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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Clamps for High-Polish Metal Quick-Clamp Sanitary Tube Fittings
- Temperature Range: See Gaskets or O-Rings
- Tubing:
Inch 304 Stainless Steel and Nylon Plastic: Use with welded 304/304L and 316/316L stainless steel that meets ASTM A269 or ASTM A270, except ASME BPE: Use with welded or seamless 304/304L stainless steel that meets ASTM A269 or ASTM A270
Metric 304 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Inch 316 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Metric 316 Stainless Steel: Use with welded 316/316L stainless steel
Connect quick-clamp sanitary tube fittings—also known as aseptic fittings—for a fast and easy way to access your line.
Bolt—These clamps handle higher pressures than wing-nut and lever clamps for a stronger, more secure hold. Tighten them with a wrench. Clamps with double-bolt meet ASME design standards for pressure vessels.
316 stainless steel clamps are more corrosion resistant than 304 stainless steel clamps.

For Tube OD | For Flange OD | Max. Pressure | Specifications Met | Each | |
1", 1 1/4", 1 1/2" | 1.984" | 2,400 psi @ 72° F | ASME BPVC.VIII | 0000000 | 0000000 |
2" | 2.516" | 1,300 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
3" | 3.579" | 1,300 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
4" | 4.682" | 820 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
6" | 6.57" | 210 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
8" | 8.57" | 140 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
10" | 10.57" | 100 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |

The temperature rating of the fitting will vary depending on the gasket or O-ring material you choose. Buna-N is oil resistant. EPDM resists water and steam and works well in humid environments. Silicone withstands high temperatures. Fluoroelastomer stands up to fuel, oil, and acid condensates. PTFE withstands 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 | |
Gaskets | ||||||||
---|---|---|---|---|---|---|---|---|
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 |
3" | 2.900" | 3.580" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
4" | 3.870" | 4.680" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
6" | 5.820" | 6.510" | 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 |
8" | 7.780" | 8.670" | 0.205" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
10" | 9.770" | 10.660" | 0.205" | -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 | ||||||||
1" | 0.900" | 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 |
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 |
3" | 2.900" | 3.580" | 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 |
4" | 3.870" | 4.680" | 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 |
6" | 5.820" | 6.670" | 0.203" | -20° to 300° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
8" | 7.780" | 8.670" | 0.205" | -20° to 300° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
10" | 9.770" | 10.660" | 0.205" | -20° to 300° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
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 |
3" | 2.900" | 3.580" | 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 |
4" | 3.870" | 4.680" | 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 |
6" | 5.820" | 6.510" | 0.203" | -40° to 450° | Clear | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
8" | 7.780" | 8.670" | 0.205" | -40° to 450° | Clear | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
10" | 9.770" | 10.660" | 0.205" | -40° to 450° | Clear | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
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 |
3" | 2.900" | 3.580" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
4" | 3.870" | 4.680" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
6" | 5.820" | 6.510" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
8" | 7.780" | 8.670" | 0.205" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
10" | 9.770" | 10.660" | 0.205" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
PTFE Plastic | ||||||||
1" | 0.900" | 1.980" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
1 1/2" | 1.400" | 1.980" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
2" | 1.900" | 2.520" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
3" | 2.900" | 3.580" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
4" | 3.870" | 4.680" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
6" | 5.820" | 6.510" | 0.19" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 00000 |
8" | 7.770" | 8.580" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 00000 |
10" | 9.740" | 10.570" | 0.19" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 000000 |