Material
Rotary Ring：SSIC/TC
Stationary Ring：Carbon/SSIC/TC
Secondary Seal：NBR/EPDM/Viton
Spring and Metal Part：Stainless Steel
Type 511-12
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- Type 511 12
Type 511-12
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Type 511-12 Cartridge Seal To Replace Grundfos “H-”Code Seals Installed In CR,CRI,CRIE Series Vertical Multi -Stage Pumps
Type 511-12 Grundfos Pump O.E.M Mechanical Seals Balanced, cartridge O-ring seal unit with rigid torque transmission system This seal type is assembled in a cartridge unit which makes replacement safe and easy.Similar to the type D seal, the balancing makes this O-ring seal type suitable for high-pressure applications.
Features
the whole welding structure, users in the use of more convenient disassembly;
Longer working stroke design, thicker insert, can better adapt to axial installation error;
the balance coefficient is lower than peers, can withstand higher working pressure;
Parameters
Pressure：p1 = 25 bar (362 PSI)
Temperature：t = -30 °C(-22°F) …220 °C (+428°F)
Sliding velocity：vg = 20 m/s (66 ft/s)
- Dependent on medium, size and material
Application Medium
Water, oil, amorphous organic solvents such as acid, alkali and salt, etc.
Application
It is suitable to Grundfos Pumps:
Model:CR1.3.5.10.15.20.32.45.64.90
Model:CRN1.3.5.10.15.20.32.45.64.90
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