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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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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
Metric 304 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Inch 316 Stainless Steel: Use with welded 304/304 L 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. 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.
304 stainless steel clamps have very good corrosion resistance.
Clamps that meet DIN 11864 or DIN 32676 adhere to international standards for sanitary quick-clamp fittings.
Clamps
304 Stainless Steel with Wing Nut
304 Stainless Steel with Bolt
| For Tube OD | For Flange OD | Max. Pressure | Specifications Met | Each | |
304 Stainless Steel with Wing Nut | |||||
|---|---|---|---|---|---|
| 12" | 12.695" | 30 psi @ 72° F | __ | 00000000 | 0000000 |
| 10mm, 16mm, 20mm | 34mm | 90 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 26mm, 32mm, 38mm | 51mm | 90 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 50mm | 64mm | 50 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 66mm | 91mm | 50 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 81mm | 106mm | 30 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 100mm | 119mm | 30 psi @ 72° F | DIN 32676 | 0000000 | 00000 |
| 125mm | 155mm | 30 psi @ 72° F | DIN 32676 | 0000000 | 000000 |
| 150mm | 183mm | 30 psi @ 72° F | DIN 32676 | 0000000 | 000000 |
304 Stainless Steel with Bolt | |||||
| 8" | 8 3/4" | 100 psi @ 72° F | __ | 00000000 | 000000 |
Gaskets and O-Rings
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 | ||||||||
| 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 | 000000 |
| 12" | 11.730" | 12.660" | 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 | ||||||||
| 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 |
| 12" | 11.730" | 12.660" | 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 |
| 10mm | 10.200mm | 34.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 16mm | 16.200mm | 34.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 20mm | 20.200mm | 34.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 26mm | 26.200mm | 50.500mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 0000 |
| 32mm | 32.200mm | 50.500mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 0000 |
| 38mm | 38.200mm | 50.500mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 0000 |
| 50mm | 50.200mm | 64.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 0000 |
| 66mm | 66.200mm | 91.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 000000 | 00000 |
| 81mm | 81.200mm | 106.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 100mm | 100.200mm | 119.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 125mm | 125.200mm | 155.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
| 150mm | 150.200mm | 183.000mm | 0.205" | -50° to 275° | Black | DIN 32676 | 0000000 | 00000 |
Silicone Rubber | ||||||||
| 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 |
| 12" | 11.730" | 12.660" | 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 |
| 10mm | 10.200mm | 36.170mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 0000 |
| 16mm | 16.200mm | 36.170mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 0000 |
| 20mm | 20.200mm | 36.170mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 0000 |
| 26mm | 26.200mm | 52.580mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 32mm | 32.500mm | 52.580mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 38mm | 38.200mm | 52.580mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 50mm | 50.200mm | 66.040mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 66mm | 66.200mm | 93.090mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 81mm | 81.200mm | 108.180mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 100mm | 100.200mm | 121.110mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 125mm | 125.200mm | 157.180mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
| 150mm | 150.200mm | 185.190mm | 5.2mm | -40° to 450° | Clear | DIN 32676, FDA Compliant 21 CFR 177.2600 | 00000000 | 00000 |
Fluoroelastomer Rubber | ||||||||
| 8" | 7.780" | 8.670" | 0.205" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
| 12" | 11.730" | 12.660" | 0.205" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 00000 |
PTFE Plastic  | ||||||||
| 8" | 7.780" | 8.670" | 0.205" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 00000 |
| 12" | 11.730" | 12.660" | 0.205" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 000000 |
| 10mm | 10.200mm | 34.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 16mm | 16.200mm | 34.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 20mm | 20.200mm | 34.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 26mm | 26.200mm | 50.500mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 32mm | 32.200mm | 50.500mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 38mm | 38.200mm | 50.500mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 50mm | 50.200mm | 64.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 66mm | 66.200mm | 91.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 81mm | 81.200mm | 106.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 100mm | 100.200mm | 119.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 00000 |
| 125mm | 125.200mm | 155.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 000000 |
| 150mm | 150.200mm | 183.000mm | 5.2mm | -100° to 500° | White | DIN 32676, FDA Compliant 21 CFR 177.1550 | 000000000 | 000000 |
O-Rings | ||||||||
EPDM Rubber | ||||||||
| 10mm | 12.000mm | 19.000mm | __ | 32° to 280° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
| 32mm | 34.000mm | 44.000mm | __ | 32° to 280° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
Viton® Fluoroelastomer Rubber | ||||||||
| 10mm | 12.000mm | 19.000mm | __ | 32° to 300° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
| 32mm | 34.000mm | 44.000mm | __ | 32° to 300° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
PTFE Plastic | ||||||||
| 10mm | 12.000mm | 19.000mm | __ | 32° to 280° | White | 3-A Certified 18-00 | 0000000 | 00000 |
| 32mm | 34.000mm | 44.000mm | __ | 32° to 280° | White | 3-A Certified 18-00 | 0000000 | 00000 |
Clamps for Claw-Clamp High-Vacuum Fittings for Stainless Steel Tubing
Connect claw-clamp high-vacuum fittings for an airtight seal. For a complete connection, you'll need four clamps and a ring (sold separately).
Double-claw clamps attach to the grooves on the fittings.
Single-claw clamps have a clamp on one end and an exposed bolt on the other. Thread the bolt-end directly into the body of pumps, valves, or other high-vacuum components.
316 stainless steel clamps have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Clamps
Double-Claw Clamp
Single-Claw Clamp
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Bolt Material | Max. Vacuum | Each | |
Double Claw | |||||||
|---|---|---|---|---|---|---|---|
Aluminum | |||||||
| 2 1/2", 3", 4" | 3.74", 4.33", 5.12" | 63, 80, 100 | ISO-K | 18-8 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 00000 |
| 6" | 7.09" | 160 | ISO-K | 18-8 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
316 Stainless Steel | |||||||
| 2 1/2", 3", 4", 6", 8", 10" | 3.74", 4.33", 5.12", 7.09", 9.45", 11.42" | 63, 80, 100, 160, 200, 250 | ISO-K | 316 Stainless Steel | 1 × 10 -8 torr @ 72° F | 00000000 | 00000 |
| 12 3/4", 16", 20" | 14.57", 17.72", 21.65" | 320, 400, 500 | ISO-K | 316 Stainless Steel | 1 × 10 -8 torr @ 72° F | 00000000 | 00000 |
Single Claw | |||||||
Aluminum | |||||||
| 2 1/2", 3", 4" | 3.74", 4.33", 5.12" | 63, 80, 100 | ISO-K | 18-8 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
| 6" | 7.09" | 160 | ISO-K | 18-8 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
Rings
Ring
Material | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Max. Temp., °F | Each | |
| 2 1/2" | 3.74" | 63 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 000000 |
| 3" | 4.33" | 80 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 000000 | 00000 |
| 4" | 5.12" | 100 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 00000 |
| 6" | 7.09" | 160 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 00000 |