In 2019, seawater butterfly valves are exported, we cooperated with a middle east customer for one project 72" watersupply pipeline. The fluid is seawater civil engineering. These valves are solid fully lugged, the body material ASTM A216 Gr. WCB, Disc is ASTM B148 C95400, Stem is duplex stainless steel material. From body & seat mould design mould to products delivery, it takes over three months. Finally, the inspection was highly accepted by our Kuwaiti customer. If you have any such kind of requirements, please contact us sales@welcovalve.com or visit our website: www.welcovalve.com to learn more about our products.