RV Brass Vacuum Breaker Check Valve 1/2 Inch, AntiBackflow Brass Flush Valve Replacement for Camper Trailer and Motorhome 571VACCHKA

Vacuum Breaker Check Valve for RV model 571VACCHKA, compatible with Model 571 check valve Overview This vacuum breaker check valve is designed for RV black tank flushing systems. Installed between the freshwater inlet and the tank flusher, it prevents backflow and backsiphonage to protect your freshwater source and maintain system hygiene. Key benefits Prevents contamination: Stops wastewater or tank fluids from flowing back into the freshwater supply, protecting potable water. Durable construction: Upgraded brass body handles regular use and resists wear under pressure. Wide pressure range: Rated to withstand 8 to 125 PSI for reliable performance in typical RV water systems. Easy to install: Standard 1/2 inch NPT male threads on both inlet and outlet for direct replacement and simple connection. Direct replacement: Works as a replacement for cracked or leaking check valves compatible with Model 571. Important specifications Model: 571VACCHKA Function: Vacuum breaker and oneway check valve for black tank flushing systems Connections: 1/2 inch NPT male threads, inlet and outlet Material: Brass Pressure rating: 8 to 125 PSI Installation requirement: Must be installed at least 6 inches above the point of any item connected to the waste tank where the flusher is installed Typical applications a damaged check valve on a travel trailer black tank flush line to prevent sewage from backflowing into the freshwater hose when connected to a city water spigot. Install between the freshwater inlet and tank flusher on a motor home to protect onboard potable water when using external flushing equipment. Use in campers and pop up trailers as a reliable oneway valve to maintain clean freshwater supply during campsite hookups and routine tank maintenance. Installation tips Install the valve in the line between the freshwater inlet and the tank flusher with the correct flow direction. Use sealant or tape rated for NPT threads and hand tighten followed by a short wrench turn to avoid over tightening. Ensure the valve is located a minimum of 6 inches above the connection point to the waste tank as required. A practical, longlasting replacement for RV black tank flushing systems, the 571VACCHKA vacuum breaker check valve helps maintain clean freshwater and dependable operation while you travel.