5/16" Non Return One Way Inline Check Valve Fitting Aluminum Black Size: 5/16 One-way spring/shuttle type check valve featuring a 5/16 inch barb inlet/outlet, with a housing length of approximately 29mm (excluding the inlet/outlet barbs). Opening Pressure: 1.5 PSI / Maximum Pressure: 1,500 PSI. Constructed from lightweight 6061-T6 aluminum with an anodized finish, providing strength, durability, and resistance to corrosion. These check valves are engineered to permit flow in one direction and block reverse flow. They can serve as a non-return valve in a fuel system or function as a one-way breather valve on fuel tanks. Suitable for use with fuels, oil, coolant, air, diesel, methanol, ethanol, and E85
