Mechanical Seal John Crane Welded Metal Bellow Seals 680
Operating Range:

Temperature: -75° C to +290° C/-100° F to +550° F

Speed: Up to 25mps / 5, 000 FPM

Pressure: Vacuum to 25 barg/360 psig

Standard size: 18-115mm/0.75''-5.25''

Equivalent to John crane Type 680

Material:

Bellows: SS-680 Alloy 20 (UNS N08020)

End-Fittings: SS-680 Alloy 20

Insert/Primary Ring: Premium Carbon Grade; Tungsten Carbide, Silicon Carbide;

Static Seals: Fluorocarbon, EPR, PTFE- Encapsulated Fluorocarbon, Nitrile, Perfluoroelastomer

Applications: Oil,light hydrocarbon,aromatic hydrocarbon, organic solvents,weak acids, alkali,Ammonia,etc.

Metal bellow seals Size: 12mm~112mm in inch

Structural Features: single end, balanced, independent direction of rotation, bellow transmission. The bellow provides sealing faces with the closing force and also transmits the torque.
The O-ring does,not have axial movements so it has good tracing ability and strong capacity of resisting disturbance. This seal component is easy to install and adjust and has
especially good performances of being used in medium-and-low viscosity mediums.

Industrial Standards: DIN24960, ISO3069, GB6556, EN12756

Scopes of Application: widely used in petrochemical engineering, oil refining, chemical processing, chemical fiber manufacturing, food and beverage processing, pharmacy,
thermoelectricity and paper making. Designed for chemical pumps, oil pumps, screw pumps, compressors and oil extraction equipment.

We are always committed to the imported mechanical seals localization and have accumulated a wealth of experience .

Our product range includes Component Seals, Metal Bellow Seals, Cartridge Seals, Agitator seals, Dry Gas Seals and Split Seals.

To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for MFL85N/680/ Metal Bellow Mechanical Seals. To ensure you get what exactly you
need, our professional team will help you work through all the details straight to your target. With our powerful team support, you would not have to worry about anything. Our company establishes the
management system in strict accordance with the requirements of international standards and makes detailed after-sales service commitment.