MT Valves & Fittings product. Flap valve with female-female connection and elastic seal. Reinforced body made of CW617N brass and sandblasted surface with hexagon shutter holding a greased NBR inspection washer. The flap valve with thread in accordance with ISO 228/1 (DIN 259) is guaranteed for use in cold and hot water. Model 4119 is suitable for operating temperatures from 0 to 80°C. It is ACS-certified. The wide range of MT valves aims to cover all market needs and satisfy the specific requirements in all geographical areas of the world and the various applications in sectors such as industry, plumbing, heating, irrigation, etc. Available references and published specifications: • 4119015 — measures: F-F RUBBER WASHER SWING CHECK VALVE 1/2"; weight (kg): 0.17; small / large box: 12 / 72 • 4119020 — measures: F-F RUBBER WASHER SWING CHECK VALVE 3/4"; weight (kg): 0.24; small / large box: 10 / 60 • 4119025 — measures: F-F RUBBER WASHER SWING CHECK VALVE 1"; weight (kg): 0.34; small / large box: 7 / 28 • 4119032 — measures: F-F RUBBER WASHER SWING CHECK VALVE 1 1/4"; weight (kg): 0.55; small / large box: 5 / 20 • 4119040 — measures: F-F RUBBER WASHER SWING CHECK VALVE 1 1/2"; weight (kg): 0.63; small / large box: 4 / 16 • 4119050 — measures: F-F RUBBER WASHER SWING CHECK VALVE 2"; weight (kg): 1.18; small / large box: 1 / 10 • 4119065 — measures: F-F RUBBER WASHER SWING CHECK VALVE 2 1/2"; weight (kg): 1.78; small / large box: 1 / 5 • 4119080 — measures: F-F RUBBER WASHER SWING CHECK VALVE 3"; weight (kg): 2.9; small / large box: 1 / 3 • 4119100 — measures: F-F RUBBER WASHER SWING CHECK VALVE 4"; weight (kg): 4.7; small / large box: 1 / 2 Price and local availability on request. Source: https://mtspain.net/en/f-f-rubber-washer-swing-check-brass-valve-pn16/