Shipbuilding

The category includes cargo ships, tankers, fishing vessels as well as fifty types of cruise ships. A ship’s piping system is complex, and valves are an essential part of this system that operates the ship. Valves are also used in support of the diverse cargo that ships may carry. Oil valves, ultra-low temperature valves, and valves for chemicals are commonly used. Shipboard butterfly valves and gate valves as well as check valves, angle valves, globe valves and valves made of cast iron and cast bronze must be manufactured following the JIS Marine standards. To ensure that valves function safely, automatic devices used to confirm the reliability of the shipboard environment must be certified according to the standards set by a number of other classification societies.