Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
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.

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 |

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 |

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 | 4935K89 | 000000 | 5099K51 | 000000 |
| 3" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K98 | 00000 | 5099K52 | 00000 |
| 3 1/2" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K99 | 00000 | 5099K53 | 00000 |
| 3 1/2" | 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K132 | 00000 | 5099K54 | 00000 |
| 4" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K133 | 00000 | 5099K55 | 00000 |
| 5" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K134 | 000000 | 5099K56 | 000000 |
| 6" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K135 | 000000 | 5099K57 | 000000 |

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 | 4935K12 | 000000 | 5099K11 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K28 | 00000 | 5099K12 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K29 | 00000 | 5099K13 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K34 | 00000 | 5099K14 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K36 | 00000 | 5099K15 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K37 | 000000 | 5099K16 | 00000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K39 | 000000 | 5099K17 | 000000 |

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 | 4935K41 | 000000 | 5099K21 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K42 | 00000 | 5099K22 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K44 | 00000 | 5099K23 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K45 | 00000 | 5099K24 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K46 | 00000 | 5099K25 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K47 | 00000 | 5099K26 | 00000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K49 | 000000 | 5099K27 | 00000 |

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 | 4935K58 | 000000 | 5099K31 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K59 | 00000 | 5099K32 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K68 | 00000 | 5099K33 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K69 | 000000 | 5099K34 | 00000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K71 | 000000 | 5099K39 | 000000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K72 | 000000 | 5099K36 | 000000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K73 | 000000 | 5099K37 | 000000 |

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 | 4935K74 | 000000 | 5099K41 | 000000 |
| 2 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K75 | 00000 | 5099K42 | 00000 |
| 3" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K76 | 00000 | 5099K43 | 00000 |
| 3 1/2" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K77 | 00000 | 5099K44 | 000000 |
| 4" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K78 | 000000 | 5099K45 | 00000 |
| 5" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K79 | 000000 | 5099K46 | 000000 |
| 6" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K88 | 000000 | 5099K47 | 000000 |
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.

- 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 |


























