Type Type |
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 | Connector |
Shape Shape |
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 | Straight |
Material Material |
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Connection Style Connection Style |
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| Flanged |
 |
| Yor-Lok |
 |
| Quick Clamp |
For Use With For Use With | Show |
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For Use With For Use With | Hide |
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Maximum Pressure Maximum Pressure |
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System of Measurement System of Measurement |
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For Tube Material For Tube Material |
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Specifications Met Specifications Met |
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Mount Type Mount Type |
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 | Through Wall |
Compatible With Compatible With |
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Fitting Material Fitting Material |
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For Tube Wall Thickness For Tube Wall Thickness |
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Length Length |
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Maximum Vacuum Maximum Vacuum |
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Nut Material Nut Material |
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Sleeve Material Sleeve Material |
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Sterilize With Sterilize With |
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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 Backflow-Prevention Valves
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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
Also known as feedthroughs, these fittings transfer liquids, cryogenic liquids, or gasses into high-vacuum chambers for coating, cooling, and leak-testing applications without losing vacuum pressure. Consisting of high-vacuum fittings, metal tubing, and Yor-lok tube fittings, these complete assemblies come ready to install. The quick-clamp (KF) or flanged (CF) high-vacuum fittings form a tight seal on chamber walls. On each end, the Yor-lok fittings include a nut and two sleeves that grip your system’s stainless steel tubing for a leak- and gas-tight connection. The entire assembly is stainless steel so it resists rusting. Not for use in pressure applications.
Quick-clamp fittings meet ISO (International Standards Organization) 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 |
| For Flange OD | Trade Number | Material | Max. Vacuum | Each | |
With Wing Nut | |||||
|---|---|---|---|---|---|
| 1.18" | 10 | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 00000 |
| 1.18" | 10, 16 | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 0000 |
| 1.18" | 16 | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 0000 |
| 1.57" | 25 | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 2.16" | 40 | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 2.95" | 50 | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
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 |
Pipeline Fluid Blockers
Also known as paddle blinds, these fit between two flanges to temporarily block the flow while you work downstream.
304 stainless steel blinds are more corrosion resistant than steel blinds.