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

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

Radium Engineering builds precision fluid management hardware trusted across motorsport and performance fuel systems, and this check valve is a straightforward example of that engineering focus. It's a one way valve designed to stop backflow in fuel, oil, coolant and vacuum lines, using a 6AN ORB inlet and an 8.5mm barbed outlet for a secure, leak free connection into standard hose.

This listing covers the single 6AN ORB to 8.5mm barb configuration (SKU 20-1533). It suits fuel system backflow prevention, catch can and AOS setups, coolant overflow lines, oil system protection, and vacuum or boost reference lines where directional flow control matters.

Note: This is a one way valve — confirm correct flow direction and pressure requirements for your application before fitting.

Key Features

• One-way flow design prevents backflow in fuel and fluid systems
• 6AN ORB inlet for a secure, leak free connection
• 8.5mm barbed outlet suits standard 8.5mm ID hose
• Low restriction design minimises pressure drop
• Compact profile suited to tight engine bay installs
• Built to handle fuel, oil and coolant applications

Compatibility notes and installation guidance are provided in the tabs above. Please confirm hose size, flow direction and system pressure before ordering.

Not sure if this check valve suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.