Description
Mechanical Seal Grundfos Type Sarlin-65L
General Information
- Type: Mechanical Seal (Pump Shaft Seal)
- Series: Sarlin Type
- Application: Grundfos Sarlin centrifugal pump systems
- Shaft Size: 65 mm
- Design: Balanced multi-spring mechanical seal (lower seal type / OEM replacement)
Specifications
- Shaft Size: 65 mm
- Operating Pressure: Up to approx. 1.6–3.0 MPa (depending on configuration)
- Temperature Range: -20°C to +120°C / up to +200°C (depending on elastomer)
- Sliding Speed: Up to 15 m/s
- End Play / Axial Tolerance: ±0.1 mm
- Design Type: Balanced mechanical seal
Materials
- Seal Faces: Silicon Carbide (SiC) / Tungsten Carbide (TC) / Carbon
- Stationary Ring: Silicon Carbide / Ceramic / TC
- Rotary Ring: Carbon / Silicon Carbide
- Elastomers: NBR / EPDM / FKM (Viton) / PTFE
- Metal Parts / Springs: Stainless Steel (SS304 / SS316)
Design Features
- Designed for Grundfos Sarlin heavy-duty pump systems
- Balanced structure for stable high-pressure operation
- Multi-spring design for uniform sealing force distribution
- High resistance to wear, corrosion, and abrasion
- Suitable for continuous industrial operation
- OEM-compatible replacement seal
Applications
- Grundfos Sarlin pump systems
- Industrial centrifugal pumps
- Water supply and distribution systems
- Wastewater and sewage systems
- Industrial process and circulation systems
- Heavy-duty pumping applications





