Cone check valve series

The Type 561/562 Cone Check Valve and the Type 591/595 Vent and Bleed Valve Series feature a spherical cone shape design that offers improved flow characteristics and leak-proof operating performance. Available in sizes from 3/8” – 4”, customers can select from PVC, CPVC, PROGEF Standard, Polypropylene, SYGEF PVDF, or ABS materials to match their plastic piping system. Sealing materials are available in EPDM and FPM. The Type 561 and Type 562 Cone Check Valves incorporate the latest in check valve technology to provide enhanced safety, simplified handling, and increased efficiency. The valve’s aerodynamic, spherical shaped cone ensures tight closing and 100% leak-proof operation. The cone’s double bearing prevents it from tilting, even with rapid closing, and eliminates malfunctions. Additional benefits of the valve’s spherical cone include improved Cv values over standard ball-type check valves and minimized cleaning and servicing due to the smallest possible contamination surface.