The CHESTERTON® 180 High Reliability Single Cartridge Mechanical Seal provides a complete and integrated package of technical features to ensure high reliability in demanding services.

• Heavy duty, robust design makes the 180 the seal of choice for a wide range of applications.
• Universal applicability.
• Designed to be a rugged, all around performer in sealing applications. 
• 180 is a proven solution for applications ranging from light hydrocarbon service to sand slurry and heavy, hot fuel oils.

Full Featured Gland

Includes Flush, Quench and Drain connections for maximum environmental control capability.
Distributed flush arrangement maximizes cooling effect, prevents clogging and reduces thermal distortion.

Stationary Seal Design

Minimizes rotating mass and the effects of gland distortion
Accommodates stuffing box misalignment

High torque capability

Robust face cross-section combined with high strength cushioned drive and anti-rotation mechanism.

Monolithic Seal Rings

Enable close control over pressure and thermal effects. Rotary is shrouded for extra protection.

Micro-Polished O-ring Travel surface

Eliminates the chances of O-ring hang-up...even in sticky services.

Floating Throttle Bushing (optional)

Provides flow restriction during quench/drain operation.

Self-Centering Lock Ring™

Eliminates rotary seal oscillation, reduces secondary seal wear and improves dynamic tracking.