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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 Gasket Fittings for Stainless Steel Tubing
- For Use With: Air, Dairy, Water
- Temperature Range: See Gaskets
- Tubing:
Inch Butt-Weld Fittings and Quick-Clamp Fittings: Use with welded 304/304L or 316/316L stainless steel that meets ASTM 269 or ASTM 27
Metric Butt-Weld Fittings: Use with welded or seamless 316 stainless steel
Barbed Fittings: Use with welded 304/304L or 316/316L stainless steel - Specifications Met:
304 Stainless Steel Adapters, Caps, and Nuts: 3-A Certified 63-04
Gaskets: See table
Join these fittings with a threaded nut and a gasket for a secure connection that grants you easy access to your line. Also known as bevel seat fittings, the fittings are beveled to fit snugly around the gasket, creating a vibration-resistant seal. Fittings are polished to a smooth finish on the interior to prevent product buildup and bacterial growth.
304 stainless steel fittings have very good corrosion resistance. They’re 3-A certified to meet sanitary design standards.
Note: For a complete connection, you’ll need a threaded straight adapter, an unthreaded straight adapter, a gasket, and a nut (all sold separately unless noted).
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Material | Max. Pressure | Each | |
| 1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 1 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 0000 |
| 2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 1 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| For Tube OD | ID | OD | Thick. | Temp. Range, °F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1" | 0.900" | 1.325" | 0.3" | -30° to 200° | Black | __ | 0000000 | 00000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -30° to 200° | Black | __ | 0000000 | 000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.45" | -30° to 200° | Black | __ | 0000000 | 0000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.325" | 0.3" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
316 Stainless Steel/PTFE Plastic Blend | ||||||||
| 1" | 0.900" | 1.325" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 0000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2" | 1.850" | 2 3/8" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2 1/2" | 2.340" | 2.950" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 3" | 2 7/8" | 3.475" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 4" | 3.700" | 4 1/2" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |