A door so constructed that, when closed, it will prevent water under pressure from passing through. A common type consists of a steel plate, around the edges of which a frame of angle bar is fitted, having a strip of rubber attached to the reverse side of the flange that is fastened to the door plate. The strip of rubber is compressed against the toe of the flange of an angle-iron door frame by dogs or clamps.
Ucango olwakhiwe ngendlela yokuba lwakuvaleka, luthintele ukungena kwamanzi aphantsi koxinzelelo.