Grundfos CR Mechanical Seals-12mm 16mm 22mm
Grundfos CR Mechanical Seals-12mm 16mm 22mm
Grundfos CR Mechanical Seal | Balanced Cartridge-Type Shaft Seal
The Grundfos CR mechanical seal features a balanced cartridge-type design with unitized construction for fast, reliable installation and replacement. Its pre-assembled structure helps simplify alignment, reduce installation errors, and minimize pump downtime.
Designed with durable sealing faces, this mechanical seal provides dependable performance in demanding industrial pumping applications. In many cases, the seal can be replaced without removing the pump motor or dismantling the wetted components.
Key Features
- Cartridge-type construction – Pre-assembled as a complete unit for easier installation and alignment.
- Balanced seal design – Helps equalize hydraulic pressure across the seal faces, reducing friction and wear in high-pressure applications.
- Durable sealing faces – Common SiC/SiC, Car/Sic, TC/TC configurations provide excellent wear resistance and corrosion resistance.
- Multiple elastomer options – Available with EPDM, Viton, and other elastomer materials to suit different fluids and temperature conditions.
- Reduced maintenance time – The cartridge design allows efficient seal replacement using standard service tools.
Typical Specifications
- Temperature range: Approximately -30°C to +120°C
- Special flush configurations: Up to approximately 150°C
- Maximum system pressure: Up to 25 bar or 40 bar, depending on the specific CR pump model and size
- Seal face materials: Silicon carbide / silicon carbide
- Elastomer options: EPDM, Viton, and other materials depending on configuration
Applications
Suitable for Grundfos CR series multistage centrifugal pumps used in:
- Industrial water supply
- Pressure-boosting systems
- Boiler-feed applications
- HVAC circulation
- Process industries
- General industrial pumping systems
Compatibility Notice
Specifications and compatibility vary by pump model. Please confirm the complete pump model, mechanical seal code, pumped medium, operating temperature, and system pressure before ordering.