Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Extreme-Pressure Yor-Lok Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Natural Gas, Water
- Temperature Range: -420° to 1000° F
- Tubing: Use with seamless 316/316L stainless steel
- Specifications Met: ASME B31.3
These fittings have the highest pressure rating of all the Yor-Lok tube fittings we offer. They have two sleeves (ferrules) that bite into tubing as you tighten the nut, creating a strong seal. Fittings are also known as flareless fittings. They are not compatible with Swagelok®, Let-Lok, or A-Lok fittings. To connect, loosen the nut slightly, insert the tubing, then finger-tighten the nut and wrench-tighten 1 1/2 turns. Since there’s no need to remove the nut, the sleeves are always positioned correctly for installation. Fittings are 316 stainless steel for excellent corrosion resistance. A molybdenum disulfide coating on the nut acts as a lubricant for easy installation.
Nuts for Extreme-Pressure Yor-Lok Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Natural Gas, Water
- Temperature Range: -420° to 1000° F
- Tubing: Use with seamless 316/316L stainless steel
- Specifications Met: ASME B31.3
Use these nuts with extreme-pressure yor-lok sleeves and fittings to create a strong seal on stainless steel tubing. Nuts are 316 stainless steel for excellent corrosion resistance. They have a molybdenum disulfide coating that acts as a lubricant for easy installation.
Front and Back Sleeves for Extreme-Pressure
Yor-Lok Fittings for Stainless Steel Tubing


- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Natural Gas, Water
- Temperature Range: -420° to 1,000° F
- Tubing: Use with seamless 316/316L stainless steel
- Specifications Met: ASME B31.3
Use these sleeves with extreme-pressure 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.




























