


Radium Engineering Roll Over Valve, 10AN ORB To 3/4" Barb
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Description
Radium Roll Over Valve, 10AN ORB To 3/4" Barb
Application: Universal – engine vents and catch cans with 10AN ORB female top ports
Part Type: Roll-over valve fitting, 10AN ORB to 3/4" barb
Part Number: 20-0594
The Radium Roll Over Valve lets air flow freely in both directions while it is mounted upright, then shuts off all flow once it is rotated past 90 degrees. It allows an engine or catch can to vent normally while keeping oil contained if the vehicle ends up inverted.
It is most commonly used on engine vents and catch cans, and is designed to pair with the Radium 0.75" ID Air Filter (18-0042).
Key Features
- Roll-Over Protection: Closes off flow when rotated more than 90 degrees
- Two-Way Venting: Free airflow in both directions when upright
- 10AN ORB Thread: 7/8-14 UNF with FKM O-ring seal
- 3/4" Barb: 19mm (0.75") barb to suit Radium air filter 18-0042
- Stainless Internals: Stainless steel valve and retaining ring
- Anodised Body: 6061 aluminium with Type-II anodising
Optional Parts
- Radium Air Filter 0.75" ID (18-0042) – mates to the 3/4" barb for a filtered vent
- Radium 10AN ORB Fitting to Air Filter (20-0050) – use instead for Fluid Lock or side-outlet catch cans
Important Notes
- Must be mounted vertically, in the upright position, to work correctly
- Suits Radium standard (non-Fluid Lock) catch cans and other catch cans with 10AN ORB female top outlets
- Not for use with Radium Fluid Lock catch cans or catch cans with side outlets – use 20-0050 instead
Vehicle Fitment
- Universal – see Application
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.

