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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About Rotating Joints
Rotating joints transfer hot and cold materials from your supply line to a continuously revolving drum, roller, or other rotating equipment.
Pipe size is an industry designation, not the actual size. View information about how to measure pipe size threads.
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Selecting and Measuring Expansion Joints
For information about selecting pipe size, see Selecting and Measuring Pipe & Fittings.
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Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe
Designed for low-pressure flow applications, this pipe is also known as Schedule 40.
304 stainless steel pipe offers very good corrosion resistance. 316 stainless steel pipe has excellent corrosion resistance.
Seamless pipe has a smooth interior for unrestricted flow and is stronger than welded pipe.
Welded pipe has a weld bead on the inside.
For technical drawings and 3-D models, click on a part number.
- For Use With: Natural Gas, Oil, Steam, Water, Air
- Specifications Met: ASTM A733, ASME B1.20.1
- Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
| Lg. | Construction | Each | |
1/8 Pipe Size  | |||
|---|---|---|---|
| 8 1/2" | Seamless | 00000000 | 00000 |
1/4 Pipe Size | |||
| 8 1/2" | Seamless | 00000000 | 0000 |
3/8 Pipe Size | |||
| 8 1/2" | Seamless | 00000000 | 00000 |
1/2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
3/4 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 1/4 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 1/2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
3 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
- For Use With: Natural Gas, Steam, Oil, Water, Air
- Specifications Met: ASTM A733, ASME B1.20.1
- Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
| Lg. | Construction | Each | |
1/4 Pipe Size | |||
|---|---|---|---|
| 8 1/2" | Seamless | 00000000 | 000000 |
3/8 Pipe Size | |||
| 8 1/2" | Seamless | 00000000 | 00000 |
1/2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
3/4 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 1/4 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
1 1/2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
2 Pipe Size | |||
| 8 1/2" | Welded | 00000000 | 00000 |
Standard-Wall Steel Threaded Pipe Nipples and Pipe
Also known as Schedule 40, this pipe is designed for low-pressure applications. Use in noncorrosive applications.
Welded pipe has a weld bead on the inside.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM A733, ASME B1.20.1, ASTM A53
- Fittings: Use Class 125 or 150 Iron and Steel
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: ASTM A733, ASME B1.20.1, ASTM A53
- Fittings: Use Class 125 or 150 Iron and Steel
Thick-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Each | |
| 10 | 5 1/32" | PVC Plastic | Dark Gray | 00000000 | 0000000 |
Brass One-Way-Flow Rotating Joints
- For Use With: Oil, Steam, Water
- Maximum Temperature: 250° F
- Maximum Pressure:
Oil: 100 psi @ 72° F
Steam: 15 psi @ 250° F
Water: 750 psi @ 72° F
These joints have a rotating shaft with threads on one end that connect to a continuously revolving drum, roller, or other rotating equipment. Use them to transfer hot and cold materials from your supply line. Joints are for one-way flow and are meant to be used in pairs—one joint serves as the supply line while the other serves as the return line. Joints are brass for good corrosion resistance. For steam applications use intermittently (up to 20% of operating time).
If your drum rotates counterclockwise as you face the connecting end, you should select a rotating joint with right-handed threads. If your drum rotates clockwise as you face the connecting end, you should select a rotating joint with left-handed threads.
For technical drawings and 3-D models, click on a part number.
Rotating Threads | Stationary Threads | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Speed, rpm | Body Dia. | Lg. | Shaft Material | Each | |
Right-Hand Rotating Threads | |||||||||||
| 1 1/2 | NPT | Male | 1 1/2 | NPT | Female | 1,500 | 4 1/4" | 8 1/2" | Stainless Steel | 00000000 | 0000000 |
Iron Two-Way-Flow Rotating Joints
- For Use With: Oil, Steam, Water
- Maximum Temperature: 370° F
- Maximum Pressure:
Oil: 100 psi @ 72° F
Steam: 150 psi @ 360° F
Water: 250 psi @ 72° F
These joints have a rotating shaft with threads on one end that connect to a continuously revolving drum, roller, or other rotating equipment. Use them to transfer hot and cold materials from your supply line. They are for two-way flow and are meant to be used when you need the supply line and the return line to be on the same side of your equipment.
If your drum rotates counterclockwise as you face the connecting end, you should select a rotating joint with right-handed threads. If your drum rotates clockwise as you face the connecting end, you should select a rotating joint with left-handed threads.
For technical drawings and 3-D models, click on a part number.
Rotating Threads | Stationary Threads | Elbow Threads | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Speed, rpm | Body Dia. | Lg. | Shaft Material | Each | |
Right-Hand Rotating Threads | ||||||||||||||
| 1 | NPT | Male | 1 | NPT | Female | 1/2 | NPT | Female | 700 | 3" | 8 1/2" | Steel | 0000000 | 0000000 |
Left-Hand Rotating Threads | ||||||||||||||
| 1 | NPT | Male | 1 | NPT | Female | 1/2 | NPT | Female | 700 | 3" | 8 1/2" | Steel | 0000000 | 000000 |
Expansion Joints with Butt-Weld Ends
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Temperature Range: -20° to 800° F
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
These joints weld to unthreaded pipe or another butt-weld fitting for a leak-resistant, permanent connection. They reduce stress, vibration, and noise in metal piping systems by providing a point of flexibility to absorb movement.
For technical drawings and 3-D models, click on a part number.
Distance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Pipe OD | Pipe Size | Lg. | Compression | Expansion | Offset | Expansion Joint Type | Butt Weld End Material | Each | |
321 Stainless Steel | |||||||||
| 8 5/8" | 8 | 8 1/2" | 13/16" | 3/8" | 1/16" | Bellow | Steel | 0000000 | 000000000 |