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Weir for use in border of e.g. basin in waste water treatment installation application, has inflation and vacuum setting units for permitting inflation and vacuum setting of tubular inflatable element
Weir for use in border of e.g. basin in waste water treatment installation application, has inflation and vacuum setting units for permitting inflation and vacuum setting of tubular inflatable element
The weir (D) has inflation and vacuum setting units for permitting inflation and vacuum setting of a tubular inflatable element (3). The element is inflated under pressure to assure maintenance phase. The element is placed in vacuum to assure discharge phase. A concavity of a semi-cylindrical rigid support (7) is turned to a top part, in which a cylindrical tubular sleeve (6) is placed, where the sleeve is made of elastomer. The element is folded inside a cavity of the support when the element is placed in vacuum, where the support is made of stainless steel tube.
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