Insulation ball; two-pass valve insulation; soft sealing insulation valve; hard sealed insulation ball thanks to the overall structure BQ41F insulation valve, thus insulation ball valve which is smaller than the average BQ41F insulation ball valve, lighter, and no leakage, Seal good performance, the use of carbon steel welding jacket more firmly than the pressure casting. Valve Co., Ltd. Shandong Everbright valve valve manufacturer specializing in the production model, welcome new and old customers to order our products! Insulation is a ball valve, gate valve and flange belong to a type of closure member is a sphere, the sphere rotating around the center line valve to achieve open and close. Ball in the pipeline is mainly used for cutting, distribution and change the direction of flow of the medium. The general level of the installation. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products! BQ41F insulation ball valve, BQ41F, valve manufacturers Everbright Everbright Limited provided by Shandong valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!