The local scour of a non-cohesive bed due to a 2-D submerged horizontal jet is investigated experimentally in presence of a protection apron. Previous researches conducted without protection apron demonstrate that. when the tailwater depth is either deep or shallow. the equilibrium state characteristics of the scoured bed profile are mainly a function of the densimetric Froude number. https://allfixelectricales.shop/product-category/burner-locknut/