STF’s CRC-CRR flap valves are non-return valves allowing water flow in one direction. Wall-mounted or flange-mounted, they ensure high sealing with EPDM gaskets and effective closure aided by counterweights.
The CRC-CRR non-return flap valves from STF Filters are designed to allow water flow in one direction and prevent backflow in hydraulic and wastewater systems. Manufactured with frames and covers in AISI-304L or AISI-316L stainless steel, they guarantee high corrosion resistance even under harsh conditions.
Available in two versions: CRC for direct wall mounting and CRR for flange mounting, both equipped with EPDM sealing gaskets to ensure a watertight closure and minimize leakage. Counterweights can be added to assist closing under low pressure or low flow conditions.
The optimized hinge and shaft design enable smooth opening and closing movements, reducing mechanical wear and ensuring long service life. The flap valves support working pressures according to project specifications and fit pipelines from DN-100 to DN-2000, with multiple configuration options.
They are ideal solutions for pumping stations, sewer network outlets, irrigation channels, and water treatment plants, providing effective protection against flooding and backflow.
CRC and CRR flap valves are designed to prevent backflow in hydraulic and wastewater pipelines.
They allow water to flow in only one direction, ensuring protection against flooding or unwanted returns.
Made of stainless steel with EPDM gaskets, they offer high durability and sealing performance even at low pressure.
Available for wall or flange mounting, with optional counterweights to enhance closure.
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