Metal Bellow Mechanical Seal TG640 Seres mechanical seal featuring welded metal bellowsstatic seal, The bellows adopts advanced welding technology. 45°C wave design, which makes the stress distribution more reasonable and flexibility, to ensure seals has advantages of reliable sealing and good matching property. The structureadopts a static design, which eliminates the influence of centrifugal force on the elastic element, and is suitable forhigh-speed working conditions ; the seal has excellent dynamic performance and has a wide range of applications.