Safematic SE2-77 Cartridge Mechanical Seal for Sulzer APP APT Pulp and Paper Pumps

Description:

Operating Limits:

• Shaft Diameter : 77 mm

• Temperature Range: -20°C to +180°C (depending on elastomer selection)

• Maximum Pressure:

  • Product Pressure: Up to 20 bar (2.0 MPa)

  • Barrier Pressure: Up to 25 bar (2.5 MPa)

• Maximum Speed: Up to 20 m/s (approx. 5000 RPM)

Materials:

• Seal Faces (Inner / Outer):

  • Silicon Carbide vs. Silicon Carbide (SiC / SiC) — Standard for abrasive/pulp applications

  • Carbon vs. Silicon Carbide (Car / SiC)

• Secondary Seals (O-Rings): FKM (Viton), EPDM, PTFE, FFKM

• Springs & Metal Components: Stainless Steel 316 (1.4404), Hastelloy C