H12N Burgmann mechanical seals

H12N

Features

For stepped shafts
Single seal
Balanced
Dependent of direction of rotation
Torque transmission via conical spring

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

Operating range

Shaft diameter:
d1 = 10 … 80 mm (0.4″ … 3.125″)
Seal 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

H12N Materials

Seal face: Carbon graphite antimony impregnated (A)
Seat G9: Silicon carbide (Q1), Special cast CrMo steel (S)

Standards and approvals

EN 12756

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

Download catalog for more information:H12N

H12N Burgmann mechanical seals

H12N

Features

Advantages

Operating range

H12N Materials

Standards and approvals

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