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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Aluminum One-Way-Flow Rotating Joints
- For Use With: Air, Hydraulic Oil
- Temperature Range: See table
- Maximum Pressure:
Air: 150 psi @ 72° F
Oil: See table - Maximum Vacuum: 28 in. of Hg @ 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 made of lightweight aluminum. They are a compact size for use in small air and hydraulic applications.
If your drum rotates counterclockwise as you face the connecting end, you should select a rotating joint with right-handed threads.
Rotating Threads | Stationary Threads | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Thread Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Speed, rpm | Body Dia. | Lg. | Max. Oil Pressure | Temperature Range, °F | Shaft Material | Each | |
Right-Hand Rotating Threads | ||||||||||||||
| 1/8 | __ | NPT | Male | 1/8 | NPT | Female | 1,500 | 1 1/8" | 2 13/16" | 1,000 psi @ 72° F | -20° to 250° | Steel | 0000000 | 0000000 |
| 1/4 | __ | NPT | Male | 1/4 | NPT | Female | 1,500 | 1 5/8" | 3 3/16" | 1,000 psi @ 72° F | -20° to 250° | Steel | 0000000 | 000000 |
| 3/8 | __ | NPT | Male | 3/8 | NPT | Female | 1,500 | 1 11/16" | 3 15/16" | 500 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| 1/2 | __ | NPT | Male | 1/2 | NPT | Female | 1,500 | 2 1/4" | 4 9/16" | 750 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| 3/4 | __ | NPT | Male | 3/4 | NPT | Female | 1,500 | 2 7/8" | 5 1/8" | 1,000 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| 1 | __ | NPT | Male | 1 | NPT | Female | 1,500 | 3 1/4" | 6 3/16" | 1,000 psi @ 72° F | -15° to 250° | Stainless Steel | 0000000 | 000000 |
| 1 1/2 | __ | NPT | Male | 1 1/2 | NPT | Female | 1,500 | 4 1/4" | 7 3/4" | 750 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| __ | 3/8"-24 | UNF | Male | 1/8 | NPT | Female | 3,500 | 1 1/8" | 2 13/16" | 1,000 psi @ 72° F | -20° to 250° | Steel | 0000000 | 000000 |
| __ | 5/8"-18 | UNF | Male | 1/4 | NPT | Female | 3,500 | 1 5/8" | 3 3/16" | 1,000 psi @ 72° F | -20° to 250° | Steel | 0000000 | 000000 |
| __ | 5/8"-18 | UNF | Male | 3/8 | NPT | Female | 3,500 | 1 11/16" | 3 15/16" | 500 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| __ | 3/4"-16 | UNF | Male | 1/2 | NPT | Female | 3,500 | 2 1/4" | 4 7/16" | 750 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
| __ | 1"-14 | UNF | Male | 3/4 | NPT | Female | 3,500 | 2 7/8" | 5" | 1,000 psi @ 72° F | -20° to 250° | Stainless Steel | 0000000 | 000000 |
Iron and Steel One-Way-Flow Rotating Joints
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.
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.
Rotating Threads | Stationary Threads | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Pipe Size | Thread Type | Gender | Max. Speed, rpm | Body Dia. | Lg. | For Use With | Material | Shaft Material | Each | |
Right-Hand Rotating Threads | |||||||||||||
| 1/4 | NPT | Male | 1/4 | NPT | Female | 500 | 1 11/16" | 2 13/16" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 0000000 |
| 3/8 | NPT | Male | 3/8 | NPT | Female | 80 | 1 1/2" | 2 3/4" | Hydraulic Oil, Water | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 3/8 | NPT | Male | 3/8 | NPT | Female | 500 | 1 11/16" | 2 13/16" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 1/2 | NPT | Male | 1/2 | NPT | Female | 80 | 2 1/16" | 3 1/8" | Hydraulic Oil, Water | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 1/2 | NPT | Male | 1/2 | NPT | Female | 500 | 1 15/16" | 3 1/2" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 3/4 | NPT | Male | 3/4 | NPT | Female | 350 | 2 7/16" | 3 3/4" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 1 | NPT | Male | 1 | NPT | Female | 250 | 3 1/8" | 4 1/2" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 000000 |
| 1 1/2 | NPT | Male | 1 1/2 | NPT | Female | 175 | 3 15/16" | 5 1/2" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 00000000 |
| 2 | NPT | Male | 2 | NPT | Female | 150 | 4 7/16" | 6 3/8" | Air, Hydraulic Oil | Nickel-Plated Steel | Nickel-Plated Steel | 00000000 | 00000000 |