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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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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 | 4935K136 | 000000 | 5099K61 | 000000 |
| 2 1/2" | 2 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K137 | 00000 | 5099K62 | 00000 |
| 3" | 3 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K138 | 00000 | 5099K63 | 00000 |
| 3 1/2" | 3 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K139 | 00000 | 5099K64 | 00000 |
| 4" | 4 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K141 | 00000 | 5099K65 | 00000 |
| 5" | 5 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K142 | 000000 | 5099K66 | 00000 |
| 6" | 6 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K143 | 000000 | 5099K67 | 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 | 4935K144 | 000000 | 5099K71 | 000000 |
| 2 1/2" | 2 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K145 | 00000 | 5099K72 | 00000 |
| 3" | 3 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K146 | 00000 | 5099K73 | 00000 |
| 3 1/2" | 3 1/2 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K147 | 000000 | 5099K74 | 000000 |
| 4" | 4 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K148 | 000000 | 5099K75 | 00000 |
| 5" | 5 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K149 | 000000 | 5099K76 | 000000 |
| 6" | 6 | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K151 | 000000 | 5099K77 | 000000 |
Straight Adapters with Cap, Tube × Male Threaded Pipe
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 | 4487K43 | 000000 | 4615K43 | 000000 |
| 1 3/4" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K44 | 00000 | 4615K44 | 00000 |
| 2" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K45 | 00000 | 4615K45 | 00000 |
| 2 1/8" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K54 | 00000 | 4615K54 | 00000 |
| 2 1/4" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K56 | 00000 | 4615K56 | 00000 |
| 2 1/2" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K46 | 00000 | 4615K46 | 00000 |
| 3" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K48 | 00000 | 4615K48 | 00000 |
| 5" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K32 | 00000 | 4615K32 | 00000 |
| 6" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K11 | 00000 | 4615K11 | 000000 |
| 8" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K18 | 00000 | 4615K18 | 000000 |
| 10" | Galvanized Steel | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4487K64 | 000000 | 4615K64 | 000000 |
T-Handle Clamps
- For Use With: Air, Plastic Pellets
- Tubing: Use with galvanized steel, steel
T-handle clamps allow you to quickly disassemble and reassemble your line without tools. They offer very good corrosion resistance.
| For Tube OD | Material | Gasket Material | Max. Pressure | Max. Vacuum | Each | |
| 1 1/2" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K41 | 000000 |
| 2" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K45 | 00000 |
| 2 1/4" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K47 | 00000 |
| 2 1/2" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K49 | 00000 |
| 3" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K53 | 00000 |
| 3 1/4" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K54 | 00000 |
| 5" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K65 | 00000 |
| 6" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K71 | 00000 |
| 8" | 304 Stainless Steel | Gum Rubber | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 6815K77 | 000000 |