How to Identify and Measure 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.
Inch fittings connect to another same-size fitting and squeeze the gasket in between for a tight seal.
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.
- For Use With: Air, Beverage, Dairy, Food, Water
- Tubing:
Inch Fittings: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Metric Fittings: Use with welded 304/304L or 316/316L stainless steel - Specifications Met: See table
Fittings with butt-weld end are also known as ferrules; they weld to tubing for a permanent, flush connection.
For Tube OD | 316/316L Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|---|
| Quick Clamp | Butt Weld | Flange OD | Lg. | Wall Thick. | Specifications Met | Certification | Each | |
Inch | ||||||||
| 8" | 8" | 8.57" | 15/16" | 0.109" | 3-A Certified 63-04 | Material Certificate with Traceable Lot Number and Test Report | 000000000 | 0000000 |
| 8" | 8" | 8.57" | 1 1/2" | 0.109" | 3-A Certified 63-04 | Material Certificate with Traceable Lot Number and Test Report | 000000000 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 8" | 8.57" | 100 psi @ 72° F | ASTM A269, ASTM A270 | 00000000 | 000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | For Tube Specifications Met | Each | |
| 8" | 8 3/4" | 304 Stainless Steel | 100 psi @ 72° F | ASTM A269, ASTM A270 | 00000000 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 8" | 8.57" | 290 psi @ 72° F | 0000000 | 0000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | Specifications Met | Each | |
| 8" | 8.57" | 316 Stainless Steel | 140 psi @ 72° F | ASME BPVC.VIII | 0000000 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 8" | 8.57" | 150 psi @ 72° F | ASTM A269, ASTM A270 | 00000000 | 0000000 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 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 |
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 |
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 |
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 |
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 |
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.
Wing nut—These clamps tighten by hand, no tools required.
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.
Clamps with a two-pin hinge require less clearance to open than other clamps. Use these for installation in tight spaces.
304 stainless steel clamps have very good corrosion resistance. 316 stainless steel clamps are more corrosion resistant than 304 stainless steel clamps. Nylon clamps are lightweight compared to stainless steel clamps.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 8" | 8.57" | 100 psi @ 72° F | 00000000 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 8" | 8.75" | 100 psi @ 72° F | 00000000 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 8" | 8.57" | 290 psi @ 72° F | 0000000 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Specifications Met | Each | |
| 8" | 8.57" | 140 psi @ 72° F | ASME BPVC.VIII | 0000000 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 8" | 8.57" | 150 psi @ 72° F | 00000000 | 0000000 |
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 |
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 |
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 |
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 |
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 |
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.
316 stainless steel clamps have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Double Claw | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Bolt Material | Max. Vacuum | Each | |
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 | 000000 |
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 |
Clamps for Vacuum Fittings for Steel Tubing
Use these clamps to connect vacuum tube fittings. Insert two fittings into a clamp and tighten to form a secure seal.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Glass, Plastic Pellets, Resins, Wood Chips
- Temperature Range: Neoprene Rubber Gaskets: -20° to 190° F
Silicone Rubber Gaskets: -100° to 500° F - Tubing: Use with steel
Bolt clamps have a stainless steel strip that provides an escape route for electrostatic buildup when used in a fully-grounded system. They have fair corrosion resistance.
- For Use With: Air, Plastic Pellets
- Tubing: Use with galvanized steel, steel
T-handle clamps allow you to quickly disassemble and reassemble your line without tools. They offer very good corrosion resistance.
| For Tube OD | Material | Gasket Material | Max. Pressure | Max. Vacuum | Each | |
| 8" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 0000000 |