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.
| DN10(3/8") | DN15(1/2") | DN20(3/4") | DN25(1") | DN40 (1-1/2 インチ) |
| DN50(2インチ) | DN80(3") | DN100(4") | DN125(5インチ) | DN150(6インチ) |
| DN200(8インチ) | DN250(10インチ) | DN300(12インチ) | DN350(14インチ) | DN400(16インチ) |
| DN400(16インチ) | DN500(20インチ) | DN550(22インチ) | DN600(24インチ) |
