Tefsheet Sheet Gasketing

What is Tefsheet Sheet Gasketing?

PTFE in a pure expanded form that resists cold flow. Flexible and economical, it is fast and easy to cut and install. Supplied as pre-cut gaskets or in sheet form to cut on site as required. Tefsheet® Sheet Gasketing is available in sheet form and can be cut to size and shape to fit a wide range of flange configurations. It is made using a proprietary manufacturing process that produces a highly compressible and resilient material, which allows it to conform to irregular flange surfaces and fill small imperfections.

Pliable and conformable, this advanced gasketing material readily fills surface irregularities, and seals scored or uneven flanges, without much increase in necessary bolt load. This exceptional ability of this material to seal can be seen from the following material comparisons graph.

Once installed, the expanded PTFE sheeting compresses to around 30% of its original thickness to leave a solid uniform gasket. Due to its unique, highly fibrillated structure which gives multi-directional and high tensile strength, Tefsheet® Sheet Gasketing is extremely resistant to creep, relaxation and cold flow, unlike standard PTFE.

What are the core advantages of Tefsheet Sheet Gasketing?

Superior Sealability

Tefsheet® Sheet Gasketing is tremendously versatile, capable of near-universal application, and seals easily, tightly, and securely for the lifetime of the joint. The self-moulding and high conformability of this sheet gasketing also allows it to seal distorted or damaged flanges. The long-lasting service life of these flanges has greatly increased, especially as Tefcan® does not cause pitting and will not stick or bake to the flange surfaces. Tefsheet® Sheet Gasketing can withstand the entire pH range, pressures from vacuum up to 3,000 psi, and temperatures from -240ºC to 310ºC - remaining nonbrittle even at cryogenic states.

Economically Efficient

Tefsheet® Sheet Gasketing is soft and flexible, making it easy to handle, cut and install. It is quickly and easily torqued with low clamping force, virtually impossible to over-compress, and does not deteriorate in the joint. It will not cold flow beyond initial relaxation, which may usually occur in the first 12 hours of application, does not require bolt re-torquing, and will last indefinitely. Using this material removes the need to mitre or dove-tail large gasket sections, and it is suitable for insertion in pipeline joints and surfaces. It can also be removed easily as and when required.

Hassle-Free Tefsheet®

Tefsheet® Sheet Gasketing offers flexibility and economy. Gaskets can be purchased pre-cut and held in stock or easily cut out to shape as required. Tefcan® gaskets seal stronger and last longer for all gasketing needs across a plant. Joint sealing is improved, simplified, and faster, as it can withstand high pressures, temperatures, and corrosive materials. Significant reductions in gasket material and operating costs mean less downtime, extended leak-tight performance, and the elimination of complicated gasket inventories.

Get in Touch

Email

Reach us at
contact@vulcanseals.com

Phone

Call us at
+44 (0) 114 249 3333

Office

Vulcan Seals
The South West Centre, Troutbeck Road, S8 0JR, Sheffield, UK
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Our products are expertly designed to meet and exceed reliability, compliance and performance expectations.