Overview
The Festo GRP-160-PK-4 (Part Number 12961) is a precision one-way flow control valve engineered for pneumatic systems requiring accurate and repeatable air flow regulation. This valve combines Festo’s proven design with robust construction, delivering reliable performance in industrial automation, manufacturing equipment, and process control applications. The GRP-160-PK-4 enables unidirectional flow with smooth throttling adjustment, making it suitable for both OEM equipment and field retrofit installations.
Key Features
- Precision one-way flow control with manual throttle adjustment
- Push-in connector (PK-4) for quick, tool-free installation
- Rated for 0–8 bar operating pressure range
- Compact metal body with durable construction
- Proven service life of 10 million cycles (B10 rating)
- Temperature range: −10°C to +50°C
Technical Specifications
- Part Number: GRP-160-PK-4
- Festo Order Code: 12961
- Valve Type: Precision one-way flow control
- Series: GRP (Precision one-way check valve series)
- Connector Type: Push-in connector (PK-4, 4 mm O.D. tubing)
- Operating Pressure: 0–8 bar
- Temperature Range: −10°C to +50°C
- Service Life (B10): 10 million cycles
- Medium: Compressed air and inert gases (non-lubricated operation)
- Standards: ISO 1179-1, ISO 228-1
Typical Applications
- Speed control of pneumatic cylinders and actuators
- Flow regulation in automated manufacturing equipment
- Directional control and pilot pressure lines
- Industrial process automation systems
- OEM pneumatic subsystems and integrated valve blocks
- Precision deceleration and damping circuits
Compatibility & Replacements
Compatible With
- Festo pneumatic valve manifolds and subplates
- Standard ISO 1179-1 ported cavity systems
- 4 mm O.D. polyurethane or polyamide push-in tubing
- Compressed air circuits rated 0–8 bar
- Festo integrated valve systems and modular blocks
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering.
Works With
- Festo pneumatic design software and CAD libraries
- ISO 1179-1 compliant valve cavity systems
- Push-in connection ecosystems (PK connector standard)
- Compressed air preparation and filtration systems
- Pilot-operated and proportional valve circuits
















