Radium Engineering Check Valve - 6AN ORB to 8.5mm Barb

The Radium Engineering Check Valve is a precision-engineered one-way valve designed for fuel and fluid systems where directional flow control is critical. Featuring a 6AN ORB (O-Ring Boss) inlet and 8.5mm barbed outlet, this compact valve prevents backflow while maintaining minimal restriction in high-performance applications.

Part Number

• 20-1533 - Check Valve, 6AN ORB to 8.5mm Barb

Key Features

• One-Way Flow Design: Prevents backflow in fuel and fluid systems
• 6AN ORB Inlet: Industry-standard O-Ring Boss fitting for secure, leak-free connection
• 8.5mm Barbed Outlet: Compatible with standard 8.5mm ID hose
• Low-Restriction Design: Minimal pressure drop for optimal flow performance
• Durable Construction: Built to withstand fuel, oil, and coolant applications
• Compact Profile: Space-efficient design for tight engine bay installations
• Universal Application: Suitable for fuel systems, catch cans, and fluid management

Common Applications

• Fuel system backflow prevention
• Catch can and AOS systems
• Coolant overflow systems
• Oil system protection
• Vacuum and boost reference lines

Note: Verify flow direction and pressure requirements for your specific application. Check valve allows flow in one direction only.

Why Radium Engineering?

• ✓ Engineered in the USA: Designed and manufactured in Washington State
• ✓ Motorsport Proven: Trusted by professional race teams worldwide
• ✓ Premium Materials: High-quality construction for reliable performance
• ✓ Precision Engineering: Exacting standards for leak-free operation
• ✓ Performance Focused: Engineered for demanding automotive applications

Lead Time: Most Radium products ship within 2-3 business days from our Australian warehouse. Some items may require ordering from the USA with extended lead times. Contact us for current stock availability.

Professional installation recommended. Ensure proper flow direction and compatibility with your system before installation.