Gaskets and Sheet Jointings
Corrusafe FS Gaskets
Corrusafe FS is a fire-safe certified gasket comprising a corrugated support ring of stainless steel with dual material sealing faces.
In operation, its inner sealing envelope of PTFE provides a chemically inert surface that eliminates the risk of process contamination. The outer elements of graphite provide secondary sealing under fire conditions.
- Fire Test certification to ANSI/API 607, Fifth edition, and ISO 10497:2004. Third party tests were carried out by CEWAC/EID and witnessed by Lloyds.
- Manufactured in accordance with all relevant gasket standards to suit flange designations: ASME B16.5, BS 1560, ASME B16.47 Series A (MSS-SP44), ASME B16.47 Series B (API 605), BS EN 1092 (BS 4504); plus DIN, JIS and NF.
Flange sealing duties in aggressive environments, where it is essential to prevent leakage of flammable, corrosive or toxic media under emergency fire conditions. Corrusafe FS is recommended for pipelines and pressure vessels on steam, petrochemical, nuclear, marine and hydraulic plant, plus heat exchangers.
- Recorded zero leakage under API 607/ISO 10497 test conditions that covered preliminary hydro test, fire type-testing, and post burn leakage.
Support ring material: Stainless steel to BS EN 10088-2-1.4404 (formerly Grade 316L)
Maximum temperature (continuous operation): +260°C
Maximum operating pressure: 5MPa/50bar
Sizes: DN10 to DN1200, pressure ratings PN10 to PN40; 0.5-inch to 48-inch for ASME flange Classes 150 to 600.
For a Fire-Safe gasket with higher pressure rating, see our Metaflex® SG/Fire-Safe.