Ultra-Chemical-Resistant Metal-Detectable PTFE Gaskets
for Extra-Support Quick-Clamp Sanitary Tube Fittings

Made from a blend of PTFE and 316 stainless steel, these gaskets hold up to the harsh chemicals, high pressures, and high temperatures used in sanitary processes. They’ll set off metal detectors if they fall into your line, so you can prevent contaminated material from leaving your facility. This helps you comply with Hazard Analysis and Critical Control Point (HACCP) programs. Use them with extra-support quick-clamp sanitary tube fittings (also known as I-line fittings) to create a tight, leak-proof seal.
These gaskets are more durable and last longer than standard PTFE seals. To protect against leaks, they won’t warp or deform, even in steam or hot oil, and they won’t degrade from harsh cleaners. They’re also chemically inert, so they won’t contaminate your line by absorbing and leaching substances (except when used with molten alkali metal or elemental fluorine). They’re often used in applications where purity is essential, such as in food, pharmaceutical, or biotech facilities.
The interior of these gaskets is extremely smooth, so they’re easy to clean and bacteria has nowhere to grow. They’re Animal Derived Ingredient (ADI) free, meaning they are made without animal products, and they’re FDA compliant for direct contact with food. Made to the highest standards of sanitary design, these gaskets are 3-A and USP VI certified. They’re also tested to USP 87 standards, which are created by the United States Pharmacopoeia (USP) for safety in biological applications.
For technical drawings and 3-D models, click on a part number.
For Tube OD | ID | OD | Thick. | Temperature Range, °F | Hardness | Hardness Rating | Color | Specifications Met | Each | |
1" | 0.91" | 1.27" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 000000 |
1 1/2" | 1.41" | 1.76" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
2" | 1.88" | 2.26" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
2 1/2" | 2.40" | 2.77" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
3" | 2.88" | 3.32" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
4" | 3.89" | 4.30" | 0.072" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
Oil-Resistant Buna-N Gaskets for Extra-Support Quick-Clamp Tube Fittings

Designed specifically to fit Extra-Support Quick-Clamp Sanitary Tube Fittings, these Buna-N gaskets provide a tight seal in pressure applications. All are 3-A certified as meeting sanitary design standards.
For technical drawings and 3-D models, click on a part number.
For Tube OD | ID | OD | Thick. | Temperature Range, °F | Hardness | Hardness Rating | Color | Specifications Met | Each | |
1" | 0.896" | 1.196" | 3/32" | -30° to 200° | Durometer 70A | Hard | Black | 3-A Certified 63-04 | 0000000 | 00000 |
1 1/2" | 1.438" | 1 3/4" | 3/32" | -30° to 200° | Durometer 70A | Hard | Black | 3-A Certified 63-04 | 0000000 | 0000 |
2" | 1.860" | 2.240" | 3/32" | -30° to 200° | Durometer 70A | Hard | Black | 3-A Certified 63-04 | 0000000 | 0000 |
3" | 2.880" | 3.300" | 3/32" | -30° to 200° | Durometer 70A | Hard | Black | 3-A Certified 63-04 | 0000000 | 0000 |