"HC" Full-Contact Floating Roof Seals

Primary Shoe Seal with Secondary Wiper Seal

Primary Shoe/Secondary Wiper

The patented ALLENTECH stainless steel mechanical shoe with its Teflon vapor barrier is the only shoe seal specifically designed for aluminum internal floating roofs. It offers a 20-year design life and excellent overall performance because of its resistance to most chemical products and ability to stand up to extreme temperature variations. Tightly spaced hoop springs exert a nearly constant force against the tank shell to maintain the seal even around peaked vertical seams and abrupt tank distortions.

The addition of a secondary elastomeric wiper seal helps to reduce emissions even further than just the primary shoe, which has excellent sealing capabilities.  Wiper seals are available in several materials depending on product service.

ALLENTECH’s various seal combinations can be retro-fitted on most existing aluminum internal floating roofs.

6350 Hedgewood Drive, Suite 100, Allentown, PA 18106
(484) 664-7887 / fax: (484) 664-7046