Check ValveHayward Flow Control’s patent pending WCV Series Full Pattern Wafer Check Valves feature robust all-thermoplastic, injection-molded construction, including what Hayward Flow Control describes as a revolutionary angle seat and disc design. The seat and disc design allows for high-flow capacities (Cv) exceeding other thermoplastic wafer checks, and equal to or better than most metal wafer checks, based on published and independent third-party test data. The full-pattern design also eliminates the need for spacers or specialty flanges to achieve higher flowrates in the line, allowing for easy installation. The WCV Series is available in PVC and CPVC materials, sizes 2 inches to 8 inches, and soon to come in GFPP (glass-filled polypropylene). The valves have a maximum pressure rating of 150 PSI non-shock at 70 F in all sizes, and will fit both ANSI150 and PN10 flanges. Typical applications or installations include water & wastewater treatment, chemical processing, mining, and marine or corrosive environments. –