Midland Industries Backflow Preventers

Overview

The MIDLAND INDUSTRIES 46524A is a marine anti-siphon valve designed to prevent backflow and siphoning in fuel and fluid systems aboard marine vessels. Constructed with an aluminum body, this valve is built to resist the corrosive conditions common in marine environments. It features a 3/8 x 3/8 inch nominal size with male iron pipe (MIP) to female iron pipe (FIP) connections and a 3/8-18 thread size. The compact form factor - 1.9 inches in length and 0.85 inches in height - makes it suitable for tight installation spaces. Marine technicians and boat service professionals are the primary installers of this valve. This valve is used in residential and commercial marine applications where preventing backflow or siphon action is required in fuel lines, water systems, or similar fluid circuits on boats and watercraft. The MIP x FIP configuration allows for straightforward inline installation within threaded pipe runs. Its lightweight aluminum body keeps overall system weight low while maintaining structural integrity in wet, salt-exposed service conditions. Key Features Aluminum body construction for corrosion resistance in marine environments 3/8 x 3/8 inch nominal MIP x FIP threaded connections for inline installation 3/8-18 thread size for standard pipe compatibility Compact dimensions - 1.9 inches long, 0.85 inches high, 0.95 inches wide Lightweight at 0.085 pounds, minimizing added system weight Functions as an anti-siphon device to prevent unintended fluid backflow…