How to Identify and Measure Fittings
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Push-to-Connect Fittings for Plastic Tubing—High-Purity
- For Use With: Air, Nitrogen, Water
- Temperature Range: 32° to 100° F
- Tubing: Use with polypropylene plastic
Also known as instant fittings, these connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings are produced in a clean room and are double bagged to prevent dirt and moisture from contaminating the inside. They are polypropylene, which has excellent impact and abrasion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
BSPT Threads | |||||||
---|---|---|---|---|---|---|---|
1/4" | 1/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 000000 |
1/4" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 3/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
1/2" | 3/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
1/2" | 1/2 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
4mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
4mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
6mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
6mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
8mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
8mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
10mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
10mm | 3/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
12mm | 3/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
Tube Stem OD, mm | For Tube OD, mm | Material | Color | Release Ring Color | Max. Pressure | Each | |
6 | 4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 00000 |
8 | 4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
8 | 6 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
10 | 8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
12 | 8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
12 | 10 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mount. Fasteners Included | Each | |
1/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 000000 |
1/4" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 00000 |
3/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 00000 |
1/2" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 00000 |
4mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | __ | __ | 0000000 | 0000 |
6mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | __ | __ | 0000000 | 0000 |
8mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | __ | __ | 0000000 | 00000 |
10mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | __ | __ | 00000000 | 00000 |
12mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | __ | __ | 00000000 | 00000 |
For Tube OD | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
BSPT Threads | |||||||
---|---|---|---|---|---|---|---|
1/4" | 1/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 000000 |
1/4" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 3/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
1/2" | 3/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
1/2" | 1/2 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
4mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
4mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
6mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
6mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
8mm | 1/8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
8mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 0000000 | 0000 |
10mm | 1/4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | 00000000 | 0000 |
For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mount. Fasteners Included | Each | |
1/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 000000 |
1/4" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 00000 |
3/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 0000000 | 00000 |
4mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 0000 |
6mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 0000 |
8mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 0000 |
10mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
Inline tees are also known as branch tees.
For Tube OD | Pipe Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
BSPT Threads | |||||||
---|---|---|---|---|---|---|---|
1/4" | 1/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 000000 |
1/4" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 1/4 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
3/8" | 3/8 | Polypropylene Plastic | White | White | 100 psi @ 72° F | 0000000 | 00000 |
For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mount. Fasteners Included | Each | |
1/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 00000000 | 000000 |
1/4" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 00000000 | 00000 |
3/8" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 00000000 | 00000 |
1/2" | Polypropylene Plastic | White | White | 100 psi @ 72° F | Screw On | No | 00000000 | 00000 |
4mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 00000 |
6mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 00000 |
8mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 0000000 | 00000 |
10mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
12mm | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
For Tube OD, mm | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mount. Fasteners Included | Each | |
4 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 000000 |
6 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
8 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
10 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
12 | Polypropylene Plastic | White | Green | 140 psi @ 72° F | Screw On | No | 00000000 | 00000 |
Vibration-Resistant Compression Fittings for Stainless Steel Tubing
- For Use With: Acetylene, Air, Butane, Compressed Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Helium, Hydraulic Fluid (Petroleum Base), Kerosene, Mineral Oil, Natural Gas, Nitrogen, Propane, Soap Solutions
- Temperature Range: -10° to 400° F
- Tubing: Use with seamless 316Ti or 321 stainless steel
- Specifications Met: DIN 3861
Instead of a metal sleeve (ferrule), these fittings have a rubber sleeve that cushions tubing and absorbs vibration to maintain a tight seal, even when connected to large pumps. However, rubber sleeves can’t withstand temperatures as high as metal ones. To create the strong seal, tighten the included nut. These fittings are made of 316 stainless steel, so they have excellent corrosion resistance. They’re also known as flareless fittings. All meet DIN 3861, which is an international standard for compression tube fitting specifications.
BSPP and metric male threads have a gasket to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Male Threads with
Gasket and Washer
For Tube | |||||||||
---|---|---|---|---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Pipe Size | Thread Size | Thread Pitch, mm | Material | Gasket Material | Maximum Pressure | Each | |
NPT Threads | |||||||||
6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
8 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 00000 |
10 | 1 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
10 | 1 | 3/8 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
12 | 1.5 | 1/4 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
12 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
15 | 1.5 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
18 | 2 | 1/2 | __ | __ | 316 Stainless Steel | __ | 4,500 psi @ 72° F | 00000000 | 000000 |
BSPP Threads | |||||||||
6 | 1 | 1/8 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
6 | 1 | 1/4 | __ | __ | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
Metric Threads | |||||||||
8 | 1 | __ | M12 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
10 | 1 | __ | M14 | 1.5 | 316 Stainless Steel | Fluoroelastomer Rubber | 4,500 psi @ 72° F | 00000000 | 00000 |
For Tube | |||||
---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Each | |
6 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 000000 |
8 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
10 | 1 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
12 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
15 | 1.5 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
18 | 2 | 316 Stainless Steel | 4,500 psi @ 72° F | 00000000 | 00000 |
Ultra-High-Polish Gasket Fittings for Stainless Steel Tubing
- For Use With: Argon, Helium, Nitrogen
- Temperature Range: -420° to 1000° F
- Tubing: Use with 316/316L stainless steel
- Compatible With: Swagelok® VCR
The 15 Ra finish on the interior of these fittings creates an ultra-smooth surface. Also known as ultra-high-purity fittings, they are packed in a Class 100 clean room to prevent contamination. They are commonly used in semiconductor applications. Fittings use a metal gasket (sold separately), which generates fewer particles than a rubber gasket and creates a strong seal in high-pressure and high-vacuum applications. Fittings are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Wall Thick. | Lg. | Material | Max. Pressure | Max. Vacuum | Each | |
1/2" | 0.049" | 1 1/8" | 316L Stainless Steel | 3,500 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 000000 |
For Tube OD | Material | Max. Pressure | Max. Vacuum | Each | |
1/4" | 316L Stainless Steel | 5,100 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 000000 |
Use a female nut to connect a threaded adapter or a Yor-Lok adapter with a butt-weld adapter.
Ultra-High-Polish Gasket Adapters for Stainless Steel Tubing
- For Use With: Argon, Helium, Nitrogen
- Temperature Range: -420° to 1000° F
- Tubing: Use with 316/316L stainless steel
- Compatible With: Swagelok® VCR
The 15 Ra finish on the interior of these adapters provides an ultra-smooth surface. Also known as ultra-high-purity fittings, they are packed in a Class 100 clean room to prevent contamination. They are commonly used in semiconductor applications. Adapters use a metal gasket (sold separately) which generates fewer particles than a rubber gasket and creates a strong seal in high-pressure and high-vacuum applications. Adapters are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Vibration-Resistant Ultra-High-Polish Gasket Fittings for Stainless Steel Tubing
- For Use With: Argon, Helium, Nitrogen
- Temperature Range: -420° to 1000° F
- Tubing: Use with 316/316L stainless steel
Polished to a 7 Ra finish on the inside, these fittings have an ultra-smooth interior surface. Also known as ultra-high-purity fittings, they are packed in a Class 100 clean room to prevent contamination. They are commonly used in semiconductor applications. Fittings use a metal gasket, which generates fewer particles than a rubber gasket and creates a strong seal in high-pressure and high-vacuum applications. Two anti-torque rings further reduce particle generation by preventing the metal gasket from twisting and loosening. Fittings are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Wall Thick. | Lg. | Material | Max. Pressure | Max. Vacuum | Compatible With | Each | |
1/4" | 0.035" | 1 1/8" | 316/316L Stainless Steel | 4,000 psi @ 72° F | 10 -11 torr @ 72° F | Swagelok® VCR | 0000000 | 000000 |
1/4" | 0.035" | 1 3/4" | 316/316L Stainless Steel | 4,000 psi @ 72° F | 10 -11 torr @ 72° F | Swagelok® VCR | 0000000 | 00000 |
1/2" | 0.049" | 1 1/8" | 316/316L Stainless Steel | 2,800 psi @ 72° F | 10 -11 torr @ 72° F | Swagelok® VCR | 0000000 | 00000 |
1/2" | 0.049" | 1 13/16" | 316/316L Stainless Steel | 2,800 psi @ 72° F | 10 -11 torr @ 72° F | Swagelok® VCR | 0000000 | 00000 |
For Tube OD | Nut Material | Max. Pressure | Max. Vacuum | Each | |
Male | |||||
---|---|---|---|---|---|
1/4" | 316/316L Stainless Steel | 4,000 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 00000 |
1/2" | 316/316L Stainless Steel | 2,800 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 00000 |
Female | |||||
1/4" | 316/316L Stainless Steel | 4,000 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 0000 |
1/2" | 316/316L Stainless Steel | 2,800 psi @ 72° F | 10 -11 torr @ 72° F | 0000000 | 00000 |
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 technical drawings and 3-D models, click on a part number.
For Tube | |||||||||
---|---|---|---|---|---|---|---|---|---|
Flange OD | High-Vacuum Flange Size | OD | Wall Thick. | Lg. | Max. Vacuum | Material | Specifications Met | Each | |
For Use With Acetone, Air, Ammonium Hydroxide, Helium, Methane, Nitrogen, Oil, Water | |||||||||
1.18" | 16 | 1/4" | 0.028"-0.095" | 8" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 0000000 |
1.57" | 25 | 1/4" | 0.028"-0.095" | 8" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
2.16" | 40 | 1/4" | 0.028"-0.095" | 8" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
2.95" | 50 | 1/4" | 0.028"-0.095" | 8" | 1 × 10 -8 torr @ 72° F | 304 Stainless Steel | ISO 2861 | 0000000 | 000000 |
Bolt Hole | For Tube | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Flange OD | High-Vacuum Flange Size | Bolt Circle Dia. | Dia. | No. of | OD | Wall Thick. | Lg. | Max. Vacuum | Material | Each | |
For Use With Acetone, Air, Ammonium Hydroxide, Helium, Methane, Nitrogen, Oil, Water | |||||||||||
1 21/64" | 16 | 1 1/16" | 11/64" | 6 | 1/4" | 0.028"-0.095" | 8" | 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" | 8" | 1 × 10 -13 torr @ 72° F | 304 Stainless Steel | 0000000 | 000000 |
Material | ||||||
---|---|---|---|---|---|---|
For Flange OD | For High-Vacuum Flange Size | 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 | 00000 |
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 |