About Hose
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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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Selecting and Measuring Expansion Joints
For information about selecting pipe size, see Selecting and Measuring Pipe & Fittings.
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About Pressure Reductions for High-Temperature Braided Hose
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High-Temperature All-Metal Expansion Joints with Flanged Ends
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Temperature Range: -20° to 800° F
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
These all-metal expansion joints can handle higher temperatures than rubber expansion joints. They reduce stress, vibration, and noise in piping systems by providing a point of flexibility to absorb movement. Joints are made of 304 stainless steel for very good corrosion resistance. The flanged ends rotate for easy bolt hole alignment during installation. Flanges mate with a same-size flat-surface Class 150 flange with a gasket (sold separately).
Liners (sold separately) slide into the expansion joint to provide a smooth interior for unrestricted flow.
For technical drawings and 3-D models, click on a part number.
Expansion Joints | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Distance | Liners | ||||||||||||
| Flange OD | Pipe Size  | Lg. | No. of Bolt Holes | Compression | Expansion | Offset | Expansion Joint Type | Flange Material | Bolt Hole Size | Each | Each | ||
304 Stainless Steel | |||||||||||||
| 6" | 2 | 6" | 4 | 15/16" | 5/16" | 3/8" | Bellow | Steel | 3/4" | 0000000 | 0000000 | 0000000 | 0000000 |
| 7" | 2 1/2 | 6" | 4 | 15/16" | 5/16" | 5/16" | Bellow | Steel | 3/4" | 0000000 | 000000 | 0000000 | 000000 |
| 7 1/2" | 3 | 6" | 4 | 15/16" | 5/16" | 1/4" | Bellow | Steel | 3/4" | 0000000 | 000000 | 0000000 | 000000 |
| 9" | 4 | 6" | 8 | 15/16" | 5/16" | 3/16" | Bellow | Steel | 3/4" | 0000000 | 000000 | 0000000 | 000000 |
| 10" | 5 | 6" | 8 | 15/16" | 5/16" | 3/16" | Bellow | Steel | 7/8" | 0000000 | 000000 | 0000000 | 000000 |
| 11" | 6 | 6" | 8 | 15/16" | 5/16" | 1/8" | Bellow | Steel | 7/8" | 0000000 | 000000 | 0000000 | 000000 |
| 13 1/2" | 8 | 6" | 8 | 1" | 3/8" | 1/8" | Bellow | Steel | 7/8" | 0000000 | 000000 | 0000000 | 000000 |
| 16" | 10 | 8" | 12 | 1 1/4" | 3/8" | 1/8" | Bellow | Steel | 1" | 0000000 | 00000000 | 0000000 | 000000 |
| 19" | 12 | 8" | 12 | 1 1/4" | 3/8" | 1/8" | Bellow | Steel | 1" | 0000000 | 00000000 | 0000000 | 000000 |
Expansion Joints with Butt-Weld Ends
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Temperature Range: -20° to 800° F
- Maximum Pressure: 150 psi @ 72° F
- Maximum Vacuum: 29 in. of Hg @ 72° F
These joints weld to unthreaded pipe or another butt-weld fitting for a leak-resistant, permanent connection. They reduce stress, vibration, and noise in metal piping systems by providing a point of flexibility to absorb movement.
For technical drawings and 3-D models, click on a part number.
Distance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Pipe OD | Pipe Size | Lg. | Compression | Expansion | Offset | Expansion Joint Type | Butt Weld End Material | Each | |
321 Stainless Steel | |||||||||
| 3 1/2" | 3 | 5" | 3/8" | 3/16" | 1/16" | Bellow | Steel | 0000000 | 0000000 |
| 4 1/2" | 4 | 6" | 5/8" | 1/4" | 1/16" | Bellow | Steel | 0000000 | 000000 |
| 5 9/16" | 5 | 7 1/2" | 5/8" | 1/4" | 1/16" | Bellow | Steel | 0000000 | 000000 |
| 6 5/8" | 6 | 9" | 13/16" | 3/8" | 1/16" | Bellow | Steel | 0000000 | 000000 |
| 8 5/8" | 8 | 8 1/2" | 13/16" | 3/8" | 1/16" | Bellow | Steel | 0000000 | 000000 |
| 10 3/4" | 10 | 9 1/2" | 13/16" | 7/16" | 1/16" | Bellow | Steel | 0000000 | 00000000 |
High-Vacuum Hose with Claw-Clamp Fittings
More flexible than rigid stainless steel tubing, this hose allows you to link high-vacuum components that are misaligned. Also known as bellows. The ribbed design absorbs vibration so it doesn't transfer from one component to the next. Equipped with a claw-clamp (ISO-K) fitting on each end, this hose connects to large components with fittings starting at trade number 63. Each fitting on the hose requires four claw clamps and a ring (both sold separately) to connect. Not for use in pressure applications.
Double-claw clamps attach to the grooves on the fittings.
Single-claw clamps have a clamp on one end and an exposed bolt on the other. Thread the bolt-end directly into the body of pumps, valves, or other high-vacuum components.
- Temperature Range: Not Rated
- Material:
6" Lengths: 321 Stainless Steel
Other Lengths: 304 Stainless Steel - Fitting Material: 304 Stainless Steel
| For Tube OD | Flange OD | High-Vacuum Flange Size | ID | OD | Wall Thickness | Bend Radius | High Vacuum Connection Type | Max. Vacuum | Each | |
6" Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 1/2" | 3.74" | 63 | 2 1/2" | 3 5/16" | 0.008" | 2 3/4" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 0000000 |
| 3" | 4.33" | 80 | 3" | 3 15/16" | 0.008" | 3" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 4" | 5.12" | 100 | 4" | 4 15/16" | 0.008" | 3 1/2" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 6" | 7.09" | 160 | 6" | 6 7/8" | 0.01" | 5 1/4" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
12" Lg. | ||||||||||
| 2 1/2" | 3.74" | 63 | 2 1/2" | 3 3/16" | 0.008" | 3" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 3" | 4.33" | 80 | 3" | 3 7/8" | 0.008" | 6" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 4" | 5.12" | 100 | 4" | 4 13/16" | 0.008" | 8" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 6" | 7.09" | 160 | 6" | 6 15/16" | 0.01" | 15" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
24" Lg. | ||||||||||
| 2 1/2" | 3.74" | 63 | 2 1/2" | 3 3/16" | 0.008" | 3" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 3" | 4.33" | 80 | 3" | 3 7/8" | 0.008" | 6" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 4" | 5.12" | 100 | 4" | 4 13/16" | 0.008" | 8" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 6" | 7.09" | 160 | 6" | 6 15/16" | 0.01" | 15" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 00000000 |
36" Lg. | ||||||||||
| 2 1/2" | 3.74" | 63 | 2 1/2" | 3 3/16" | 0.008" | 3" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 3" | 4.33" | 80 | 3" | 3 7/8" | 0.008" | 6" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 4" | 5.12" | 100 | 4" | 4 13/16" | 0.008" | 8" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 6" | 7.09" | 160 | 6" | 6 15/16" | 0.01" | 15" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 00000000 |
39" Lg. | ||||||||||
| 2 1/2" | 3.74" | 63 | 2 1/2" | 3 3/16" | 0.008" | 3" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 3" | 4.33" | 80 | 3" | 3 7/8" | 0.008" | 6" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 4" | 5.12" | 100 | 4" | 4 13/16" | 0.008" | 8" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 6" | 7.09" | 160 | 6" | 6 15/16" | 0.01" | 15" | ISO-K | 1 × 10 -9 torr @ 72° F | 0000000 | 00000000 |
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Each | |
Double Claw | |||||||
|---|---|---|---|---|---|---|---|
| 2 1/2", 3", 4" | 3.74", 4.33", 5.12" | 63, 80, 100 | ISO-K | Aluminum | 1 × 10 -9 torr @ 72° F | 0000000 | 00000 |
| 6" | 7.09" | 160 | ISO-K | Aluminum | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
Single Claw | |||||||
| 2 1/2", 3", 4" | 3.74", 4.33", 5.12" | 63, 80, 100 | ISO-K | Aluminum | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
| 6" | 7.09" | 160 | ISO-K | Aluminum | 1 × 10 -9 torr @ 72° F | 0000000 | 0000 |
Material | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Max. Temp., °F | Each | |
| 2 1/2" | 3.74" | 63 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 000000 |
| 3" | 4.33" | 80 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 000000 | 00000 |
| 4" | 5.12" | 100 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 00000 |
| 6" | 7.09" | 160 | ISO-K | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 400° | 0000000 | 00000 |
Abrasion-Resistant High-Vacuum Hose with Quick-Clamp Fittings
A braided exterior protects this hose from abrasion and over-bending. Also known as bellows, the ribbed interior makes it flexible enough to connect high-vacuum components that aren't directly aligned. It also reduces vibration between components such as pumps, valves, and chambers. Connect to your components with the quick-clamp (KF) fittings; a clamp and a ring (both sold separately) are required for each fitting. Not for use in pressure applications.
- Temperature Range: Not Rated
- Material: 304 Stainless Steel
- Fitting Material: 304 Stainless Steel
| For Tube OD | Flange OD | High-Vacuum Flange Size | ID | OD | Wall Thickness | Bend Radius | High Vacuum Connection Type | Max. Vacuum | Each | |
6" Lg. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1.18" | 16 | 3/4" | 1 3/16" | 0.006" | __ | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 0000000 |
| 1" | 1.57" | 25 | 1" | 1 7/16" | 0.006" | __ | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.006" | 10" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 5/8" | 0.006" | 11 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
12" Lg. | ||||||||||
| 3/4" | 1.18" | 16 | 3/4" | 1 3/16" | 0.008" | 6 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | 1" | 1 7/16" | 0.008" | 7 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 5/8" | 0.008" | 11 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
24" Lg. | ||||||||||
| 3/4" | 1.18" | 16 | 3/4" | 1 3/16" | 0.008" | 6 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | 1" | 1 7/16" | 0.008" | 7 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 5/8" | 0.008" | 11 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
36" Lg. | ||||||||||
| 3/4" | 1.18" | 16 | 3/4" | 1 3/16" | 0.008" | 6 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | 1" | 1 7/16" | 0.008" | 7 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 5/8" | 0.008" | 11 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
39" Lg. | ||||||||||
| 3/4" | 1.18" | 16 | 3/4" | 1 3/16" | 0.008" | 6 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | 1" | 1 7/16" | 0.008" | 7 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 5/8" | 0.008" | 11 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Each | |
With Wing Nut | |||||||
|---|---|---|---|---|---|---|---|
| 1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 00000000 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
Material | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Each | |
| 3/4" | 1.18" | 16 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 00000000 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -7 torr @ 72° F | 0000000 | 00000 |
Extreme-Temperature Air and Steam Hose with Male Threaded Fittings
- Maximum Vacuum: 29" of Hg @ 72° F
- Temperature Range: -325° to 1,200° F
- Material: 316 Stainless Steel or 321 Stainless Steel
Braided stainless steel construction gives this hose moderate flexibility and makes it tough enough to handle extreme temperatures, as well as vibration.
Double-braided hose withstands higher pressures than braided hose.
| Pipe Size | ID | OD | Bend Radius | Max. Pressure | Other Lengths | 12" | 18" | 24" | 36" | 48" | |
316 Stainless Steel Hose with 316 Stainless Steel NPT Male Fittings | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4 × 3/4 | 3/4" | 1 3/8" | 10" | 3,600 psi @ 72° F | 9" to 120" | 0000000 | |||||
| 1 × 1 | 1" | 1 3/4" | 11" | 3,000 psi @ 72° F | 9" to 120" | 0000000 | |||||
| 1 1/4 × 1 1/4 | 1 1/4" | 2" | 12 1/2" | 2,600 psi @ 72° F | 9" to 120" | 0000000 | |||||
| 1 1/2 × 1 1/2 | 1 1/2" | 2 3/8" | 13" | 2,200 psi @ 72° F | 10" to 120" | 0000000 | |||||
| 2 × 2 | 2" | 2 7/8" | 14" | 1,675 psi @ 72° F | 12" to 120" | 0000000 | |||||
Accessories and Replacement Parts for Vacuum Lifters
Use sensors, vacuum lifter mounts, and robot adapter plates to add functionality or replace worn cups, pads, and other parts to extend the life of your vacuum lifters.
For technical drawings and 3-D models, click on a part number.
