Festo GRLA-1/8-QS-8-D One-Way Flow Control Valve 215l/min G1/8

Overview
The Festo GRLA-1/8-QS-8-D (part number 193145) is a high-performance one-way flow control valve from the GRLA series, designed for precise exhaust air regulation in pneumatic systems. This valve combines an adjustable throttling function with a reliable non-return (check) mechanism, making it ideal for controlling the piston speed of pneumatic cylinders.

The valve features a G1/8 male thread (port 2) and a QS-8 push-in connector for 8 mm OD tubing (port 1), allowing for quick and secure tool‑free installation. A slotted head screw provides precise, tool‑based flow adjustment. The push‑in fitting can be swivelled 360° after mounting, enabling flexible installation in tight spaces.

Constructed from durable materials, including a die‑cast zinc swivel fitting, a wrought aluminum alloy threaded plug, NBR seals, and a brass adjusting screw, the valve offers excellent durability with a corrosion resistance class (CRC) of 2 – Moderate corrosion stress. It operates at a pressure range of 0.2 to 10 bar, a temperature range of -10 °C to +60 °C, and delivers a standard nominal flow rate of 215 l/min in the flow control direction. It is RoHS compliant and suitable for a wide range of industrial automation applications.

Key Features

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

• QS-8 Push‑In Connector – Tool‑free connection for 8 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 – 215 l/min standard nominal flow rate in the control direction (at 6 bar) ensures efficient cylinder actuation.

• Wide Operating Pressure & Temperature Range – Reliable operation between 0.2 and 10 bar, and -10 °C to +60 °C.

• Slotted Head Screw Adjustment – Provides precise, 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-8-D One‑Way Flow Control Valve (193145)

• Note: Fittings and tubing are sold separately.