27K Rod Seal

The Chesterton 27K is a single-acting, stacked V-Ring set with a positive rake design that provides optimum operating performance in heavy-duty hydraulic rod applications. Unlike conventional stacked sets, these designs make contact through the center to enable even loading, which minimizes friction and provides longer sealing life. 

The minimal gland pressure enables these sets to withstand greater sliding speed than conventional stacked sets. No readjustment of the seal precompression is needed after installation. The flared, pressure-sensitive lip design provides optimum sealing forces on seal rings, which are reactive to pressure, thus reducing breakaway and frictional force. 

 

The seal set is available in various material combinations to accommodate new or used equipment and can be supplied in split or solid designs.

 

The 27K is manufactured using a machining process that allows the flexibility to create any size based on equipment dimensions and minimizes tooling cost for new sizes. Each set incorporates a male and female adapter to align and support the seal rings.

 

Additional profiles have been derived from the original 27K design to address specific needs and applications in the market. These include designs for excessive clearances and deep stuffing boxes.