EagleBurgmann Type BT-FN Replacement - 12 mm TNG mechanical seal type TG155-12 with conical spring and O-ring pusher construction, the metal parts produced by Stamping. competitive price and wide range of application have made the TG155 a mass-production seals. Features Conical spring,unbalanced,O-ring pusher construction Torque transmission via conical spring, independent of direction of rotation. Stamping construction in the metal parts Recommended Applications Centrifugal pump and clean water pump Other Rotating Equipment. Operating range Shaft diameter: d1=10...40mm Pressure: p=0...1.4Mpa（203psi） Temperature: t = -40 °C ...180 °C(-40°F to 356°F) Sliding velocity: Vg≤15m/s（49.2ft/m） Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials
