Rectangular Ship Ventilation Covers (VGN) for Effective Deck Sealing

These water and gas tight rectangular covers are designed for installation on similar hatches of the main deck. Their main function is to completely cover ventilation openings in hull structures. The covers must protect the room from water and gas penetration and remain impermeable even in cases of prolonged exposure to high water pressure. The louvres with electric and manual drives are designed to regulate or cut off gas-vapour-air flows, including explosive flows.