Rollover Safety Vent Valve Assembly 1/2" NPTF Male Threads & 5/16" Hose Threads Universal Tank Fit For Gasoline & Diesel Systems

1/2" NPTF Fuel Check Valve Vent, Rollover Safety Vent Valve Assembly Compatible with Fuel Cell Vent & Gas Tank Vent, Universal Fuel Tank Rollover Valve for Gasoline & Diesel Systems

• 【Premium Brass Construction for Fuel Rollover Vent Valve】 Crafted from heavy-duty solid brass, this fuel rollover vent valve offers exceptional durability and corrosion resistance—ideal for long-term use as a fuel tank rollover valve. It withstands harsh conditions (e.g., high temperature, moisture) to maintain reliable performance, perfectly matching the needs of universal fuel gas tank vent systems. The brass build also enhances leak-proof stability, making it a durable replacement for old fuel tank vent valve assemblies.
• 【Critical Rollover Safety Function for Fuel Tank Safety】 As a mandatory safety component for gasoline/diesel fuel systems, this fuel rollover safety vent valve features an internal check ball design. It allows air to flow freely in/out of the fuel tank during normal operation, while preventing fuel leakage if the vehicle or fuel tank tips over—effectively protecting your universal fuel gas tank from hazardous spills. This safety function makes it an essential fuel tank vent valve for trailers, industrial vehicles, and daily-use cars.
• 【Precision 1/2" NPTF & 5/16" Threads for Fuel Tank Installation】 This fuel rollover valve assembly is equipped with 1/2" NPTF male threads (exclusively for secure NPTF thread connections) and accepts 5/16" ID hose threads—no adapter needed for most universal fuel gas tank vent lines. It installs easily with a 7/8" socket or wrench, ensuring a tight, leak-free seal that eliminates air leakage issues common in low-quality fuel tank vent valve assemblies. The precision threads also fit perfectly with aftermarket fuel tank vent systems.
• 【Easy Installation for Fuel Tank Vent Valve Assembly】 Designed for straightforward integration into existing fuel tank vent systems, this fuel rollover vent valve requires no complex modifications. Simply align the 1/2" NPTF male threads with your universal fuel gas tank’s vent port, tighten with a 7/8" wrench, and connect the 5/16" hose—complete setup in minutes. The hassle-free installation saves time, making it suitable for both DIY enthusiasts and professional mechanics replacing old fuel tank rollover valve parts.
• 【Wide Compatibility for Universal Fuel Gas Tanks】 With interchangeable performance (matching part functions of 90-00945/RO-1/2), this fuel rollover vent valve assembly fits most universal fuel gas tanks—compatible with gasoline, diesel, and industrial fuel systems. It delivers a flow rate of up to 30 CFM (max back pressure 0.23 psi) and 70 CFH rating, meeting the venting needs of vehicle fuel tanks, trailer fuel tanks, and small industrial fuel tanks. Note: Fit for fuel tank vent lines with 1/2" NPTF ports and 5/16" hoses.