Radium Engineering Check Valve Fittings
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Radium Engineering Check Valve Fittings - Universal
Radium Engineering check valve fittings allow flow in one direction only, stopping backflow in fuel systems, catch can and AOS setups, coolant overflow lines, oil systems and vacuum or boost reference lines. The low-restriction, compact design suits tight engine bays. The inline versions run from a 6AN ORB port to a hose barb, and the pump outlet adapter combines an integrated check valve with a 10mm barb to hold fuel pressure when the pump is off.
Choose your fitting from the dropdown – each option lists both connection types.
Note: Flow direction matters – check the valve orientation and your system's pressure requirements before installing. Use fuel-safe hose of the matching ID with suitable hose clamps. Installation by a professional is recommended.
Features
- One-way flow prevents backflow
- Low-restriction, compact design
- 6AN ORB inlet versions with 8.5mm or 10mm barb outlet
- Pump outlet adapter with integrated check valve and 10mm barb
- Suits fuel, oil, coolant and vacuum/boost reference lines
Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.
Vehicle Compatibility
| Make | Model | Chassis | Years | Engine / Notes |
|---|---|---|---|---|
| Universal | Universal fitment - verify dimensions before ordering | - | - | - |
Technical Specifications
| Spec | Value |
|---|---|
| Brand | Radium Engineering |
| Valve type | One-way check valve |
| Inlet | 6AN ORB (inline versions) / fuel pump outlet (pump outlet adapter) |
| Outlet | 8.5mm or 10mm hose barb |
| 6AN ORB thread | 9/16"-18 |
| Design | Low restriction, compact profile |
| Part number(s) | 20-1533, 20-1534, 20-0798 |
| 6AN ORB to 8.5mm Barb – Part number | 20-1533 |
| 6AN ORB to 10mm Barb – Part number | 20-1534 |
| Pump Outlet Adapter to 10mm Barb – Part number | 20-0798 |
No instructions available for this product.

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