Tri Clamp Gaskets for Dairy Processing

Yes. The BUNA-N and VITON/FKM screen gaskets are explicitly approved by 3-A Sanitary Standards and USDA, and comply with FDA 21CFR177.2600 and 21CFR177.1550. PTFE-based gaskets comply with FDA 21CFR177.2600 and GMP guidelines. All products have passed U.S.P. Class VI Cytotoxicity testing, making them suitable for sanitary dairy and food processing pipelines.

Screen gaskets (BUNA-N, PTFE, VITON/FKM) are available from 1.5" up to 6". The PTFE x EPDM Envelope and Unitized Gaskets are available in a wider range: 1.5", 2", 3", 4", 6", 8", 10", and 12". This ensures compatibility across most standard sanitary tri clamp ferrule connections used in dairy processing facilities.

Screen gaskets incorporate a 316L stainless steel mesh (rated at 5, 20, or 100 microns) within the gasket body, enabling inline filtration while sealing the connection. Solid envelope and unitized gaskets provide a full sealing surface without filtration capability, combining chemical resistance (PTFE contact face) with the sealing memory and elasticity of an EPDM core to prevent leaks and cold flow.

Screen gaskets are available in three filtration ratings: 5 micron, 20 micron, and 100 micron. The 316L stainless steel screens are embedded within the gasket to provide inline filtration at each pipe connection. A finer micron rating captures smaller particulates — 5 micron is ideal for precision filtration, while 100 micron is suited for coarser straining applications.

No. For connections 1" and larger, the standard 1550 PSI sanitary clamp service rating does not apply to PTFE-based gaskets due to the risk of cold flow. This restriction does not apply to fractional sizes (1/2" and 3/4"), which feature a recessed, fully contained design. PTFE gaskets are also not recommended for use with bolted clamp assemblies.

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