Schrader Valve to SAE 45-degree Flare Fittings | Adapter to Winterize Backflow Preventer and Pressure Vacuum Breaker (PVB) for Sprinkler System by Blowout Method Using Air Compressor, Lead-Free Brass

Brand name: Vibrant Yard Co. LLC® Package contains: Schrader valve to 3/16" Female SAE 45° Flare Fittings Schrader valve to 1/4" Female SAE 45° Flare Fittings Schrader valve to 5/16" Female SAE 45° Flare Fittings Schrader valve to 3/8" Female SAE 45° Flare Fittings These fittings may be used to connect an air compressor or bike tire pump to a backfl¬ow preventer valve (a.k.a. pressure vacuum breaker) for winterization purpose, or wherever Schrader valve to female SAE 45° flare fittings are needed. Schrader valve is commonly found in car and bicycle tires. Backflow preventers or pressure vacuum breakers (PVB) are typically installed in underground sprinkler systems to prevent water contamination in the event of a water pressure loss. Packaging is reusable. A generalized procedure to winterize backflow preventer using compressed air and bicycle tire pump is provided on the packaging. Note: Backflow preventers typically have either male SAE 45° Flare or female NPT connections (see imag