PTFE Lined Tri-Clamp Fittings

An envelope gasket wraps a PTFE shell around an EPDM filler core, providing flexibility and chemical resistance while reducing cold flow. A unitized gasket bonds PTFE and EPDM into a single one-piece component, improving installation stability and reducing component movement. Both outperform solid PTFE-only gaskets under minor ferrule misalignment conditions.

Yes. Artesian Systems' PTFE tri-clamp gaskets comply with FDA 21CFR177.2600 and, for screen gaskets, also FDA 21CFR177.1550. Products are also approved under 3A Sanitary Standards and USDA requirements, and select products have passed U.S.P. Class VI Cytotoxicity testing for use in pharmaceutical and bioprocessing applications.

Envelope and unitized PTFE x EPDM gaskets are available in sizes from 1.5" up to 12". PTFE screen gaskets (20-micron and 100-micron) are available in sizes from 1.5" to 6". Size availability may vary by product type, so consult the individual product page or contact Artesian Systems for specific sizing requirements.

No. PTFE tri-clamp gaskets from Artesian Systems are not recommended for use with bolted clamp assemblies. They are designed specifically for standard sanitary tri-clamp connections. Using PTFE gaskets with bolted clamps may result in improper compression, cold flow, and potential sealing failure.

Artesian Systems offers PTFE tri-clamp screen gaskets in two filtration ratings: 20 micron and 100 micron. Both feature a PTFE gasket body combined with a 316L stainless steel filter screen. The 20-micron version provides finer particle retention, while the 100-micron version suits broader inline straining applications in sanitary pipelines.

PTFE x EPDM gaskets have a shelf life of 10 years from the cure date. They should be stored in original packaging in a clean, dry warehouse at 65°F to 85°F, away from direct sunlight, and at least 6 feet from electric motors to prevent premature degradation of the elastomer core.