How to Identify and Measure Fittings
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High-Pressure Nipples for Compressed Gas
Commonly used in high-pressure welding applications, these nipples connect your tank to the inlet of a pressure regulator. One side has a threaded pipe end and the other side has a rounded end that sits inside a threaded nut (sold separately) so you can make a threaded connection.
Brass nipples have good corrosion resistance and are softer than 316 stainless steel nipples, so they're easier to thread together.
For technical drawings and 3-D models, click on a part number.
Nipples, Tank × Male Regulator
- Maximum Pressure: See table
- Maximum Temperature: 120° F
Regulator Connection | ||||||
|---|---|---|---|---|---|---|
| For Number (Max. Pressure) | Pipe Size  | Thread Type | Lg. | For Use With | Each | |
Brass—Tighten With Wrench | ||||||
| CGA 326 (3,000 psi @ 72° F) | 1/4 | NPT | 2 1/2" | Nitrous Oxide | 000000000 | 00000 |
Nuts
Female Nut
- Maximum Pressure: See table
- Maximum Temperature: 120° F
| Number | Gender | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| CGA 326 | Female | 0.830"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Nitrous Oxide | 000000000 | 00000 |