Non-return valve<\/h5>\n
Non return valve are elements which allows the passage of the water in one direction and prevent the passage of the water in the opposite direction. <\/p>\n
In addition of storm tanks, the non return valves are usually installed at the end of the overflow, to prevent the return of the environment water (river water, sea water\u2026) in the sewerage. <\/p>\n
In the storm tank is placed in the common wall between the central channel and the retention chamber. It Prevents the passage of water from the central chamber to the retention chamber, preventing the retention chamber is filled with water to small rain events and their corresponding subsequent cleaning.<\/p>\n
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<\/span>HIDROSTANK type non-return valve<\/strong><\/h2>\n
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![](\"https:\/\/pruebas.hidrostank.com\/hidrostank\/wp-content\/uploads\/img\/clapeta.jpg\")
<\/p>\nHidrostank non-return valve allows the passage of the water in one direction and prevent the passage of the water in the opposite direction. Made of stainless steel body, AISI-304L\/AISI-316L, and neoprene lid which guarantees a minimum pressure drop and minimum maintenance.<\/p>\n
Hidrostank non-return valve are available for diameters from 100 mm to 400 mm, being able the manufacture of other diameters.<\/p>\n
It can be anchored to the wall or embedded in the wall with its pipe or flanged. <\/p>\n
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Clapetas Tipo Hidrostank<\/a><\/p>\n<\/div>\n<\/li>\n
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<\/span>END LINE type non-return valve<\/strong><\/h2>\n
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![](\"https:\/\/pruebas.hidrostank.com\/hidrostank\/wp-content\/uploads\/img\/fin-linea.jpg\")
<\/p>\nEnd line non-return valve allows the passage of the water in one direction and prevent the passage of the water in the opposite direction. Made of stainless steel, AISI-304L, AISI-316L.<\/p>\n
Hidrostank non-return valve are available for diameters from 500 mm to 1500 mm, being able the manufacture of other diameters.<\/p>\n
It can be anchored to the wall or embedded in the wall with its pipe or flanged.<\/p>\n
Clapetas Tipo Fin de linea<\/a><\/p>\n<\/p>\n<\/div>\n<\/li>\n
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<\/span>NON TIDE type non-return valve<\/strong><\/h2>\n
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![](\"https:\/\/pruebas.hidrostank.com\/hidrostank\/wp-content\/uploads\/img\/antimarea.jpg\")
<\/p>\nIn a storm tank in which relief is produced directly to an environment where it is possible that the phreatic level is above the level of the tank, it is essential that tide flood, of that environment, will not penetrate inside it.<\/p>\n
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