The Vulcan Seals Type 1688 is a highly robust, 'O'-ring mounted single wave-spring "non-pusher" seal design, with a very narrow cross-section and compact working length.

The drive from the shaft and set of working lengths is by set screws to the shaft, providing bi-directional rotation capability. The single wave-spring provides even closing force to the sealing faces ensuring higher sealing performance and short working height compared to a single spring seal design.

The Vulcan Seals Type 1688 features a monolithic steelhead, optimised for abrasion resistance and high-temperature applications.

Vulcan Seals Type 1688 complete seal is supplied with the Vulcan Seals Type 1688 'O'-ring stationary to suit UK imperial housings commonly used in rotary lobe pumps.

Vulcan Seals Type 1688

Vulcan Seals Type 1688
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