Hi Elhamy, You might take a ...

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Hi Elhamy,

You might take a look to surge vessel products sold worldwide to seek for specification and design:

https://www.bermad.com/wp-content/uploads/2016/06/ww_massal_v9_1.pdf

https://www.arivalves.com/library/product-catalogs/catalog-wastewater?task=callelement&format=raw&item_id=278&element=9312504b-69ee-4d4f-b014-f666d2e92f56&method=download

Hope this helps.