January 16th, 2025 Glens Falls, NY – Flomatic Valves, a leading provider of water control solutions, is excited to release the new Model 745SC – 8” swing check valve. To ensure superior performance, reliability, and versatility, this valve is compliant with American Iron & Steel (AIS provisions and meets the requirements of AWWA Standard C508).
The Model 745SC, Surge-Stopper®, is a carefully engineered swing check valve that incorporates a non-slam short stroke design with a rapid closure spring and resilient flapper hinge to reduce disc closing time for fast acting demand. Construction of the valve is done through the use of fusion-bonded, epoxy-coated ductile iron (A536 65-45-12) body, Buna-N flapper (EPDM optional), and stainless-steel spring. This stainless-steel spring (unique to the 745SC) is angled in a 45-degree seating surface to rapidly close the valve through minimized disc travel and prevent slamming during rapid flow reversals.
The design for the resilient seat involves a replaceable one piece molded flapper. This flapper consists of a reinforced flexible hinge and steel flapper disc enclosed in Buna-N rubber. The molded seating surface of the disc makes use of a raised rib seal to provide a line contact with the mating machined seat surface. Combining these features results in a bubble-tight seal under low pressure which is suitable for vacuum service.
The Model 745SC, Surge-Stopper®, is designed for municipal and industrial water and wastewater applications by fully complying with ANSI/AWWA Standard C508 full waterway design. The flat buna cover gasket is designed to ease disassembly for convenient maintenance. Model 745SC can be ordered with a Back Flush Device, Position Indicator, and/or Limit Switch for enhanced versatility.
Any variant of these gauges can be assembled or disassembled without removing the valve from the line. Integral Mounting Pads on each side of the valve can be tapped to create body ports for additional gauges. The limit switch is designed for optional fitting with a SCADA.
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