Our ISP MA390 has the same dimensions with the original Burgmann MA390 cartridge seal,could replace the original seal well,but with higher cost performance.
Features:
Cartridge
Balanced
Independent of direction of rotation
Stationary multiple springs
Springs and pin located on the atmospheric side
Recommended applications:
Petrochemical industry
Chemical industry
Pharmaceutical industry
Pulp and paper industry
Water and waste water technology
Food and beverage industry
Universally applicable
Centrifugal pumps
Eccentric screw pumps
Process pumps
Operating range:
MA290 / MA390:
Pressure: p = … 16 bar (232 PSI)
Temperature:
t = -20 °C …160 °C (-4 °F ... 320 °F) (oil),
0 °C ... 60 °C (32 °F ... 140 °F) (water)
Sliding velocity:
vg = max. 20 m/s (66 ft/s)
Viscosity: 0.5 Pa·s
Solids content: 0.3 %
Materials:
Seal face (MA290, MA390): High density carbon graphite
Seal face (MA291, MA391): Silicon carbide (Q1)
Seat (MA290/291, MA390/391): Silicon carbide (Q1)
Metal parts: CrNiMo steel (G)
Secondary seals: FKM (V)
Generally pump seals
Single spring mechanical seal
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