Cylindrical mushroom vents are used in marine passive ventilation systems. There are three types of them: deck or coaming mounted, wall mounted with screws or wall mounted with welding.
They are produced according to working drawings and OST 5.5367 requirements. All inner passage sizes suit GOST 8468 standards.
Upon customer’s request we can produce cylindrical mushroom vents of stainless steel or of 02G2S steel (frost-resistant low alloy structural steel used in temperature range from -70 to +450° C.)