Festo HGL Non Return Valve, 8mm Tube Inlet, 10bar

The Festo HGL-3/8-QS-8 is a threaded non-return valve used to control airflow direction in pneumatic circuits. It allows compressed air to pass in one direction while blocking reverse flow, helping protect equipment and maintain stable system pressure. Designed for up to 10 bar operating pressure, it fits common industrial air systems without special setup. This valve is typically installed where backflow could cause pressure loss, unstable operation, or damage to pneumatic components.

Unique Features and Benefits of the Festo 10bar Threaded Non-Return Valve, 8mm Tube Inlet

Once air flows in the allowed direction, the valve opens automatically. If pressure tries to reverse, the valve closes, stopping airflow. This simple function plays a vital role in keeping cylinders, actuators, and control circuits working as intended.

• Prevents reverse airflow.
• Maintains pressure stability.
• Supports consistent actuator movement.
• 8 mm push-in tube connection.
• 3/8-inch threaded port.
• Rated for systems up to 10 bar.
• Works quietly in the background.

Solid Flow Control for Pneumatic Systems

The HGL-3/8-QS-8 features a 3/8-inch threaded body connection with a quick-fit push-in inlet for 8 mm pneumatic tubing. This makes installation quick and secure, especially in compact control panels or machine assemblies. The valve body is built for long service life in industrial environments, handling repeated pressure cycles without sticking or leakage when installed correctly.

Broad Range Application

It is often used as a protective component to prevent unwanted pressure feedback in air circuits.

• Compressed air supply lines
• Pneumatic cylinders and actuators
• Automation and assembly machinery
• Industrial control panels

For more information please check the datasheets.