Type 561/562 Cone Check Valve and Type 591/595 Vent and Bleed Valve Series feature a new spherical cone shape design that offers improved flow characteristics and leak-proof operating performance. Available in sizes from 3/8” – 4”, PVC, CPVC, PROGEF Standard, Polypropylene, SYGEF® PVDF, or ABS materials. Sealing materials are available in EPDM and FPM.
Type 561 and Type 562 Cone Check Valves incorporate the latest in check valve technology to provide enhanced safety, simplified handling and increased efficiency. Several design elements are at the core of its higher performance operation. The valve’s aerodynamic, spherical shaped cone ensures tight closing and 100 percent 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.
Type 591 Bleed Valve and the 595 Ventilating Valve features an open air vent designed for containers or pipes that must be aerated and/or vented. These valves incorporate a float mechanism that opens the valve when the level of the liquid falls and closes the valve if the level of the liquid rises. The new ventilating and bleed valves are suitable for applications requiring de-aerating of air while filling piping systems and tanks, or to eliminate vacuums and discharge air pockets.
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