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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.
316 stainless steel fittings have excellent corrosion resistance.
3-A certified fittings comply with sanitary standards.
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.
Straight Adapters, Tube × Bolt-On Flange Pipe
- For Use With:
316/316L Stainless Steel: Air, Beverage, Water
316 Stainless Steel: Air, Beverage, Dairy, Food, Water - Tubing: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
- Specifications Met: See Table
Fittings with bolt-on flange end connect to a same-size bolt-on flange with a gasket (sold separately) to create an access point within a line.
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Tube Flange OD | Pipe Size  | Pipe Flange OD | Bolt Circle Dia. | Dia. | No. of | Bolts Included | Specifications Met | Each | |
316/316L Stainless Steel | ||||||||||
| 1" | 1.984" | 1 | 4 1/4" | 3 1/8" | 5/8" | 4 | No | 3-A Certified 63-04 | 000000000 | 0000000 |
| 1 1/2" | 1.984" | 1 1/2 | 5" | 3 7/8" | 5/8" | 4 | No | 3-A Certified 63-04 | 000000000 | 000000 |
| 2" | 2.516" | 2 | 6" | 4 3/4" | 3/4" | 4 | No | 3-A Certified 63-04 | 000000000 | 000000 |
316 Stainless Steel | ||||||||||
| 2 1/2" | 3.047" | 2 1/2 | 7" | 5 1/2" | 3/4" | 4 | No | __ | 0000000 | 000000 |
| 3" | 3.579" | 3 | 7 1/2" | 6" | 3/4" | 4 | No | __ | 0000000 | 000000 |
| 4" | 4.682" | 4 | 9" | 7 1/2" | 3/4" | 8 | No | __ | 0000000 | 000000 |
Clamps
304 Stainless Steel with Wing Nut
304 Stainless Steel with Wing Nut, Spring Loaded
304 Stainless Steel with Bolt
316 Stainless Steel with Wing Nut and 2-Pin Hinge
316 Stainless Steel with Safety Wing Nut and 2-Pin Hinge
316 Stainless Steel with Double Bolt
316 Stainless Steel with
Recessed Nut, Hole for
Lockout, and 2-Pin Hinge
Recessed Nut, Hole for
Lockout, and 2-Pin Hinge
White Nylon Plastic with Wing Nut
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 | Specifications Met | Each | |
304 Stainless Steel with Wing Nut | |||||||
|---|---|---|---|---|---|---|---|
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 000000 |
| 2" | 2.516" | __ | 450 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 2 1/2" | 3.047" | __ | 400 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 3" | 3.579" | __ | 350 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 4" | 4.682" | __ | 200 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
304 Stainless Steel with Wing Nut, Spring Loaded | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
| 2" | 2.516" | __ | 450 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
| 2 1/2" | 3.047" | __ | 400 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
| 3" | 3.579" | __ | 350 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 200 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
304 Stainless Steel with Bolt | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | 304 Stainless Steel | 1,500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 2" | 2.516" | 304 Stainless Steel | 1,000 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 2 1/2" | 3.047" | 304 Stainless Steel | 1,000 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 3" | 3.579" | 304 Stainless Steel | 1,000 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 4" | 4.682" | 304 Stainless Steel | 1,000 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
316 Stainless Steel with Wing Nut and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 700 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 2" | 2.516" | __ | 700 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 2 1/2" | 3.047" | __ | 700 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 3" | 3.579" | __ | 580 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 500 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
316 Stainless Steel with Safety Wing Nut and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 2" | 2.516" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 3" | 3.579" | __ | 580 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 500 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
316 Stainless Steel with Double Bolt | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | 316 Stainless Steel | 2,400 psi @ 72 ° F | __ | ASME BPVC.VIII | 0000000 | 000000 |
| 2" | 2.516" | 316 Stainless Steel | 1,300 psi @ 72 ° F | __ | ASME BPVC.VIII | 0000000 | 000000 |
| 3" | 3.579" | 316 Stainless Steel | 1,300 psi @ 72 ° F | __ | ASME BPVC.VIII | 0000000 | 000000 |
| 4" | 4.682" | 316 Stainless Steel | 820 psi @ 72 ° F | __ | ASME BPVC.VIII | 0000000 | 000000 |
316 Stainless Steel with Recessed Nut, Hole for Lockout, and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 2" | 2.516" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 3" | 3.579" | __ | 580 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 500 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
White Nylon Plastic with Wing Nut | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 2" | 2.516" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 2 1/2" | 3.047" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 3" | 3.579" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
| 4" | 4.682" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
Gaskets
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1" | 0.900" | 1.980" | 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 |
| 1 1/2" | 1.400" | 1.980" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 000 |
| 2" | 1.900" | 2.520" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 000 |
EPDM Rubber | ||||||||
| 1 1/2" | 1.400" | 1.980" | 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 |
| 2" | 1.900" | 2.520" | 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 | ||||||||
| 1" | 0.900" | 1.980" | 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 |
| 1 1/2" | 1.400" | 1.980" | 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 |
| 2" | 1.900" | 2.520" | 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 | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
| 1 1/2" | 1.400" | 1.980" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
| 2" | 1.900" | 2.520" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
| 1 1/2" | 1.400" | 1.980" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
| 2" | 1.900" | 2.520" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
Gasket Fittings—Male Straight Adapters, Gasket × Standard Tube
For Tube OD | |||||||
|---|---|---|---|---|---|---|---|
| Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Includes | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 0000000 | 0000000 |
| 1 1/2" | 1 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 0000000 | 000000 |
| 2" | 2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 0000000 | 000000 |
| 2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 0000000 | 000000 |
Gasket Fittings—Female Straight Adapters, Gasket × Standard Tube
For Tube OD | ||||||
|---|---|---|---|---|---|---|
| Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 1 1/2" | 1 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 2" | 2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
Extra-Support Fittings—Male Straight Adapters, Extra-Support Tube × Standard Tube
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 1 1/2" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 00000 |
| 2" | 2.64" | 2.516" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 3" | 3.87" | 3.579" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
Extra-Support Fittings—Female Straight Adapters, Extra-Support Tube × Standard Tube
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 1 1/2" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 00000 |
| 2" | 2.64" | 2.516" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |
| 3" | 3.87" | 3.579" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 000000 |