Description
Mechanical Seal Grundfos Type GLF-01
General Information
- Type: Mechanical Seal (Pump Shaft Seal)
- Application: Grundfos centrifugal pump series
- Compatibility: GLF pump systems and equivalent models
- Available Sizes: 12 mm & 16 mm shaft diameter
- Design: Compact single mechanical seal
Specifications
- Shaft Sizes: 12 mm / 16 mm
- Operating Pressure: Up to approx. 10–16 bar (depending on material configuration)
- Temperature Range: -20°C to +180°C (depending on elastomer selection)
- Sliding Speed: Up to 10–12 m/s
- Design Type: Single spring, unbalanced mechanical seal
Materials
- Seal Faces: Carbon / Silicon Carbide (SiC) / Ceramic
- Stationary Ring: Ceramic / Silicon Carbide
- Rotary Ring: Carbon / Silicon Carbide
- Elastomers: NBR / EPDM / FKM (Viton)
- Metal Components / Spring: Stainless Steel (SS304 / SS316)
Design Features
- Compact and simple construction
- Easy installation and replacement
- Reliable sealing performance for clean and light fluids
- Stable operation under continuous duty
- Available in multiple shaft sizes (12 mm & 16 mm)
- Cost-effective replacement solution
Applications
- Grundfos GLF pump series
- Water supply systems
- Domestic and light industrial pumping
- Cooling and circulation systems
- HVAC applications
- Clean water and low-viscosity fluids





