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Yor-Lok Fittings for Stainless Steel Tubing
A nut with two sleeves (ferrules) gives these fittings extra gripping power. The sleeves bite into tubing as you tighten the nut, creating a strong seal. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.
316 stainless steel fittings have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With:
Inch:
NPT and BSPT Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
BSPP Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Mineral Oil, Water
UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil
Metric:
NPT, BSPT, and UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water - Tubing:
Inch:
NPT and UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT and BSPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size  | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | |||||||
| 25mm | 2mm to 3mm | 1 | 316 Stainless Steel | 2,900 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing:
Inch:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | |||||||
| 25mm | 2 to 3 mm | 3/4 | 316 Stainless Steel | 2,900 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
| 25mm | 2 to 3 mm | 316 Stainless Steel | 2,900 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
Front and Back Sleeves for Yor-Lok Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use these sleeves with Yor-Lok nuts and fittings to create an extra-strong seal on stainless steel tubing. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Each | |
| 25mm | 2 to 3 mm | 316 Stainless Steel | 2,900 psi @ 72° F | 00000000 | 000000 |
Sleeves for High-Pressure Compression Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless 304 or 316/316L/316Ti stainless steel that meets DIN EN 10216-5 or DIN EN 10305-1
- Specifications Met: DIN 2353, ISO 8434
When used with high-pressure compression fittings and nuts, these sleeves bite into stainless steel tubing to form a strong seal. Made from 316 stainless steel, they won’t corrode from water, chemicals, or salt spray. These nuts meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting dimensions and materials.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||
|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Sleeve Material | Maximum Pressure | Each | |
| 25 | 2.5-3 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
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.
316 stainless steel fittings have excellent corrosion resistance.
Fittings that meet DIN standards adhere to international requirements for sanitary quick-clamp fittings.
Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Beverage, Dairy, Food, Water
- Tubing: Use with welded 304/304L or 316/316L stainless steel
- Specifications Met: DIN 32676
For Tube OD | Flange OD | 316 Stainless Steel | ||||
|---|---|---|---|---|---|---|
| Quick Clamp | Metric Quick Clamp, mm | Quick Clamp | Metric Quick Clamp, mm | Wall Thick. | Each | |
| 1" | 25 | 1.984" | 50.5 | 0.136" | 0000000 | 0000000 |
Recessed Nut, Hole for
Lockout, and 2-Pin Hinge
Clamps with wing nut tighten by hand. Clamps with bolt tighten with a wrench. They handle higher pressures than wing-nut clamps for a stronger, more secure hold.
| For Tube OD | For Flange OD | Bolt Material | Max. Pressure | For Tube Specifications Met | Specifications Met | Each | |
304 Stainless Steel with Wing Nut | |||||||
|---|---|---|---|---|---|---|---|
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 000000 |
304 Stainless Steel with Wing Nut, Spring Loaded | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 0000000 | 00000 |
304 Stainless Steel with Bolt | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | 304 Stainless Steel | 1,500 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
316 Stainless Steel with Wing Nut and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 700 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
316 Stainless Steel with Safety Wing Nut and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
316 Stainless Steel with Double Bolt | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | 316 Stainless Steel | 2,400 psi @ 72 ° F | __ | ASME BPVC.VIII | 0000000 | 000000 |
316 Stainless Steel with Recessed Nut, Hole for Lockout, and 2-Pin Hinge | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 720 psi @ 72 ° F | __ | __ | 0000000 | 00000 |
White Nylon Plastic with Wing Nut | |||||||
| 1", 1 1/4", 1 1/2" | 1.984" | __ | 150 psi @ 72 ° F | ASTM A269, ASTM A270 | __ | 00000000 | 00000 |
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 | 0000000 | 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 | 0000000 | 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 | 0000000 | 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 | 0000000 | 000000 |
Clamps for High-Polish Metal Quick-Clamp Sanitary Tube Fittings
- Temperature Range: See Gaskets or O-Rings
- Tubing:
Inch 304 Stainless Steel and Nylon Plastic: Use with welded 304/304L and 316/316L stainless steel that meets ASTM A269 or ASTM A270
Metric 304 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Inch 316 Stainless Steel: Use with welded 304/304 L and 316/316L stainless steel
Metric 316 Stainless Steel: Use with welded 316/316L Stainless Steel
Connect quick-clamp sanitary tube fittings—also known as aseptic fittings—for a fast and easy way to access your line. Clamps with wing nut tighten by hand. Clamps with safety wing nut won’t release from minor loosening or jostling. They have a leak-before-burst design, which means they’ll leak to relieve pressure if the seal fails instead of bursting and causing a safety hazard.
Clamps with bolt tighten with a wrench. They handle higher pressures than wing-nut clamps for a stronger, more secure hold. Double-bolt clamps meet ASME design standards for pressure vessels.
Clamps with recessed nut require a hex socket adapter to loosen the nut, preventing the clamp from tampering and accidental removal. They have a hole for lockout (padlock not included) to block unauthorized access, helping you meet Hazard Analysis and Critical Control Point (HACCP) programs and Good Management Practices (GMP). Both of these security measures reduce the risk of product contamination. These clamps have a leak-before-burst design, so rather than burst dangerously if the seal fails, they’ll safely relieve pressure by dripping instead.
304 stainless steel clamps have very good corrosion resistance.
316 stainless steel clamps are more corrosion resistant than 304 stainless steel clamps. Clamps with two-pin hinge apply more even pressure on gaskets than other clamps, causing less wear and tear on gaskets.
Nylon clamps are lightweight compared to stainless steel clamps.
Clamps that meet DIN 11864 or DIN 32676 adhere to international standards for sanitary quick-clamp fittings.
For technical drawings and 3-D models, click on a part number.
Recessed Nut, Hole for
Lockout, and 2-Pin Hinge
| For Tube OD | For Flange OD | Max. Pressure | Specifications Met | Each | |
304 Stainless Steel with Wing Nut | |||||
|---|---|---|---|---|---|
| 1", 1 1/4", 1 1/2" | 1.984" | 500 psi @ 72° F | __ | 00000000 | 000000 |
304 Stainless Steel with Wing Nut, Spring Loaded | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 500 psi @ 72° F | __ | 0000000 | 00000 |
304 Stainless Steel with Bolt | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 1,500 psi @ 72° F | __ | 00000000 | 00000 |
316 Stainless Steel with Wing Nut | |||||
| 20mm, 25mm | 50.5mm | 725 psi @ 300° F | DIN 11864 | 0000000 | 00000 |
316 Stainless Steel with Wing Nut and 2-Pin Hinge | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 700 psi @ 72° F | __ | 0000000 | 00000 |
316 Stainless Steel with Safety Wing Nut and 2-Pin Hinge | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 720 psi @ 72° F | __ | 0000000 | 00000 |
316 Stainless Steel with Double Bolt | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 2,400 psi @ 72° F | ASME BPVC.VIII | 0000000 | 000000 |
316 Stainless Steel with Recessed Nut, Hole for Lockout, and 2-Pin Hinge | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 720 psi @ 72° F | __ | 0000000 | 00000 |
White Nylon Plastic with Wing Nut | |||||
| 1", 1 1/4", 1 1/2" | 1.984" | 150 psi @ 72° F | __ | 00000000 | 00000 |
The temperature rating of the fitting will vary depending on the gasket or O-ring material you choose. EPDM resists water and steam and works well in humid environments. Fluoroelastomer stands up to fuel, oil, and acid condensates. PTFE withstands 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 | |
Gaskets | ||||||||
|---|---|---|---|---|---|---|---|---|
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 | 0000000 | 00000 |
| 1 1/2" | 1.400" | 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 | 0000000 | 000 |
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 | 0000000 | 0000 |
| 1 1/2" | 1.400" | 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 | 0000000 | 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 | 0000000 | 0000 |
| 1 1/2" | 1.400" | 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 | 0000000 | 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 | 0000000 | 0000 |
| 1 1/2" | 1.400" | 1.980" | 0.203" | -15° to 400° | Black | 3-A Certified 18-03, FDA Compliant 21 CFR 177.2600 | 0000000 | 0000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.980" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
| 1 1/2" | 1.400" | 1.980" | 0.203" | -100° to 500° | White | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550 | 00000000 | 0000 |
O-Rings | ||||||||
EPDM Rubber | ||||||||
| 20mm | 22.000mm | 29.000mm | __ | 32° to 280° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
Viton® Fluoroelastomer Rubber | ||||||||
| 20mm | 22.000mm | 29.000mm | __ | 32° to 300° | Black | 3-A Certified 18-00 | 0000000 | 00000 |
PTFE Plastic | ||||||||
| 20mm | 22.000mm | 29.000mm | __ | 32° to 280° | White | 3-A Certified 18-00 | 0000000 | 00000 |
Yor-Lok Fittings for Steel Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil
- Tubing: Use with seamless steel
- Specifications Met: See table
A nut with two sleeves (ferrules) gives these fittings extra gripping power. The sleeves bite into tubing as you tighten the nut, creating a strong seal. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. Fittings are zinc-plated steel for fair corrosion resistance. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Specifications Met | Each | |
| 25mm | 2.2mm | Zinc-Plated Steel | 2,900 psi @ 72° F | -20° to 800° | ASME B31.3 | 00000000 | 00000 |
Nuts for Yor-Lok Fittings for Steel Tubing
- For Use With: Air, Mineral Oil, Fuel Oil, Gasoline, Diesel Fuel, Cutting Oil, Hydraulic Fluid
- Temperature Range: See table
- Tubing: Use with seamless steel
- Specifications Met: See table
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use these nuts with Yor-Lok sleeves and fittings to create an extra-strong seal on steel tubing. They are zinc-plated steel for fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Specifications Met | Each | |
| 25mm | 2.2mm | Zinc-Plated Steel | 2,900 psi @ 72° F | -20° to 800° | ASME B31.3 | 00000000 | 00000 |
High-Pressure Compression Fittings for Steel Tubing
- For Use With: Hydraulic Fluid
- Specifications Met: DIN 2353, ISO 8434
Thicker walls make these fittings—sometimes called flareless or bite fittings—withstand about twice as much pressure as standard compression fittings, so they’re good for hydraulic power applications. Their single sleeve, or ferrule, bites into tubing as you tighten the nut, creating a seal that is leak tight even at high heat. The nut and sleeve are included. All meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting pressures.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: See table
- Tubing: Use with seamless steel
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness | Pipe Size | Material | Maximum Pressure | Temperature Range, °F | Each | |
NPT Threads | |||||||
| 25 | Not Rated | 1 | Steel | 5,800 psi @ 72° F | -75° to 750° | 00000000 | 000000 |
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
| For Tube OD, mm | Nut Material | Maximum Pressure | Each | |
| 25 | Steel | 6,000 psi @ 72° F | 0000000 | 000000 |
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
| For Tube OD, mm | Sleeve Material | Maximum Pressure | Each | |
| 25 | Steel | 6,000 psi @ 72° F | 0000000 | 00000 |
Nuts for High-Pressure Compression Fittings for Steel Tubing
- For Use With: Hydraulic Fluid
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
- Specifications Met: ISO 8434, DIN 2353
Pair these nuts with compression sleeves and high-pressure fittings. They withstand about twice as much pressure as nuts for standard compression fittings, so they’re good for hydraulic power applications. As you tighten the nut, the fitting’s sleeve, or ferrule, bites into the steel tubing and creates a strong seal. All meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting pressures.
For technical drawings and 3-D models, click on a part number.
| For Tube OD, mm | Nut Material | Maximum Pressure | Each | |
| 25 | Steel | 6,000 psi @ 72° F | 0000000 | 000000 |
Sleeves for High-Pressure Compression Fittings for Steel Tubing
- For Use With: Hydraulic Fluid
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
- Specifications Met: ISO 8434, DIN 2353
Use these sleeves—also known as ferrules—with high-pressure compression nuts and fittings. They withstand about twice as much pressure as sleeves for standard compression fittings, so they’re good for hydraulic power applications. These sleeves bite into the steel tubing as you tighten the nut, creating a strong seal. All meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting pressures.
For technical drawings and 3-D models, click on a part number.
| For Tube OD, mm | Sleeve Material | Maximum Pressure | Each | |
| 25 | Steel | 6,000 psi @ 72° F | 0000000 | 00000 |