Connection Style Connection Style |
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| Threaded |
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| Yor-Lok |
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| Quick Clamp |
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| Flared |
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| Flanged |
Material Material |
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For Use With For Use With | Show |
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For Use With For Use With | Hide |
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System of Measurement System of Measurement |
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Fitting Material Fitting Material |
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Maximum Pressure Maximum Pressure |
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Minimum Temperature Minimum Temperature |
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Maximum Temperature Maximum Temperature |
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Cover Material Cover Material |
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Braid Material Braid Material |
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External Reinforcement External Reinforcement |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Thread Size Thread Size |
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Interior Texture Interior Texture |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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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About Hose
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Through-Wall Fittings for High-Vacuum Chambers
- For Use With: See table
- Environment Temperature Range: 32° to 300° F
- Process Temperature Range: -325° to 995° F
- Tubing: Use with 304/304L or 316/316L stainless steel
- Specifications Met: See table
Transfer liquids and gasses into high-vacuum chambers with these assembled fittings, also known as feedthroughs. Because they form a tight seal on chamber walls, they are often used in coating, cooling, and leak-testing applications where negative pressure (vacuum) must be maintained. These fittings are ready to install and include high-vacuum fittings, metal tubing, and Yor-lok tube fittings. On each end, the Yor-lok fittings include a nut and two sleeves that grip your system’s stainless steel tubing. The entire assembly is stainless steel, so it resists rusting. These fittings are not for use in pressure applications.
Quick-clamp fittings meet ISO 2861, which specifies the dimensions of quick-clamp high-vacuum fittings, clamps, and rings to ensure vacuum tightness. These fittings require a clamp and ring (each sold separately) to complete the connection.
Flanged fittings require a gasket and bolt kit (each sold separately) to complete the connection.
For Tube | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Flange OD | Trade Number | OD | Wall Thick. | Lg. | Max. Vacuum | Material | Specifications Met | Each | |
For Use With Liquid Helium, Liquid Methane, Liquid Nitrogen, Liquid Oxygen | |||||||||
| 1.18" | 16 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 0000000 |
| 1.57" | 25 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
| 2.16" | 40 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
| 2.95" | 50 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
Bolt Hole | For Tube | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Flange OD | Trade Number | Bolt Circle Dia. | Dia. | No. of | OD | Wall Thick. | Lg. | Max. Vacuum | Material | Each | |
For Use With Liquid Helium, Liquid Methane, Liquid Nitrogen, Liquid Oxygen | |||||||||||
| 1 21/64" | 16 | 1 1/16" | 11/64" | 6 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -13 torr @ 72° F | 304 Stainless Steel | 0000000 | 0000000 |
| 2 3/4" | 40 | 2 5/16" | 17/64" | 6 | 1/4" | 0.028"-0.095" | 9" | 1 × 10 -13 torr @ 72° F | 304 Stainless Steel | 0000000 | 000000 |
Material | ||||||
|---|---|---|---|---|---|---|
| For Flange OD | Trade Number | O-Ring | Inner Ring | Max. Vacuum | Each | |
| 1.18" | 16 | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 00000000 | 00000 |
| 1.57" | 25 | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 0000 |
| 2.16" | 40 | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 2.95" | 50 | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| For Flange OD | Gasket Material | Specifications Met | Each | |
| 1 21/64" | Copper | ASTM F68 | 0000000 | 00000 |
Liquid Nitrogen Hose with Threaded Fittings
- Temperature Range: -320° to 1,500° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: 321 Stainless Steel with 304 Stainless Steel Braid
- Both Fittings Swivel Until Tightened
Transfer liquid nitrogen across a wide temperature range with this hose. Hose comes cleaned, capped, and bagged to meet CGA (Compressed Gas Association) G4.1. The braid provides good flexibility in high-vibration applications. Fittings swivel until tightened for easy installation.
Hose with Cover—A cover surrounds the braid to protect it from damage.
| Pipe Size | Thread Size | ID | OD | Bend Radius | Max. Pressure | Other Lengths, ft. | 1 1/2 ft. | 3 ft. | 4 ft. | 6 ft. | 8 ft. | 10 ft. | 12 ft. | |
304 Stainless Steel NPT Male × 316 Stainless Steel 45° Flared UNF Female | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8 | 3/4"-16 | 1/2" | 13/16" | 4 7/8" | 1,160 psi @ 72° F | 2 to 25 ft. | 00000000 | |||||||
316 Stainless Steel 45° Flared UNF Female × 316 Stainless Steel 45° Flared UNF Female | ||||||||||||||
| __ | 3/4"-16 × 3/4"-16 | 1/2" | 13/16" | 4 7/8" | 1,160 psi @ 72° F | 2 to 25 ft. | 00000000 | |||||||
316 Stainless Steel NPT Male × 316 Stainless Steel 45° Flared UNF Female | ||||||||||||||
| 1/2 | 3/4"-16 | 1/2" | 13/16" | 4 7/8" | 1,160 psi @ 72° F | 2 to 25 ft. | 00000000 | |||||||
| Pipe Size | Thread Size | ID | OD | Bend Radius | Max. Pressure | Cover Material | Other Lengths, ft. | 1 1/2 ft. | 3 ft. | 4 ft. | 6 ft. | 8 ft. | 10 ft. | 12 ft. | |
304 Stainless Steel NPT Male × 316 Stainless Steel 45° Flared UNF Female | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8 | 3/4"-16 | 1/2" | 15/16" | 4 7/8" | 1,160 psi @ 72° F | 304 Stainless Steel | 2 to 25 ft. | 00000000 | |||||||
316 Stainless Steel 45° Flared UNF Female × 316 Stainless Steel 45° Flared UNF Female | |||||||||||||||
| __ | 3/4"-16 × 3/4"-16 | 1/2" | 15/16" | 4 7/8" | 1,160 psi @ 72° F | 304 Stainless Steel | 2 to 25 ft. | 00000000 | |||||||
316 Stainless Steel NPT Male × 316 Stainless Steel 45° Flared UNF Female | |||||||||||||||
| 1/2 | 3/4"-16 | 1/2" | 15/16" | 4 7/8" | 1,160 psi @ 72° F | 304 Stainless Steel | 2 to 25 ft. | 00000000 | |||||||
Liquid Nitrogen Hose with Tube and Threaded Fittings
- Temperature Range: -325° to 1,250° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: 316 Stainless Steel with 304 Stainless Steel Braid
The Yor-Lok tube fitting is also known as an instrumentation fitting. It has two sleeves (double ferrules) that bite into metal tubing for a strong seal. Use this air-cleaned hose to transfer liquid nitrogen across a wide temperature range.
| For Tube OD | Pipe Size | ID | OD | Bend Radius | Max. Pressure | Other Lengths, ft. | 1 ft. | 2 ft. | 3 ft. | 4 ft. | |
316 Stainless Steel Yor-Lok × 316 Stainless Steel Threaded NPT Male | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" | 1/4 | 1/4" | 9/16" | 5" | 4,600 psi @ 72° F | 1 to 25 | 0000000 | ||||
| 3/8" | 3/8 | 3/8" | 3/4" | 5 1/2" | 3,800 psi @ 72° F | 1 to 25 | 0000000 | ||||
| 1/2" | 1/2 | 1/2" | 13/16" | 5 3/4" | 2,600 psi @ 72° F | 1 to 25 | 0000000 | ||||
Liquid Nitrogen Hose with Tube Stem Fittings
- Temperature Range: -325° to 1,250° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: 316 Stainless Steel with 304 Stainless Steel Braid
The fittings are a short length of tubing that inserts into the end of another tube fitting. Use this air-cleaned hose to transfer liquid nitrogen across a wide temperature range.
| Stem OD | ID | OD | Bend Radius | Max. Pressure | Other Lengths, ft. | 1 ft. | 2 ft. | 3 ft. | 4 ft. | |
316 Stainless Steel Tube Stem × 316 Stainless Steel Tube Stem | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" × 1/4" | 1/4" | 9/16" | 5" | 4,600 psi @ 72° F | 1 to 25 | 00000000 | ||||
| 3/8" × 3/8" | 3/8" | 3/4" | 5 1/2" | 3,800 psi @ 72° F | 1 to 25 | 00000000 | ||||
| 1/2" × 1/2" | 1/2" | 13/16" | 5 3/4" | 2,600 psi @ 72° F | 1 to 25 | 00000000 | ||||
Liquid Nitrogen Hose with Yor-Lok Tube Fittings
- Temperature Range: -325° to 1,250° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: 316 Stainless Steel with 304 Stainless Steel Braid
The fittings are also known as instrumentation fittings. They have two sleeves (double ferrules) that bite into metal tubing for a strong seal. Use this air-cleaned hose to transfer liquid nitrogen across a wide temperature range.
Liquid Nitrogen Hose with Yor-Lok Tube Fitting and Tube Stem Fitting
- Temperature Range: -325° to 1,250° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: 316 Stainless Steel with 304 Stainless Steel Braid
Also known as instrumentation fittings, the Yor-Lok fitting has two sleeves (double ferrules) that bite into metal tubing for a strong seal. The tube stem fitting is a short length of tubing that inserts into the end of another tube fitting. Use this air-cleaned hose to transfer liquid nitrogen across a wide temperature range.