Quueny JCS2A mechanical seal, designed for Sulzer and Andritz pumps, handles hazardous and 

corrosive liquids with a double-balanced design allowing pressurized/non-pressurized seal fluid. It 

ensures reliable operation under harsh conditions, reduces fluid consumption, and prevents pollution. 

Features include full pump integration, no installation measurement needed, resistance to shaft 

misalignment effects, and torque transmission via superelastic devices (no drive pins on sealing faces, eliminating startup failures). The JCS series offers various designs: JCS2P (OEM for Sulzer Ahlstar Up), JCS2M (Sulzer multi-stage pumps), JCS2-MC (Andritz MC-pumps), JCS2E (Sulzer hot fluid pumps).

  Face Material:Rotating Face: Silicon Carbide                  Pressure:-0.1 MPa to 2.0 MPa

  (hygienic grade, wear-resistant);
  Stationary Face: Tungsten Carbide (corrosion-                Speed:≤3600 RPM

  resistant).

                                                                                            Temperature:-20°C to 180°C

  Spring System:Dual-balanced spring design
  (Eliminates spring pulsation caused by shaft 

  misalignment).

  Torque Transmission:Hyperelastic element
  (No drive pins on seal faces, preventing 

  startup failure).