Georg Fischer Piping Systems Ltd Valves - Plastic-Valves - Check-Valves - cone-Check-Valve-561-562 161561094

Check valve type 561 PVC-U for vertical installation, with fixed metric flanges and no spring, designed for flow-optimized operation and vibration-free performance at high velocities. The valve has an installation length of 154 mm according to EN 558-1, with connecting dimensions compliant with ISO 7005 PN10, EN 1092 PN10, and DIN 2501 PN10, and seals at a minimum water column of 2 m. This variant has a nominal diameter of 25 mm, a kv-value of 460 l/min at Δp=1 bar, and weighs 0.670 kg with FKM sealing. The valve body is compatible with standard flange spacings matching ball valve type 546.