Cash Acme BFP Series dual check valve with continuous-type 1/2" NPT female union inlet and outlet connection. This check valve prevents backflow of contaminated water into potable water supply lines. It is suitable for hot (up to 180°F) or cold water under continuous pressure; it is also suitable up to 250°F under non-continuous backflow conditions. It has a maximum pressure of 170 psi. The BFP Series is designed for use on small supply lines and protects against both backflow and back-siphonage into potable supply lines for continuous pressure applications. It is constructed of a brass body with two spring loaded poppet-type valve modules, an internal strainer screen, and stainless steel springs. BFP Series valves are designed for use at cross-connections when the danger from backflow does not present a health hazard. It is ideally suited for boiler feed lines, dairy processing systems, livestock drinking fountains, chlorinators, trap primers, and numerous other similar applications.