Cast Steel JIS Storm Valve Vertical Type 5K

Vertical-type storm valve designed for dependable non-return protection in marine drainage and overboard discharge systems. The construction supports controlled one-way flow and helps prevent backflooding when external water pressure rises, improving safety and system integrity in rough-weather or high-swell conditions. Cast steel body delivers high mechanical strength and durability for demanding shipboard service. Manufactured to JIS 5K pressure class with flanged ends for secure installation and repeatable maintenance alignment. Commonly applied on scuppers, ballast/bilge discharge lines, and other storm-water or overboard circuits where backflow prevention is critical.