Features For stepped shafts Single seal Balanced Super-Sinus-spring or multiple springs rotating Independent of direction of rotation Integrated pumping device available (H7F, H75F) Variant with seat cooling available (H75G115) Advantages Universal application opportunities (standardization) Efficient stock keeping due to easily interchangeable faces Extended selection of materials Flexibility in torque transmissions Self cleaning effect Short Installation length possible (G16) Operating range Shaft diameter: d1 = 14 ... 100 mm (0.55" ... 3.94") (Single spring: d1 = max. 100 mm (3.94")) Pressure: p1 = 80 bar (1,160 PSI) for d1 = 14 ... 100 mm, p1 = 25 bar (363 PSI) for d1 = 100 ... 200 mm, p1 = 16 bar (232 PSI) for d1 > 200 mm Temperature: t = -50 °C ... 220 °C (-58 °F ... 428 °F) Sliding velocity: vg = 20 m/s (66 ft/s) Axial movement: d1 up to 22 mm: ± 1.0 mm d1 24 up to 58 mm: ± 1.5 mm d1 from 60 mm: ± 2.0 mm Materials Seal face: Silicon carbide (Q1, Q2), Carbon graphite antimony impregnated (A), Aluminium oxide (V), CrMo cast steel (S) Seat G9: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1*, Q2*) Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K) Springs: CrNiMo steel (G) Metal parts: CrNiMo steel (G), Duplex (G1) * Cannot be combined with seal face made of S