Features
Equivalent to Burgmnann H12N
For stepped shafts
Single seal
Balanced
Dependent of direction of rotation
Torque transmission via conical spring
Operating range
Shaft diameter: d1 = 10 ... 80 mm (0.4" ... 3.125")
Pressure: p1 = 25 bar (363 PSI)
Temperature: t = -50 °C ... +220 °C (-58 °F ... +430 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)
Axial movement: ± 1.0 mm
Materials
Seal face: Carbon graphite antimony impregnated (A)
Seat G9: Silicon carbide (Q1), Special cast CrMo steel (S)
Recommended applications
Chemical industry
Pulp and paper industry
Water and waste water technology
Low solids content media (H12GN)
Hot water
Chemical standard pumps
Water and sewage pumps
Advantages
High flexibility due to extended selection of materials
Insensitive to low solids contents
Short Installation length possible (G16)
Economical balanced seal
Seat cooling for hot water applications available (G115)
No damage of the shaft by set screws
Audited Supplier 
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