Mechanical Shaft Seal 687 Metal Bellow Mechanical Seal Cartridge Seal For John Crane 680

Operational Conditions:

Mechanical seal-multiple spring which are availble in a wide varietyh of elastomers for handing practically every industril fluid. All components are held togther by a snap ring in a unized construction design and can be repaired easily on-site.

687 Mechanical Seal

For big compressors and industrial pumps

Replacing the mechanical seal of John Crane 680

Size: 14 -100 mm / 0.55"-3.94"

Temperature:-20 °C ...+220 °C

Pressure: 16 bar

Sliding velocity: 20 m/s

Axial movement: ± 0.5 mm

Materials:

Stationary Ring: TC, Silicon Carbide

Rotary Ring: Carbon ,Silicon Carbide, TC

Secondary Seal: NBR, EPDM, FKM

Bellows: Steel

Spring and Metal Parts: Steel

High Quality Multiple Spring O-ring Mechanical Seals

For extreme temperature ranges

No dynamically loaded O-Ring

Very good self cleaning effect

Suitable for low-end sterile application