MT Valves & Fittings product. Available references and published specifications: • 511430050 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 2"; weight (kg): 3.5; small / large box: 0 / 0 • 511430065 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 2 1/2"; weight (kg): 4.1; small / large box: 0 / 0 • 511430080 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 3"; weight (kg): 4.7; small / large box: 0 / 0 • 511430100 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 4"; weight (kg): 5.8; small / large box: 0 / 0 • 511430125 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 5"; weight (kg): 11; small / large box: 0 / 0 • 511430150 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 6"; weight (kg): 10.7; small / large box: 0 / 0 • 511430200 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 8"; weight (kg): 20.5; small / large box: 0 / 0 • 511430250 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 10"; weight (kg): 30; small / large box: 0 / 0 • 511430300 — measures: BUTTERFLY VALVE WAFER UNIV PTFE DISC SEAT FREE SHAFT 12"; weight (kg): 43; small / large box: 0 / 0 Price and local availability on request. Source: https://mtspain.net/en/butterfly-valve-wafer-type-free-stem-stainless-steel-a-316-ptfe-disc-ptfe-seat/