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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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Clamps for Vacuum Fittings for Steel Tubing
Use these clamps to connect vacuum tube fittings. Insert two fittings into a clamp and tighten to form a secure seal.
Bolt Clamps
- For Use With: Air, Glass, Plastic Pellets, Resins, Wood Chips
- Temperature Range: Neoprene Rubber Gaskets: -20° to 190° F
Silicone Rubber Gaskets: -100° to 500° F - Tubing: Use with steel
Bolt clamps have a stainless steel strip that provides an escape route for electrostatic buildup when used in a fully-grounded system. They have fair corrosion resistance.
Neoprene Rubber Gaskets | Silicone Rubber Gaskets | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Max. Pressure | Max. Vacuum | Each | Each | ||
| 1 1/2" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 1 3/4" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 2" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 2 1/8" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 2 1/4" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 2 1/2" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 5" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 6" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 8" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 000000 |
| 10" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 000000 |
Vacuum Fittings for Steel Tubing
- For Use With: Air, Glass, Plastic Pellets, Resins, Wood Chips
- Temperature Range: -10° to 180° F
- Tubing: Galvanized Steel: Use with steel, galvanized steel
Steel: Use with steel
Use these fittings to create an air vacuum system without the hassle of brazing and welding. Insert two fittings into a clamp (sold separately) and tighten to form a secure seal.
Galvanized steel fittings have fair corrosion resistance. Fittings without a finish should only be used in noncorrosive environments.
Straight Adapters, Tube × Male Threaded Pipe
Galvanized Steel | Steel | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size | Max. Pressure | Max. Vacuum | Each | Each | ||
NPT Threads | |||||||
| 2 1/8" | 2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 2 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 3" | 3 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 3 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 4" | 4 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 5" | 5 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 00000 |
| 6" | 6 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
Straight Adapters, Tube × Female Threaded Pipe
Galvanized Steel | Steel | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size | Max. Pressure | Max. Vacuum | Each | Each | ||
NPT Threads | |||||||
| 2 1/8" | 2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 2 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 3" | 3 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 3 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
| 4" | 4 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 00000 |
| 5" | 5 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
| 6" | 6 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
Straight Adapters with Cap, Tube × Male Threaded Pipe
Straight Reducers, Tube
Galvanized Steel | Steel | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD (A) | For Tube OD (B) | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/2" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 3" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 4" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
| 5" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
| 6" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 00000000 | 000000 | 0000000 | 000000 |
90° Elbow Connectors, Tube
Galvanized Steel | Steel | |||||
|---|---|---|---|---|---|---|
| For Tube OD | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
45° Elbow Connectors, Tube
Galvanized Steel | Steel | |||||
|---|---|---|---|---|---|---|
| For Tube OD | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
Tee Connectors, Tube
Galvanized Steel | Steel | |||||
|---|---|---|---|---|---|---|
| For Tube OD | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
45° Tee Connectors, Tube
Galvanized Steel | Steel | |||||
|---|---|---|---|---|---|---|
| For Tube OD | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 00000 | 0000000 | 000000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 0000000 | 000000 | 0000000 | 000000 |