single spring unbalanced mechanical shaft seal replace burgmann MG912,
Mechanical Shaft Seal, Pump Mechanical Seal, Water Pump Seal,
Features
•For plain shafts
•Single spring
•Elastomer bellows rotating
•Balanced
•Independent of direction of rotation
•No torsion on bellows and spring
•Conical or cylindrical spring
•Metric and inch sizes available
•Special seat dimensions available
Advantages
•Fits into any installation space due to smallest outer seal diameter
•Important material approvals available
•Individual installation length can be achieved
•High flexibility due to extended selection of materials
Recommended applications
•Water and waste water technology
•Pulp and paper industry
•Chemical industry
•Cooling fluids
•Media with low solids content
Pressure oils for bio diesel fuels
•Circulating pumps
•Submersible pumps
•Multi-stage pumps (non-drive side)
•Water and waste water pumps
•Oil applications
Operating range
Shaft diameter:
d1 = 10 … 100 mm (0.375″ … 4″)
Pressure: p1 = 12 bar (174 PSI),
vacuum up to 0.5 bar (7.25 PSI),
up to 1 bar (14.5 PSI) with seat locking
Temperature:
t = -20 °C … +140 °C (-4 °F … +284 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)
Axial movement: ±0.5 mm
Combination material
Stationary Ring: Ceramic, Carbon, SIC, SSIC, TC
Rotary Ring: Ceramic, Carbon, SIC, SSIC, TC
Secondary Seal: NBR/EPDM/Viton
Spring and Metal Parts: SS304/SS316
WMG912 data sheet of dimension(mm)
