Universal in-tank One Way Valve, AN-6
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Nuke Performance
NUK 150-20-501
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The Nuke Performance SAE In-Tank One-Way Valve, AN-6, is designed for fuel pump mounting kits and optimized for use with Nuke Performance CFC Units and Fuel Surge Tanks.
This in-tank check valve prevents fuel from flowing back when the system is shut down, thereby maintaining residual fuel pressure for faster starts and improved system stability. It also enables running dual-fuel pump setups in steps, where one fuel pump can be shut off when fuel demand is low.
• One-way check valve for fuel pump mounting kit
• Safe for all types of fuels, including alcoholic fuels
• Easy maintenance with quick-connect compatibility
• All stainless steel internals for superior performance
• Minimum flow loss, restriction between 10-20 LPH
This check valve is the easiest and most efficient way to use fuel pumps without an internal check valve, such as the Walbro (Ti Automotive) F90000295, when installed in single-outlet units such as Nuke Performance CFC Units and Fuel Surge Tanks.
The kit includes all necessary components to integrate seamlessly with Nuke Performance SAE fuel pump mounting kits for single and dual-in-tank fuel pump setups. Due to the size of the included adapters, this kit cannot be used with the triple fuel pump mounting kits.
SAE ID8 Fuel pump mounting kit for single fuel pump Part # : 150-20-101
SAE ID8 Fuel pump mounting kit for dual fuel pumps Part # : 150-20-102
SAE ID10 Fuel pump mounting kit for single fuel pump Part # : 150-20-103
SAE ID10 Fuel pump mounting kit for dual fuel pumps Part # : 150-20-104
• Minimal flow loss and reduced current draw.
The oversized stainless steel valve body and internals are designed to deliver exceptional flow characteristics with minimal restriction. Thanks to its large internal valve design, this check valve offers up to 80% less flow loss compared to standard check valves.
The reduced restriction results in lower current draw, contributing to a more efficient and stable fuel system—especially critical in high-demand motorsport applications. When combined with the convoluted in-tank nylon fuel hoses and SAE quick-connect fittings used in Nuke Performance hose kits, this valve delivers a quick, reliable, and long-lasting solution for installation in CFC Units and Fuel Surge Tanks.
• Optional SAE quick-connect fittings, compatible with all fuel types, enabling quick and easy maintenance.
The universal in-tank one-way valve, AN-6, is compatible with a wide range of fittings and accessories and features high-flow SAE quick-connect fittings with Viton O-rings. Fully compliant with the SAE J2044 standard, it delivers maximum flow capacity, durability, and long-term reliability.
• Safe for all fuels, including alcohol fuels such as E85
• Designed for quick and safe maintenance without tools
• Ideal for motorsport and performance applications
The valve is supplied with AN-6 ORB to 1/4 BSPP adapters, allowing direct installation to Nuke Performance CFC Units and Fuel Surge Tanks. All components are engineered for motorsport applications where function, reliability, and performance are equally critical.
• Universal in-tank One Way Valve, AN-6 Specifications:
For more information about specifications, check product document.
| Valve integration | One-way check valve |
| Inlet / outlet ports (threads) | AN-6 ORB |
| Inlet thread w. incl. adapter | 1/4 BSPP Female |
| Outlet thread w. incl. adapter | 1/4 BSPP Male |
| Length | 62.0mm (2.44") |
| Weight | 102.0g (3.60oz) |
| Valve material | Stainless steel |
| Adapter material | Aluminum with FPM O-rings |
| Fuel compatibility | Petrol, Ethanol, Methanol, Race fuel, Diesel |
| For motorsports use | YES, only for motorsports use |
| Calculated flow loss | 10-20 LPH, depending on the fuel pump |
| Calculated current draw | 0.5 - 1.0 Amps |
| Part # | 150-20-501 |
| EAN | 7340209510959 |
• Download Product Manual (.pdf)
• Fuel Pump Mounting Kits
• Universal in-tank One Way Valve, AN-6 includes:
1 x Universal in-tank one-way valve, AN-6
1 x AN-6 ORB to 1/4 BSPP Male adapter
1 x AN-6 ORB to 1/4 BSPP Female adapter
Returns Policy
--PLEASE NOTE: MOST ORDERS ARE SUBJECT TO RESTOCK OR CANCELATION FEE. PLEASE CALL OUR OFFICE FOR DETAILS AND EXCEPTIONS-- You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
