Long pipeline ball valve Model: CQ47, CQ947, CQ647 long pipeline ball valve is based on the needs of users, in order to meet the anti-sulfide stress cracking sulfide environment requirements, we painted from design, material selection, manufacturing, testing, surface treatment and paint in strict accordance with the relevant standards of the American Association of Corrosion Engineers NACE conducted. Long pipeline valve selection not only a wide range of trim materials are used nickel-plated or 316, seal with a special polymer material. So that the valve is not only anti-corrosion, anti-curing ability, fire prevention, anti-static, good sealing performance for a wide range of pressure and temperature, full bore and reduced diameter available, can be equipped with a variety of drives, the chemical industry, petroleum refining, natural gas and transport system valves ideal choice.