Overview
The Numatics 3FPRN12 flow control valve is a precision-engineered pneumatic component designed for accurate air flow regulation in industrial automation and fluid power systems. Manufactured in the United States, this compact valve combines rugged construction with practical field serviceability, making it a trusted choice for engineers requiring dependable speed control in pneumatic circuits.
Key Features
- 360-degree swivel rotation for flexible inlet/outlet orientation
- Anodized aluminum body resists corrosion and wear
- Stainless steel spring and nickel-plated brass cartridge for durability
- Screwdriver-adjustable needle valve mechanism for smooth flow tuning
- Right-angle design saves panel space in compact installations
- Push-to-connect outlet eliminates need for secondary fittings
Technical Specifications
- Manufacturer: Numatics (ASCO Numatics)
- Part Number: 3FPRN12
- Valve Type: Inline flow control, needle style
- Inlet Port: 3/8″ NPTF (National Pipe Thread, Female)
- Outlet Port: 3/8″ Push-to-Connect (6mm ID tube)
- Maximum Pressure Rating: 175 psi (12 bar)
- Operating Pressure Range: 0 to 175 psi
- Maximum Flow Rate: 90 CFM (cubic feet per minute)
- Flow Coefficient (Cv): 1.6
- Operating Temperature Range: 0°F to 160°F (–18°C to 71°C)
- Body Material: Anodized aluminum
- Cartridge Material: Nickel-plated brass
- Spring Material: Stainless steel
- Adjustment Mechanism: Screwdriver slot
- Rotation: 360 degrees
- Length: 2 20/87″ (approximately 2.23″)
- Width: 1 9/20″ (approximately 1.45″)
- Country of Origin: United States
Typical Applications
- Pneumatic tool speed control (drills, grinders, impact wrenches)
- Actuator and cylinder velocity regulation
- Press and stamping machine feed rate adjustment
- Robotic arm and gripper movement control
- Air motor flow limiting and protection
- Compressed air system maintenance and diagnostics
- OEM equipment retrofit and assembly line upgrades
Compatibility & Replacements
Compatible With
- Any pneumatic system operating between 0 and 175 psi
- Air compressors and compressed air supply networks
- ISO 4401-05 sandwich cavity valve blocks (with adapters)
- Standard panel-mount pneumatic circuits
- Tube sizes up to 6mm OD (3/8″ push-to-connect standard)
- Industrial and mobile pneumatic applications
Replaces / Drop-In Replacement For
- Numatics 2FPRN12 (3/8″ inlet variant)
- ASCO Numatics equivalent 3FP series models
- Parker and SMC 3/8″ NPT flow control valves (verify port configuration)
Works With
- Standard pneumatic tubing and hose assemblies (6mm ID for outlet)
- ISO 4414 pneumatic circuit standards
- Numatics/ASCO flow control accessories and manifold blocks
- Common pneumatic hand tools and industrial equipment
- Compressed air meters and flow monitoring systems










