About Metal Tubing
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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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Stainless Steel High-Pressure Barbed Tube Fittings for Air and Water
- Temperature Range: See table
- Tubing: Use with firm (Durometer 75A-95A) EVA plastic, polyethylene plastic, polypropylene plastic or PVC plastic
Fittings withstand pressures up to 250 psi. They are 303 stainless steel for very good corrosion resistance.
Metric, BSPP, and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
UN/UNF (SAE Straight)
Male Threads with Gasket
| For Tube ID | Thread Size  | Material | Gasket Material | Max. Pressure | Temp. Range, °F | Number of Barbs | Each | |
UN/UNF (SAE Straight) Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0.025" | 10-32 | 303 Stainless Steel | Viton® Fluoroelastomer Rubber | 250 psi @ 72° F | -40° to 1200° F | None | 0000000 | 000000 |
| For Tube ID | Thread Size | Material | Max. Pressure | Temp. Range, °F | Number of Barbs | Each | |
UN/UNF (SAE Straight) Threads | |||||||
|---|---|---|---|---|---|---|---|
| 0.025" | 10-32 | 303 Stainless Steel | 250 psi @ 72° F | -40° to 1200° F | None | 0000000 | 000000 |
| For Tube ID | Material | Max. Pressure | Temp. Range, °F | Each | |
| 0.025" | 303 Stainless Steel | 250 psi @ 72° F | -40° to 1200° F | 00000000 | 000000 |
| For Tube ID | Material | Max. Pressure | Temp. Range, °F | Each | |
| 0.025" | 303 Stainless Steel | 250 psi @ 72° F | -40° to 1200° F | 00000000 | 000000 |
| For Tube ID | Material | Max. Pressure | Temp. Range, °F | Each | |
| 0.025" | 303 Stainless Steel | 250 psi @ 72° F | -40° to 1200° F | 00000000 | 000000 |
| For Tube ID | Material | Max. Pressure | Temp. Range, °F | Each | |
| 0.025" | 303 Stainless Steel | 250 psi @ 72° F | -40° to 1200° F | 00000000 | 000000 |
Miniature Stainless Steel Tubing
Also known as hypodermic or needle tubing, this tubing has thin walls and is made to tight tolerances for use in precision applications. It is welded with a smoothed weld bead on the inside to reduce particle buildup. Tubing connects by welding. To cut this tubing, you can use abrasive cutoff wheels and deburring tools or electrolytic cutting tools (not included).
304 stainless steel has very good corrosion resistance.
316 stainless steel has excellent corrosion resistance.
- Temperature Range: See table
- Bending Method: Tube Bender
| OD | Wall Thick. | ID | Tubing Needle Gauge | Max. Pressure | Temperature Range, °F | Temper Rating | 1 ft. | 3 ft. | |
304 Stainless Steel—For Use With Air, Natural Gas, Oil, Water | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0.032" | 0.004" | 0.025" | 21 | 2,000 psi @ 72° F | -420° to 600° | Hard | 0000000 | ||
316 Stainless Steel—For Use With Air, Natural Gas, Oil, Water | |||||||||
| 0.032" | 0.004" | 0.025" | 21 | 2,000 psi @ 72° F | -420° to 600° | Hard | 00000000 | ||