Ideal for low-pressure systems and brittle materials (cast iron, PVC), FF flanges feature a flat sealing surface to prevent over-stressing components. Made from stainless steel, carbon steel, or alloys (ASME B16.5/EN 1092-1 compliant), they ensure leak-tight connections in water treatment, HVAC, and general piping. Optional rubber/gasket inserts available for enhanced sealing. Custom drilling patterns and sizes up to DN2000.
| ДУ10(3/8") | Ду15(1/2") | Ду20(3/4") | Ду25(1") | Ду40 (1-1/2") |
| Ду50(2") | DN80(3") | ДУ100(4") | Ду125(5") | Ду150(6") |
| Ду200(8") | Ду250(10") | ДУ300(12") | ДУ350(14") | ДУ400(16") |
| ДУ450(18") | ДУ500(20") | ДУ550(22") | ДУ600(24") |
