HW800 is a single bellows cartridge seal designed to operate reliably in services where short periods of dry running conditions occur. It is an ideal type for processing dry running conditions. Specially designed bellows and optimal face materials are used in the type HW800 seal, so it can operate effectively during periods of dry running and successfully return to sealing liquid when normal running conditions are restored.

Available with a inconel 718 bellows assembly, special manufactured face materials and a wide range of elastomers to best suit your particular application.

 ● Fit the most popular standard and enlarged seal chamber ANSI, DIN and metric pumps

 ● The welded  metal bellows design is manufactured with a 45-degree tilt edge at the bellows’ inside diameter to disperse stresses in the individual bellows plates and maximize their operating life.

OPERATING LIMITS

    Temperature: -75℃～ 200℃                 Pressure:   Vacuum to 10 bar      

       Dry-running mode: 1 bar                   Speed limits:  25m/s