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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
A one-way check valve only allows flow in a single direction. Radium Engineering's universal check valve features a lightweight anodized aluminum body with FKM seals and stainless steel hardware. As shown below, the streamlined shape of the internal plunger ensures smooth laminar flow.
As you can see, all female -AN ports accept 37-degree flared male connections and/or male ORB (o-ring boss) connections. The direction of flow is laser etched on the side of the part, as shown below.
The check valve is compatible with multiple applications including gasoline, ethanol, methanol, diesel, water, coolant, oil, etc.
SPECIFICATIONS
Body Seal: FKM
Plunger Seal: FKM
Hardware: Stainless Steel
Spring Material: Stainless Steel
Plunger Material: Stainless Steel
Body Material: Anodized Aluminum
Check Valve Type: Spring-Loaded Piston
Large Hex: 30mm (or 1-3/16")
Length without Adapters: 1.72" (43.6mm)
Cracking Pressure: 0.3 psi at 70°F
Maximum Operating Pressure: 1000+ psi at 70°F
Backflow Holding Pressure: 1000+ psi at 70°F
In its original configuration, without any adapters, the universal check valve uses a 10AN male outlet and an 8AN female inlet.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.