Johncrane 609 Metal Bellow Rotating Mechanical Seal

The Type 606 is a rotating seal with the same high-strength design features as the Type 609. In addition, the Type 606 incorporates drive lugs under the bellows that provide added rotational drive. This reduces torsional stress on the bellows, and makes the Type 606 the ideal seal for maximum reliability and extended life in viscous or thermosetting applications.

Pressure  Vacuum to 25 bar / 360 psi

               Vacuum to 69 bar / 1,000 psi with DOUBLE-PLY bellows
              (see Basic Pressure Ratings curve on Product Specification sheet)

Speed    

Up to 25 m/s / 5,000 fpm for Types 606 and 609
              Up to 50 m/s / 10,000 fpm for Type 604

Temperature   -75 to +425 celsius degree / -100F to +800F with Flexible Graphite static packing

mechanical seals