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Tankatite 440

Supplier: James Walker

A resilient elastomeric core, spirally wrapped with PTFE tape and surrounded by successive braided jackets of inert polypropylene yarn.

Price Guide: POA

Specially reinforced corners are incorporated to build the section to the required packing size.

The braided structure is spirally wrapped with further layers of PTFE tape to provide an impermeable barrier to liquids and gases, then finally enclosed in a robust, abrasion resistant braid of PTFE yarns.

Typical applications
Sealing of tank lids, main hatches, inspection and cleaning covers on tankers carrying all known bulk liquid cargoes in all International Maritime Organisation (IMO) classes.


•Meets US Coast Guard requirements for lid sealing of hazardous cargoes.
•Pressure tight beyond Lloyd's and DNV test criteria.

Prime features

•Gas-tight environmental seal.
•Protects cargo from sea water ingress.
•Withstands repeated opening/closing cycles.
•Unaffected by steam and other tank cleaning systems.
•Suitable for smooth recesses in stainless steel lips as well as those with rougher surface finishes.
Chemical properties
Inert to all media in the range pH 0-14, including all known bulk cargoes in all IMO classes.

Service capabilities - static duties on tank lids
Maximum operating temperature:       +120°C.
Minimum operating temperature:         -50°C.
Maximum tank pressure:                         70kPa.

How supplied
Any square or rectangular sections of 12.5mm upwards is made to order; also endless rings to fit specific tank lid recesses. Full fitting instructions are included.