One-Way Check Valve, 4AN Male, Black Aluminum

This high-quality check valve has a low-tension spring to allow virtually unimpeded flow in one direction, yet the O-ring sealed internal valve positively prevents flow in the opposite direction. They are used in fuel systems, oil scavenge lines, and other low pressure applications where flow can only be allowed in one direction.

Body measures 29mm long (less fittings at each end). Nominal 1.5 psi cracking pressure. Black anodized aluminum body with male 4AN (7/16-20 UNF, 37° convex flare) JIC fittings. Sold individually.