Mechanical Seals
Grundfos — Star Type
Star-drive splined seal assembly for newer generation Grundfos CR pumps.
Specialized splined 'star-drive' mechanical seal cartridge designed for new generation Grundfos CR and CRN multistage pumps. The hex/star drive mechanism provides positive torque transfer directly from the shaft sleeve.
Product photo · Grundfos — Star Type
Specifications
Technical profile
- Drive mechanism
- Splined hex / star positive torque engagement
- Compatibility
- New generation Grundfos CR 10, 15, 20, 32, 45, 64, 90, 150 series
- Shaft size
- 12 mm, 16 mm, 22 mm star-drive sleeves
- Face materials
- Sintered Silicon Carbide vs Silicon Carbide (SiC/SiC)
- Secondary seal
- Peroxide-cured EPDM or FKM O-rings
- Pressure rating
- Up to 30 bar high-pressure multistage rating
- Temperature
- -30 °C to +180 °C
Specifications are typical and vary by variant. Share your duty conditions for an exact recommendation.
Key benefits
Why this product
- Star-drive spline eliminates drive collar slipping under high start-up torque
- Pre-assembled cartridge design allows seal replacement in under 15 minutes
- Optimized hydraulic balance prevents face popping during pressure surges
- Cold-chain safe storage ensures elastomer freshness upon installation
Applications
Typical industries
FoodPharmaChemicalBreweries
In the same range
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Need this grundfos — star type for your line?
Share your duty conditions and drawings — our team responds with a technical recommendation and a firm quote.