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High-Polish Stainless Steel Tubing for Food, Beverage, and Dairy

The interior and exterior are polished to a high-luster finish to resist particle buildup and allow for easy cleaning. Tubing is welded with a smoothed weld bead on the inside.
304/304L stainless steel tubing has very good corrosion resistance. Note: Ra measures the smoothness of the tubing; the lower the Ra value, the smoother and more polished the surface.
- Temperature Range: -420° to 1500° F
- Bending Method: Tube Bender
- Compatible Tube Fittings: Butt Weld and High-Polish Quick Clamp
Smoothness, Ra | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | ID | Max. Pressure | Temper Rating | Interior | Exterior | Specifications Met | 1 ft. | 3 ft. | 6 ft. | |
304L Stainless Steel | |||||||||||
| 1/2" | 0.065" | 0.37" | 3,400 psi @ 72° F | Soft | 30 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K72 | |||
| 3/4" | 0.065" | 0.62" | 2,300 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K73 | |||
| 1" | 0.065" | 0.87" | 1,700 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K52 | |||
| 1 1/2" | 0.065" | 1.37" | 1,100 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K53 | |||
| 2" | 0.065" | 1.87" | 860 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K54 | |||
| 2 1/2" | 0.065" | 2.37" | 690 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K55 | |||
| 3" | 0.065" | 2.87" | 570 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K56 | |||
| 4" | 0.083" | 3.83" | 550 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K57 | |||
| 6" | 0.109" | 5.78" | 480 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K84 | |||
| 8" | 0.109" | 7.78" | 360 psi @ 72° F | Soft | 20 | 30 | 3-A Certified 33-03, ASTM A269, ASTM A270 | 4466K86 | |||
Quick-Clamp High-Vacuum Fittings for Stainless Steel Tubing

- For Use With:
Fittings with Gasket End: Air, Argon, Helium, Nitrogen
All Other Fittings: Air - Specifications Met: ISO 2861
Instead of a gasket, these fittings have a metal-reinforced O-ring that is designed for high-vacuum applications, such as vacuum coating and heat treating, leak testing, and analyzing gases. Also known as KF, QF, and NW fittings, they are the most common type of connection in high-vacuum systems. Connect with a clamp and another quick-clamp fitting for fast, easy access to your line. To use fittings in pressure applications, use a pressure-rated ring (sold separately). Made of 304 stainless steel, these fittings have very good corrosion resistance.
Note: To complete a connection, you’ll need two quick-clamp fittings, a ring, and a clamp (all sold separately).

- Temperature Range: 0° to 300° F
- Tubing: Use with 304/304L or 316/316L stainless steel
Fittings with compression end bite into hard metal and plastic tubing in low-to-medium-pressure applications. Also known as flareless fittings.
| For Tube OD (Flanged) | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | For Tube OD (Compression) | For Tube Wall Thick. | Material | Max. Vacuum | Each | |
| 3/4" | 1.18" | 16 | ISO-KF | 1/4" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K723 | 0000000 |
| 3/4" | 1.18" | 16 | ISO-KF | 1/2" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K724 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 1/2" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K725 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 1" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K726 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 1/2" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K727 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 1" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K728 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 1 1/8" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K729 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 1" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K731 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 1 1/8" | 0.065" | 304 Stainless Steel | 10 -8 torr @ 72° F | 4518K732 | 000000 |




- Temperature Range: 0° to 300° F
- Tubing: Use with 304/304L stainless steel, 316/316L stainless steel, or aluminum
Clamps tighten by hand.
Lever clamps are also known as toggle clamps.
Clamps with lanyard let you secure the clamp to equipment.
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Lanyard Lg. | Each | |
Wing Nut | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K711 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K72 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K73 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K74 | 00000 |
Lever | ||||||||
| 1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K75 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K76 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K77 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K78 | 00000 |
Lever with Lanyard | ||||||||
| 3/4" | 1.18" | 16 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | 5 3/4" | 4518K965 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | 5 3/4" | 4518K966 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | 5 3/4" | 4518K967 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | 5 3/4" | 4518K968 | 00000 |




- Temperature Range:
Fittings with Viton® Fluoroelastomer Rubber O-Ring: 0° to 300° F
Fittings with Silicone Rubber O-Ring: -50° to 390°F - Tubing: Use with 304/304L stainless steel, 316/316L stainless steel, or aluminum
Use these rings with quick-clamp high-vacuum fittings. They consist of a stainless steel inner ring covered by an O-ring.
Silicone rings withstand higher temperatures than fluoroelastomer ones.
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Inner Ring Material | Max. Vacuum | Max. Pressure | Each | |
Viton® Fluoroelastomer Rubber O-Ring | ||||||||
|---|---|---|---|---|---|---|---|---|
Rings | ||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K621 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K63 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K64 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K65 | 00000 |
Rings with Stainless Steel Screen | ||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K815 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K816 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K817 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K818 | 00000 |
Rings with Aluminum Outer Ring | ||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K911 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 100 psi @ 72° F | 4518K67 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 75 psi @ 72° F | 4518K68 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 50 psi @ 72° F | 4518K69 | 00000 |
Silicone Rubber O-Ring | ||||||||
Rings | ||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K767 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K768 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K769 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K771 | 00000 |

- Temperature Range: 0° to 300° F
- Tubing: Use with 304/304L stainless steel, 316/316L stainless steel, or aluminum
Hose absorbs moderate vibration
| For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Bend Radius | Flexibility | Each | |
3 3/16" Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K91 | 000000 |
4 3/16" Lg. | |||||||||
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K92 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K93 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K94 | 000000 |
12" Lg. | |||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 5/8" | Flexible | 4518K951 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 3/8" | Flexible | 4518K961 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 2 1/2" | Flexible | 4518K971 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 3 1/4" | Flexible | 4518K981 | 000000 |
24" Lg. | |||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 5/8" | Flexible | 4518K952 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 3/8" | Flexible | 4518K962 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 2 1/2" | Flexible | 4518K972 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 3 1/4" | Flexible | 4518K982 | 000000 |
39" Lg. | |||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 5/8" | Flexible | 4518K953 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 1 3/8" | Flexible | 4518K963 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 2 1/2" | Flexible | 4518K973 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | 3 1/4" | Flexible | 4518K983 | 000000 |

- Temperature Range: 0° to 190° F
- Tubing: Use with 304/304L or 316/316L stainless steel
Valves are also known as vacuum isolation valves. They connect to a vacuum system so you can install gauges, release gases, and remove air. They operate manually and have a compact body that fits easily into tight spaces.
| Actuation | For Tube OD | Flange OD | High-Vacuum Flange Size | High Vacuum Connection Type | Max. Vacuum | Body Material | Overall Ht. | Overall Lg. | Each | |
| Manual | 3/4" | 1 3/16" | 16 | ISO-KF | 10 -8 torr @ 72° F | 304 Stainless Steel | 4 1/8" | 2 1/4" | 4518K892 | 0000000 |
| Manual | 1" | 1 9/16" | 25 | ISO-KF | 10 -8 torr @ 72° F | 304 Stainless Steel | 5 5/8" | 3" | 4518K893 | 000000 |
| Manual | 1 1/2" | 2 1/8" | 40 | ISO-KF | 10 -8 torr @ 72° F | 304 Stainless Steel | 6 3/8" | 3 7/8" | 4518K894 | 000000 |
| Manual | 2" | 2 15/16" | 50 | ISO-KF | 10 -8 torr @ 72° F | 304 Stainless Steel | 8" | 4 1/2" | 4518K895 | 000000 |

























