Radium Duckbill Valve
Radium Duckbill Valve
Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
This fluorosilicone duckbill valve is a one-way check valve designed to reduce fuel slosh noise and prevent fuel backflow for fire safety. Typically installed on the fuel pressure regulator return hose inside the fuel tank, it allows fuel to flow in one direction only — closing instantly to prevent reverse flow under slosh or surge conditions.
Compatible with all fuel types including E85 and all alcohol blends.
Suits: Universal — FPR return hose in-tank applications and any one-way fuel flow requirement with a 3/8" (9.5mm) ID connection
Specifications:
- Material: Fluorosilicone
- Inner diameter: 3/8" (9.5mm)
- Height: 0.89" (22.6mm)
- Opening pressure: 0-1 kPa
- Hardness: Shore A70
- Fuel compatibility: All fuel types including E85 and alcohol blends
Available Part Numbers:
- 18-0026 — Duckbill Valve, Fluorosilicone, 3/8" ID
Why Radium Engineering?
- ✅ Manufactured in the USA to motorsport-grade tolerances
- ✅ Fluorosilicone construction — compatible with all fuel types including E85 and alcohol blends
- ✅ Trusted by tuners and race teams running high-power fuel system builds worldwide
- ✅ Reduces fuel slosh noise and prevents backflow for improved fire safety
- ✅ Universal 3/8" (9.5mm) ID — suits FPR return hose and in-tank one-way flow applications
Specifications
- Part Number
- 18-0026
- Brand
- Radium Engineering
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.