MT Valves & Fittings product. Available references and published specifications: • 52051151300 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 12" ACT. DOBLE EFECTO; weight (kg): 52.44; small / large box: 1 / 1 • 52051151250 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 10" ACT. DOBLE EFECTO; weight (kg): 26.26; small / large box: 1 / 1 • 52051151200 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 8" ACT. DOBLE EFECTO; weight (kg): 18.19; small / large box: 1 / 1 • 52051151150 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 6" ACT. DOBLE EFECTO; weight (kg): 10.54; small / large box: 1 / 1 • 52051151125 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 5" ACT. DOBLE EFECTO; weight (kg): 8.94; small / large box: 1 / 1 • 52051151100 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 4" ACT. DOBLE EFECTO; weight (kg): 7.56; small / large box: 1 / 1 • 52051151080 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 3" ACT. DOBLE EFECTO; weight (kg): 5.99; small / large box: 1 / 1 • 52051151065 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 21/2" ACT.DOBLE EFECTO; weight (kg): 4.43; small / large box: 1 / 1 • 52051151050 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 2" ACT. DOBLE EFECTO; weight (kg): 3.83; small / large box: 1 / 1 • 52051151040 — measures: VÁLVULA MARIPOSA WAFER DISCO INOX 11/2" ACT. DOBLE EFECTO; weight (kg): 3.58; small / large box: 1 / 1 Price and local availability on request. Source: https://mtspain.net/en/butterfly-valve-wafer-type-stainless-steel-disc-epdm-hard-seat-with-actuator-double-acting/