FBDOperating range:Shaft diameter: φ16~ φ120mmPressure: ≤1.2MPaTemperature: -20~ 150℃Linear velocity: ≤10m/sAxial movement: ±1.0mmMaterials of seal faces and seats: Carbon graphite, Antimony carbon,Silicon carbide, Tungsten carbideStructure features:● Single seal, unbalanced, independent of direction of rotation, elastomer bellow● FBD series use single coil spring. Hard to block the spring. Reduce the compensation resistant.Used in oil, water and other weak corrosive medium.