The new Flomatic Corporation Model 508S6 Ball Check Valve is a simple yet reliable 316 stainless steel check valve. It features a full-ported valve seat uniquely designed to allow a strong phenolic ball to seat on a Nitrile (Buna-N) seat. For vacuum or anti-flooding valve applications, an optional "floating" rather than "sinking" ball is used. Due to its simple, flow-efficient design, the valve is virtually maintenance-free.
The valve is commonly used in submersible wastewater lift station applications. The optional vacuum breaker mounted on the access port reduces hydraulic shocks. Rated at 150 PSI and a MAX 180 degrees Fahrenheit, Model 508S6 is available in 1 ¼-inch, 1 ½-inch, and 2-inch sizes.