System of Measurement System of Measurement |
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Connection Style Connection Style |
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Quick Clamp |
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Butt Weld |
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Compression |
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Gasket |
Material Material |
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Shape Shape |
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![]() | Straight |
For Tube Material For Tube Material |
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Length Length | Show |
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Length Length | Hide |
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Environment Environment |
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For Use With For Use With |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Maximum Vacuum Maximum Vacuum |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Connection Type Connection Type |
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![]() | Tube |
For Tube Fabrication For Tube Fabrication |
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Interior Smoothness Interior Smoothness |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Sterilize With Sterilize With |
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Quick-Clamp Connection Type Quick-Clamp Connection Type |
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Standard |
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Expand to Connect |
Maximum Pressure Maximum Pressure |
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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High-Polish Metal Quick-Clamp Sanitary Tube Fittings

- Temperature Range: See Gaskets
The smooth finish inside these fittings makes it easy to remove product residue. Also known as aseptic and tri-clamp fittings, they connect with a gasket, a clamp, and another quick-clamp fitting for a fast and easy way to access your line. The pressure rating of the fitting will vary depending on the clamp you choose, and the temperature rating will vary based on the gasket material you choose.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).
For technical drawings and 3-D models, click on a part number.


- For Use With: Air, Beverage, Food, Water
- Tubing: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Expand-to-connect fittings are also known as nonrecess or roll-on ferrules. To connect, insert metal tubing into the fitting and use an expansion tool (sold separately) to press the tubing into the fitting wall.





Clamps with wing nut tighten by hand. Clamps with bolt tighten with a wrench. They handle higher pressures than wing-nut clamps for a stronger, more secure hold.
For Tube OD | For Flange OD | Bolt Material | Max. Pressure | For Tube Specifications Met | Each | |
304 Stainless Steel with Wing Nut | ||||||
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2 1/2" | 3.047" | __ | 400 psi @ 72 ° F | ASTM A269, ASTM A270 | 00000000 | 000000 |
304 Stainless Steel with Wing Nut, Spring Loaded | ||||||
2 1/2" | 3.047" | __ | 400 psi @ 72 ° F | ASTM A269, ASTM A270 | 0000000 | 00000 |
304 Stainless Steel with Bolt | ||||||
2 1/2" | 3.047" | 304 Stainless Steel | 1,000 psi @ 72 ° F | ASTM A269, ASTM A270 | 00000000 | 00000 |
316 Stainless Steel with Wing Nut and 2-Pin Hinge | ||||||
2 1/2" | 3.047" | __ | 700 psi @ 72 ° F | __ | 0000000 | 00000 |
White Nylon Plastic with Wing Nut | ||||||
2 1/2" | 3.047" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | 00000000 | 00000 |

Buna-N gaskets are oil resistant. EPDM gaskets resist water and steam and work well in humid environments. Silicone gaskets withstand high temperatures. Fluoroelastomer gaskets stand up to fuel, oil, and acid condensates. PTFE gaskets withstand harsh chemicals, with the exception of molten alkali metal and elemental fluorine.
For Tube OD | ID | OD | Thick. | Temp. Range, °F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
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2 1/2" | 2.400" | 3.050" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
EPDM Rubber | ||||||||
2 1/2" | 2.400" | 3.050" | 0.203" | -20° to 300° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
Silicone Rubber | ||||||||
2 1/2" | 2.400" | 3.050" | 0.203" | -40° to 450° | Clear | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
Fluoroelastomer Rubber | ||||||||
2 1/2" | 2.400" | 3.050" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
PTFE Plastic | ||||||||
2 1/2" | 2.400" | 3.050" | 0.203" | -100° to 500° | White | 3-A Certified 20-27 | 00000000 | 0000 |

For Tube OD | |||||||
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Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Includes | Each | |
2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 0000000 | 0000000 |

For Tube OD | ||||||
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Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 0000000 |
High-Polish Gasket Fittings for Stainless Steel Tubing

- For Use With: Air, Dairy, Water
- Temperature Range: See Gaskets
- Tubing:
Inch Butt-Weld Fittings and Quick-Clamp Fittings: Use with welded 304/304L or 316/316L stainless steel that meets ASTM 269 or ASTM 27
Metric Butt-Weld Fittings: Use with welded or seamless 316 stainless steel - Specifications Met:
304 Stainless Steel Adapters, Caps, and Nuts: 3-A Certified 63-04
Gaskets: See table
Join these fittings with a threaded nut and a gasket for a secure connection that grants you easy access to your line. Also known as bevel seat fittings, the fittings are beveled to fit snugly around the gasket, creating a vibration-resistant seal. Fittings are polished to a smooth finish on the interior to prevent product buildup and bacterial growth.
304 stainless steel fittings have very good corrosion resistance. They’re 3-A certified to meet sanitary design standards.
Note: For a complete connection, you’ll need a threaded straight adapter, an unthreaded straight adapter, a gasket, and a nut (all sold separately unless noted).
For technical drawings and 3-D models, click on a part number.

For Tube OD | ||||||
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Gasket Connection | Butt Weld Connection | Wall Thick. | Material | Max. Pressure | Each | |
1" | 1" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |

For Tube OD | ||||||
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Gasket Connection | Butt Weld Connection | Wall Thick. | Material | Max. Pressure | Each | |
1" | 1" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |

For Tube OD | Nut Material | Max. Pressure | Each | |
1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |

For Tube OD | ID | OD | Thick. | Temp. Range, °F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
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1" | 0.900" | 1.325" | 0.3" | -30° to 200° | Black | __ | 0000000 | 00000 |
PTFE Plastic | ||||||||
1" | 0.900" | 1.325" | 0.3" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
316 Stainless Steel/PTFE Plastic Blend | ||||||||
1" | 0.900" | 1.325" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
Nuts for Compression Fittings for Copper Tubing
Use these nuts with compression sleeves and fittings to create a strong seal on copper tubing. They are brass for good corrosion resistance.
Long nuts support more of the tube’s surface area than short nuts for a strong grip in high-vibration applications.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -65° to 250° F, except metric fittings are -40° to 200° F
- Tubing: Use with copper
- Specifications Met: UL listed, except for metric fittings
For Tube | ||||||
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OD | Wall Thick. | Nut Material | Max. Pressure | Lg. | Each | |
Long Nuts | ||||||
3/4" | 0.035" | Brass | 100 psi @ 72° F | 1 3/8" | 000000000 | 000000 |