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Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
High-Polish Metal Quick-Clamp Sanitary Tube Fittings
- Temperature Range: See Gaskets
The smooth finish inside these fittings makes it easy to remove product residue. Also known as aseptic and tri-clamp fittings, they connect with a gasket, a clamp, and another quick-clamp fitting for a fast and easy way to access your line. The pressure rating of the fitting will vary depending on the clamp you choose, and the temperature rating will vary based on the gasket material you choose.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).
- For Use With: Air, Water
- Tubing: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Expand-to-connect fittings are also known as nonrecess or roll-on ferrules. To connect, insert metal tubing into the fitting and use an expansion tool (sold separately) to press the tubing into the fitting wall.
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 1", 1 1/4", 1 1/2" | 2.122" | 500 psi @ 72° F | ASTM A269, ASTM A270 | 4322K152 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 500 psi @ 72° F | ASTM A269, ASTM A270 | 9155K11 | 000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | For Tube Specifications Met | Each | |
| 1", 1 1/4", 1 1/2" | 2.2" | 304 Stainless Steel | 1,500 psi @ 72° F | ASTM A269, ASTM A270 | 4322K711 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | Certificate | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 700 psi @ 72° F | Material Certificate with Traceable Lot Number | 4759K62 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | Certificate | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 720 psi @ 72° F | Material Certificate with Traceable Lot Number | 4052N19 | 000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | Specifications Met | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 316 Stainless Steel | 2,400 psi @ 72° F | ASME BPVC.VIII | 4052N32 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 720 psi @ 72° F | 4052N26 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 1", 1 1/4", 1 1/2" | 1.984" | 150 psi @ 72° F | ASTM A269, ASTM A270 | 4322K169 | 000000 |
Buna-N gaskets are oil resistant. EPDM gaskets resist water and steam and work well in humid environments. Silicone gaskets withstand high temperatures. Fluoroelastomer gaskets stand up to fuel, oil, and acid condensates. PTFE gaskets withstand harsh chemicals, with the exception of molten alkali metal and elemental fluorine.
| For Tube OD | ID | OD | Thick. | Temp. Range, °F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1" | 0.900" | 1.980" | 0.203" | -30° to 200° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 4509K13 | 00000 |
EPDM Rubber | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -20° to 300° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 1100N13 | 0000 |
Silicone Rubber | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -40° to 450° | Clear | 3-A Certified 18-03, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 177.2600 | 4520K43 | 0000 |
Fluoroelastomer Rubber | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 5044K53 | 0000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.980" | 0.18" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 43315K53 | 0000 |
For Tube OD | |||||||
|---|---|---|---|---|---|---|---|
| Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Includes | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 304 Stainless Steel Nut | 4629N21 | 0000000 |
For Tube OD | ||||||
|---|---|---|---|---|---|---|
| Gasket Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 4629N19 | 000000 |
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 4177N11 | 000000 |
Flange OD | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Extra-Support Connection | Standard Connection | Wall Thick. | Material | For Tube Specifications Met | Each | |
| 1" | 1.995" | 1.984" | 0.065" | 316 Stainless Steel | ASTM A269, ASTM A270 | 4177N15 | 000000 |
Extra-High-Polish Metal Quick-Clamp Sanitary Tube Fittings
- For Use With: Air, Beverage, Dairy, Deionized Water, Food, Pharmaceuticals, Water
- Temperature Range: See Gaskets
- Tubing:
Fittings with 700 psi @ 72° F max. pressure: Use with 316/316L stainless steel that meets ASTM A269 or ASTM A270
Fittings with all other max. pressures: Use with 316/316L stainless steel that meets ASTM A249, ASTM A269, or ASTM A270
Gaskets: Use with 304/304L and 316/316L stainless steel - Specifications Met: See table
- Certification: Material Certificate with Traceable Lot Number and Test Report
Polished to a 20 Ra finish, these fittings have an extra-smooth interior that prevents product buildup and inhibits bacteria growth. Use them in pharmaceutical and bioprocessing applications. Also known as tri-clamp fittings, they connect with a clamp, a gasket, and another quick-clamp fitting for a fast and easy way to access your line. Fittings are 316 stainless steel for excellent corrosion resistance.
Fittings with butt-weld end are also known as ferrules; they weld to tubing for a permanent connection.
The pressure rating of the fitting will depend on the clamp you choose.
The temperature rating of the fitting will vary depending on the gasket material you choose.
Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).
| For Tube OD | Flange OD | Wall Thick. | Length | Material | Max. Pressure | Specifications Met | Each | |
| 6" | 6.57" | 0.109" | 3/4" | 316/316L Stainless Steel | 150 psi @ 100° F | ASME BPE | 4759K743 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 6" | 6.697" | 150 psi @ 72° F | ASTM A269, ASTM A270 | 4322K157 | 000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | For Tube Specifications Met | Each | |
| 6" | 6.78" | 304 Stainless Steel | 300 psi @ 72° F | ASTM A269, ASTM A270 | 4322K716 | 000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 6" | 6.57" | 430 psi @ 72° F | 4052N14 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Each | |
| 6" | 6.57" | 430 psi @ 72° F | 4052N24 | 0000000 |
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | Specifications Met | Certificate | Each | |
| 6" | 6.57" | 316 Stainless Steel | 210 psi @ 72° F | ASME BPVC.VIII | Material Certificate with Traceable Lot Number | 4052N36 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | Certificate | Each | |
| 6" | 6.57" | 430 psi @ 72° F | Material Certificate with Traceable Lot Number | 4052N31 | 0000000 |
| For Tube OD | For Flange OD | Max. Pressure | For Tube Specifications Met | Each | |
| 6" | 6.57" | 150 psi @ 72° F | ASTM A269, ASTM A270 | 4322K198 | 0000000 |
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 butt-weld end weld to tubing for a permanent connection. Fittings with butt-weld end are also known as ferrules.
- 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 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K73 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | __ | 4518K74 | 00000 |
Lever | ||||||||
| 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 | ||||||||
| 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 | ||||||||
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K64 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | Not Rated | 4518K65 | 00000 |
Rings with Stainless Steel Screen | ||||||||
| 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 | ||||||||
| 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 | ||||||||
| 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 | |
4 3/16" Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K93 | 0000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10 -8 torr @ 72° F | __ | Flexible | 4518K94 | 000000 |
12" Lg. | |||||||||
| 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. | |||||||||
| 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. | |||||||||
| 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.
Butt-Weld Fittings for Stainless Steel Tubing
- For Use With: See table
- Temperature Range: See table
- Tubing:
304 Stainless Steel: Use with 304/304L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except DIN EN 10357 fittings with only ASTM A269 or ASTM A270
316 Stainless Steel: Use with 316/316L stainless steel that meets ASTM A213, ASTM A269, or ASTM A270, except ASME BPE and DIN EN 10357 fittings with only ASTM A269 or ASTM A270 - Specifications Met: See table
Weld these fittings to tubing for a permanent, flush connection that permits smooth flow through a line.
304/304L stainless steel fittings have very good corrosion resistance. 316/316L stainless steel fittings have excellent corrosion resistance.
| For Tube OD | Max. Pressure | Max. Vacuum | Temp. Range Min., °F | Temp. Range Max., °F | Lg. | Wall Thick. | For Use With | Specifications Met | Each | |
304/304L Stainless Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Polished | ||||||||||
| 1/2" | 200 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 3/4" | 0.065" | Dairy, Food | 3-A Certified 63-04 | 44655K945 | 00000 |
316/316L Stainless Steel | ||||||||||
Polished | ||||||||||
| 1/2" | 1,200 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 3/4" | 0.065" | Dairy, Food | 3-A Certified 63-04 | 5237K412 | 00000 |
Dull | ||||||||||
| 1/2" | 1,200 psi @ 72° F | 10 -6 torr @ 72° F | -65° | 250° | 3/4" | 0.065" | Air, Food, Water | __ | 5237K414 | 00000 |
Nuts for Compression Fittings for Copper Tubing
Use these nuts with compression sleeves and fittings to create a strong seal on copper tubing. They are brass for good corrosion resistance.
Long nuts support more of the tube’s surface area than short nuts for a strong grip in high-vibration applications.
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -65° to 250° F, except metric fittings are -40° to 250° F
- Tubing: Use with copper
- Specifications Met: UL listed, except for metric fittings
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Lg. | Each | |
Long Nuts | ||||||
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | 3/4" | 50915K103 | 00000 |
Quick-Clamp High-Vacuum Fittings for Aluminum Tubing
- For Use With: Air
- Specifications Met: ISO 2861
For use in high-vacuum systems, these fittings use a metal reinforced O-ring to create an airtight seal. To form a complete connection, pair two adapters with a clamp and a ring (all sold separately). Made of aluminum, these fittings are lightweight and resist corrosion. This and the airtight seal make them a good choice for vacuum coating, heat treating, or leak testing. Also known as KF, QF, and NW fittings.
- Temperature Range: 0° to 300° F
- Tubing: Use with 304/304L stainless steel, 316/316L stainless steel, or aluminum
Connect quick-clamp fittings in high-vacuum applications. Clamps tighten by hand. They are aluminum, which is lightweight with good corrosion resistance.
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 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10^-8 torr @ 72° F | __ | 4518K73 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10^-8 torr @ 72° F | __ | 4518K74 | 00000 |
Lever | ||||||||
| 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 | ||||||||
| 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: 0° to 350° F
- Tubing: Use with aluminum
- 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 | |
4 3/16" Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 1/2" | 2.16" | 40 | ISO-KF | 304 Stainless Steel | 10^-8 torr @ 72° F | __ | Flexible | 4518K93 | 0000000 |
| 2" | 2.95" | 50 | ISO-KF | 304 Stainless Steel | 10^-8 torr @ 72° F | __ | Flexible | 4518K94 | 000000 |
12" Lg. | |||||||||
| 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. | |||||||||
| 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. | |||||||||
| 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
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.
Crimp-On Ferrules for Welding Hose
Use ferrules to create a permanent connection between your welding hose and barbed hose fittings. You will need a hose crimper (sold separately) for installation. Ferrules are brass for good corrosion resistance.
| Hose End ID | Lg. | Each | |
Brass | |||
|---|---|---|---|
| 0.564" | 3/4" | 79205A664 | 00000 |