A sea valve secured to the plating of the vessel below the waterline for use in flooding tanks, magazines, etc., to supply water to pumps, and for similar purposes.
Isivalo solwandle esikhuselweyo kumphantsi wenqanawe ezantsi komgca wamanzi ukuze sisetyenziswe kwiinqanawe ezizele ngamanzi, kwizitoro zokugcina izixhobo neembumbulu, njl.njl, ukunikela amanzi kwiimpompo, nemisebenzi efanayo nale.