valve.

What does a quick exhaust valve do?

It vents air directly near an actuator instead of forcing exhaust air to travel back through the main directional valve.

Why use a quick exhaust valve on a cylinder?

Reducing exhaust restriction can increase cylinder speed in suitable applications.

How do I size an automatic pneumatic valve?

Match port size and flow capacity to the tubing, actuator demand and allowable pressure drop.

Do check valves hold pressure indefinitely?

They can prevent reverse flow, but system leakage and valve leakage characteristics should be considered for safety-critical pressure holding.

Where are automatic pneumatic valves installed?

They are usually installed directly in the relevant branch, often close to the actuator or device they serve.

We use cookies and other similar technologies to improve your browsing experience and the functionality of our site. Privacy Policy.