12 Inch Sanitary Gaskets — PTFE & FDA Approved

An envelope gasket features a PTFE outer shell encasing an EPDM core in an un-flanged construction. A unitized gasket uses a one-piece, internally bonded PTFE-to-EPDM design that reduces component movement and improves installation stability. Both offer superior performance over solid PTFE gaskets, especially under minor ferrule misalignment.

No. These gaskets are not recommended for use with bolted clamp assemblies. They are specifically designed for sanitary tri-clamp fitting connections. Using them with bolted clamps may compromise sealing performance and void compliance with specified pressure ratings.

The standard 1550 PSI service rating for sanitary clamps does NOT apply to connections 1 inch and larger using any PTFE-based gaskets due to cold flow potential. For 12 inch connections, operating pressures must be evaluated separately. Consult Artesian Systems for application-specific guidance.

Both the envelope and unitized PTFE x EPDM gaskets have a 10-year shelf life from the cure date. To maintain integrity, they should be stored in original packaging in a clean, dry environment between 65°F and 85°F, away from direct sunlight and at least 6 feet from electric motors.

These gaskets are engineered for pharmaceutical manufacturing, food and beverage processing, biotechnology and life sciences, chemical processing, and nutraceutical production. They are ideal for any industry requiring FDA-compliant, GMP-grade sealing components in tri-clamp sanitary piping systems.

Solid PTFE gaskets are prone to cold flow and creep over time, particularly in larger diameter connections, which can lead to leaks. The PTFE x EPDM hybrid design adds EPDM's elastic memory to PTFE's chemical resistance, significantly reducing creep and improving long-term seal performance and installation stability.