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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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Low-Pressure Brass and Bronze Threaded Pipe Fittings
Use these fittings in low-pressure flow applications. They have good corrosion resistance. Fittings rated for use with drinking water meet NSF/ANSI 61 safety standards.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Drinking Water, Natural Gas, Oil
- Class: 125
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.15, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges: Use Class 150 brass
| Pipe Size | Plug Construction | Max. Pressure | Material | Each | |
NPT Male | |||||
|---|---|---|---|---|---|
| 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 3/4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1 1/4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 3 | Solid | 200 psi @ 72° F | Brass | 00000000 | 000000 |
| 4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 000000 |
- For Use With: Air, Drinking Water, Natural Gas, Oil
- Class: 125
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.15, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges: Use Class 150 brass
| Pipe Size | Plug Construction | Max. Pressure | Material | Each | |
NPT Male | |||||
|---|---|---|---|---|---|
| 1/8 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1/4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 3/8 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 3/8 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1/2 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 3/4 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 3/4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1 | Solid | 200 psi @ 72° F | Brass | 00000000 | 0000 |
| 1 1/4 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1 1/4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1 1/2 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 1 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 1/2 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 2 1/2 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 3 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 3 | Solid | 200 psi @ 72° F | Brass | 00000000 | 00000 |
| 4 | Hollow | 200 psi @ 72° F | Brass | 00000000 | 000000 |
| 4 | Solid | 200 psi @ 72° F | Brass | 00000000 | 000000 |
Low-Pressure Brass Threaded Pipe Fittings with Sealant
The male threads on these fittings have a sealant applied for extra protection against leaks. Also known as Class 125 fittings, they are built for use in low-pressure applications. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Water
- Class: 125
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.15
- Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges: Use Class 150 brass
- For Use With: Air, Natural Gas, Oil, Water
- Class: 125
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.15
- Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges: Use Class 150 brass
| Pipe Size | Plug Construction | Max. Pressure | Each | |
NPT Male | ||||
|---|---|---|---|---|
| 1/8 | Solid | 200 psi @ 72° F | 0000000 | 00000 |
| 1/4 | Solid | 200 psi @ 72° F | 0000000 | 0000 |
| 3/8 | Solid | 200 psi @ 72° F | 0000000 | 0000 |
| 1/2 | Solid | 200 psi @ 72° F | 0000000 | 0000 |
| 3/4 | Solid | 200 psi @ 72° F | 0000000 | 0000 |
| 1 | Solid | 200 psi @ 72° F | 0000000 | 00000 |
| 1 1/2 | Solid | 200 psi @ 72° F | 0000000 | 00000 |
| 2 | Solid | 200 psi @ 72° F | 0000000 | 00000 |
Low-Pressure Chrome-Plated
Brass Threaded Pipe Fittings
The polished chrome plating not only has a shiny appearance, but also improves corrosion resistance. Also known as Class 125 fittings, these are for use in low-pressure pipe lines.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Class: 125
- Specifications Met: ANSI/ASME B16.15, ASTM B456
- Pipe Nipples and Pipe: Use Schedule 40 brass
| Pipe Size | Plug Construction | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | |||||
|---|---|---|---|---|---|
| 1/8 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
| 1/4 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
| 3/8 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 0000 |
| 1/2 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
| 3/4 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
| 1 | Solid | 200 psi @ 72° F | 125 psi @ 400° F | 00000000 | 00000 |
High-Pressure Brass Threaded Pipe Fittings
These fittings have the strength to handle high-pressure applications. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Water
Hollow | Solid | ||||
|---|---|---|---|---|---|
| Pipe Size | Max. Pressure | Each | Each | ||
NPT Male | |||||
| 1/8 | 1,000 psi @ 72° F | 000000000 | 00000 | 000000000 | 00000 |
| 1/4 | 1,000 psi @ 72° F | 000000000 | 0000 | 000000000 | 0000 |
| 3/8 | 1,000 psi @ 72° F | 000000000 | 0000 | 000000000 | 0000 |
| 1/2 | 1,000 psi @ 72° F | 000000000 | 0000 | 000000000 | 0000 |
| 3/4 | 1,000 psi @ 72° F | 000000000 | 00000 | 000000000 | 0000 |
| 1 | 1,000 psi @ 72° F | 000000000 | 00000 | 000000 | 00 |
High-Pressure Brass Threaded Pipe Fittings with Sealant
Not only do these fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Extreme-Pressure Brass Threaded Pipe Fittings
Extreme pressures are no problem for these heavy-duty fittings. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Water
- Specifications Met: ISO 7.1, ISO 228