Festo GRLA-1/8-QS-6-RS-B One-Way Flow Control Valve G1/8 185l/min 162965

Overview
The Festo GRLA-1/8-QS-6-RS-B (part number 162965) is a high-performance one-way flow control valve from the GRLA series, designed for precise exhaust air regulation in pneumatic systems. This valve effectively combines a non-return (check) valve function with an adjustable throttle, making it ideal for precisely regulating the piston speed of pneumatic cylinders, particularly for double-acting cylinders. Its exhaust air flow control function ensures smooth and consistent actuator movement, critical for machine reliability.

The valve features a QS-6 push-in connector for 6 mm OD tubing on the supply side (port 1) and a male G1/8 thread on the outlet (port 2), allowing for quick and secure installation. A knurled screw provides manual, tool‑based flow adjustment, allowing for precise metering of airflow. The unit can be swiveled 360° after mounting, allowing for flexible installation in tight spaces.

Constructed from durable materials, including a wrought aluminum alloy threaded plug, a PBT-reinforced swivel fitting, and NBR/TPE-U(PU) seals, the valve offers a corrosion resistance class of 2 for moderate industrial stress. With a high flow rate of 185 l/min in the control direction and up to 390 l/min in the free-flow direction at 6 bar, it ensures efficient cylinder actuation. The valve operates at a pressure range of 0.2 to 10 bar and a temperature range of -10°C to +60°C. It is RoHS compliant and suitable for a wide range of industrial automation applications, including assembly lines, packaging machinery, and robot systems.

Key Features

• One-Way Flow Control Valve – Provides free flow in one direction and adjustable, metered flow in the opposite direction, ideal for precise piston speed regulation.

• Exhaust Air Flow Control Function – Regulates the exhaust air from a cylinder, ensuring smooth and stable actuator movement.

• QS-6 Push-In Connector – Tool‑free connection for 6 mm OD tubing (port 1), reducing installation and maintenance time.

• G1/8 Male Thread – Standard port size for easy integration into existing pneumatic systems (port 2).

• High Flow Rate – 185 l/min standard nominal flow rate in the control direction, with up to 390 l/min in the free‑flow direction at 6 bar, ensuring high system efficiency.

• Wide Operating Pressure Range – Reliable operation between 0.2 and 10 bar, suitable for vacuum and compressed air applications.

• Knurled Screw Adjustment – Provides precise, manual, tool‑based flow rate regulation.

• 360° Rotatable Push-In Connector – The QS fitting can be swivelled after mounting, allowing for flexible alignment in any installation position.

• Durable Metal Construction – Features a die‑cast zinc swivel fitting, a wrought aluminum alloy threaded plug, NBR seals, and a brass adjusting screw for long‑term reliability in demanding industrial environments.

• Original Brand New, Within Warranty Period – Genuine Festo product, brand new in sealed packaging, covered by manufacturer's warranty.

• 100% Satisfaction Guarantee – Your purchase is protected by our satisfaction guarantee; return or exchange if not completely satisfied.

Technical Specifications

Applications
Ideal for precise speed control of pneumatic actuators, such as regulating the piston speed of double‑acting cylinders, in pick‑and‑place systems, automated assembly lines, packaging machinery, material handling equipment, and robotic systems.

Package Includes

• 1 x Festo GRLA-1/8-QS-6-RS-B One‑Way Flow Control Valve (162965)

• Note: Fittings and tubing are sold separately.