This automotive fuel check valve is made of high-strength aluminum alloy, designed for 8mm fuel hoses. It is a one-way flow control fitting that prevents fuel backflow, effectively solving problems like engine stall, difficult cold start, fuel oil return and pressure loss in gasoline pipelines. Widely used in car, motorcycle, lawn mower, generator and other gasoline fuel systems.
Product Specifications
- Inner Hose Diameter: 8mm barbed barb ends
- Material: Lightweight solid aluminum alloy
- Internal Structure: Spring loaded stainless steel one-way valve core
- Assembly Type: Split screw assembly, detachable for cleaning
- Flow Direction: Marked with arrow on housing for correct installation
Core Product Features
1. One-Way Anti-Backflow Function
Built-in stainless steel spring sealing valve core. Fuel can only flow forward following the arrow mark, automatically closes to block reverse fuel reflux when the pump stops. Maintains stable pipeline pressure, avoids fuel flowing back to the fuel tank, improves startup efficiency and eliminates weak acceleration caused by oil return.
2. Premium Anti-Corrosion Aluminum Alloy Material
Integral CNC machined aluminum body with smooth polished surface. Resists erosion by gasoline, diesel, alcohol blended fuel and oil additives. Lightweight but high tensile strength, no rust, deformation or leakage under long-term fuel contact. Better corrosion resistance than plastic check valves.
3. Double Barbed Hose Connectors
Both ends feature multi-ring stepped barbed pipe nipples. Firmly locks onto 8mm inner diameter rubber fuel hoses, effectively preventing hose slipping and liquid leakage under fuel pressure. Compatible with standard automotive rubber fuel tubing.
4. Detachable Split Maintenance Design
Hexagonal threaded split structure, can be unscrewed to take out the internal valve core for cleaning sediment, sludge and impurities accumulated from fuel. Reusable after cleaning, extends service life and reduces replacement cost. Equipped with high temperature resistant sealing rubber ring for zero leakage.
5. Wide Temperature & Pressure Adaptability
Works stably under high engine compartment temperature and normal fuel pipeline pressure. Not easy to fail under hot summer or cold winter environments, durable for long-term vehicle use.
Wide Application Scenarios
- Automobile gasoline fuel supply pipeline
- Motorcycle, ATV, scooter fuel systems
- Small gasoline engines: lawn mowers, trimmers, generators, water pumps
- Modified fuel tanks, refitting oil circuit auxiliary fittings
Installation Guide
- Confirm the arrow mark on the valve body matches the fuel flowing direction (from fuel tank to engine)
- Slide 8mm fuel hose onto both barbed ends, clamp with hose clips for tight sealing
- Fix the valve in a cool position away from high-temperature exhaust parts
- After installation, start the engine to check for oil leakage at the hose joints
What's in the box
1 x 8mm Fuel Check Valve
