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.
304 stainless steel fittings have very good corrosion resistance. 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: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Metric: 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 | |||||||
|---|---|---|---|---|---|---|---|
| Quick Clamp | Butt Weld | Flange OD | Lg. | Wall Thick. | Specifications Met | Each | |
Inch | |||||||
| 3" | 3" | 3.579" | 4" | 0.065" | 3-A Certified 63-04 | 00000000 | 000000 |
| 4" | 4" | 4.682" | 4" | 0.083" | 3-A Certified 63-04 | 00000000 | 00000 |
For Tube OD | ||||||||
|---|---|---|---|---|---|---|---|---|
| Quick Clamp | Butt Weld | Flange OD | Lg. | Wall Thick. | Specifications Met | Certification | Each | |
Inch | ||||||||
| 3" | 3" | 3.579" | 4" | 0.065" | 3-A Certified 63-04 | Material Certificate with Traceable Lot Number and Test Report | 000000000 | 000000 |
| 4" | 4" | 4.682" | 4" | 0.083" | 3-A Certified 63-04 | Material Certificate with Traceable Lot Number and Test Report | 000000000 | 000000 |
Recessed Nut, Hole for
Lockout, and 2-Pin Hinge
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 | |||||||
|---|---|---|---|---|---|---|---|
| 3" | 3.579" | __ | 350 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 000000 |
| 4" | 4.682" | __ | 200 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
304 Stainless Steel with Wing Nut, Spring Loaded | |||||||
| 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 | |||||||
| 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 | |||||||
| 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 | |||||||
| 3" | 3.579" | __ | 580 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 500 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
316 Stainless Steel with Double Bolt | |||||||
| 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 | |||||||
| 3" | 3.579" | __ | 580 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
| 4" | 4.682" | __ | 500 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
White Nylon Plastic with Wing Nut | |||||||
| 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 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 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 | 00000 |
| 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 |
EPDM Rubber | ||||||||
| 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 |
Silicone Rubber | ||||||||
| 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 |
Fluoroelastomer Rubber | ||||||||
| 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 |
PTFE Plastic | ||||||||
| 3" | 2.900" | 3.580" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
| 4" | 3.870" | 4.680" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 3" | 3.87" | 3.579" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 0000000 |
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 3" | 3.87" | 3.579" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 0000000 | 0000000 |
Butt-Weld Fittings for Stainless Steel Tubing
- For Use With: See table
- Max. Temperature: 250° F, except hose fittings are unrated.
- Tubing:
304 Stainless Steel: Use with 304/304L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
316 Stainless Steel: Use with 316/316L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except ASME BPE and DIN EN 10357 fittings with only ASTM A269 or ASTM A270 - Specifications Met: See table
Weld these fittings to tubing for a permanent, flush connection that permits smooth flow through a line.
316 stainless steel fittings have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
316/316L Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD (A) | For Tube OD (B) | Max. Pressure | Wall Thick. | For Use With | Specifications Met | Certification | Each | ||
Polished | |||||||||
| 2 | 3/4" | 1/2" | 700 psi @ 72° F | 0.065" | Air, Deionized Water, Pharmaceuticals, Water | ASME BPE | Material Certificate with Traceable Lot Number and Test Report | 0000000 | 0000000 |
| 2 | 1" | 3/4" | 700 psi @ 72° F | 0.065" | Air, Deionized Water, Pharmaceuticals, Water | ASME BPE | Material Certificate with Traceable Lot Number and Test Report | 0000000 | 000000 |