large size double flange butterfly valve

Description du produit

Vanne papillon concentrique à double bride use concentric structure design, and their main structure consists of body, disc, seat, stem and transmission mechanism parts, which can also according to the physical and chemical properties of different medium, to choose the corresponding material which is corrosion resistance, light resistance, aging resistance, and can be widely applied in the drainage, pétrole, chimique, food, médecine, energy systems and other fluid on the pipeline as the adjusting and intercepting device.