With multiple sizes and configurations available, our inventory of stainless steel tri-clamp fittings is meant to serve the brewery, winery, and food and beverage industries with leak-proof connections. In addition to these core markets, tri-clamp fittings and sanitary tri clamp fittings are widely used in biopharmaceutical and pharmaceutical processing, biotech labs, dairy and milk processing, cosmetics and personal care production, nutraceuticals, cannabis extraction, chemical processing, water purification and RO systems, dairy and CIP/SIP systems, and semiconductor-support utilities. These applications benefit from the cleanability and rapid assembly that tri clamp fittings (also known as tri clover fittings) provide for hygienic piping systems.

Sizes range from 1/4” to 6” with 90° and 45° elbows also available for piping systems on a bend. Whether a standard or custom step-up or step-down configuration, Rubber Fab’s tri-clamp fittings all include a heat trace number for easy traceability. For engineers who need more detailed specifications, our sanitary tri clamp fittings and tri clover fittings are available in common clamp flange outside diameters that align with ASME BPE and industry norms.

Typical clamp ferrule sizes include 1/2” (true 0.50 tube) through 6” with matching clamp OD dimensions (for example: 1/2” and 3/4” share a 0.984” clamp OD; 1” uses 1.984” clamp OD; 1.5” uses 1.984” clamp OD; 2” uses 2.516” clamp OD; 2.5” uses 3.047” clamp OD; 3” uses 3.579” clamp OD; 4” uses 4.682” clamp OD; 6” uses 6.570” clamp OD). Weld ferrules are offered in short and long lengths with standard wall or heavy wall options and can be supplied with bevels suitable for orbital or manual TIG welding. Surface finish options for sanitary tri clamp fittings include mill finish or electropolished to 10–12 RA for high-purity service.

Fittings are manufactured in 316L stainless steel and can be electropolished (in 10–12 RA). MTRs and heat trace numbers are provided for easy traceability, and gaskets can be specified in EPDM, FKM, PTFE, PTFE envelope, silicone, and other elastomers to match your media and temperature range. To learn more about our available hoses to make a complete hose assembly, click here. If you need to confirm compatibility, a tri clamp gasket size chart is available in our resources section to match gasket IDs/ODs to clamp and ferrule sizes. This chart is the quickest way to verify the correct gasket for tri clamp fittings and tri clover fittings across the full size range.

Detailed specifications and dimensions for tri-clamp fittings

• Materials: 316L stainless steel standard; other alloys on request for specific chemical or temperature requirements.
• Sizes: 1/4” through 6” tube sizes for tri clamp fittings; matching clamp flange ODs per industry standards to ensure interchangeability with existing sanitary tri clamp fittings.
• Ferrules: Weld ferrules offered in short (stub) and long lengths; standard and heavy wall; orbital-weld compatible bevels; options for ASME BPE compliant dimensions.
• Elbows and tees: 90° and 45° elbows, straight tees, reducing tees, and step-up/step-down configurations to adapt between sizes while maintaining hygienic flow.
• Surface finish: As-fabricated or electropolished to 10–12 RA; additional finishing on request for high-purity lines.
• Traceability: Each component includes a heat trace number and can be furnished with MTRs.
• Compatibility: Works with standard single-pin and double-pin clamps and a full range of gasket materials.

Need a tri clamp gasket size chart? Visit our Resources page to access the complete tri clamp gasket size chart that lists gasket inner diameters, outer diameters, and compatible clamp ferrule sizes. This resource covers standard, mini, and high-pressure profiles for tri-clamp fittings and tri clover fittings, ensuring you select the correct gasket for your sanitary tri clamp fittings and weld ferrules.

To learn more about our available hoses to make a complete hose assembly, click here.