O-Ring Face Seal Fittings

Superlok Tube Fittings are the industry leader in dual ferrule compression fittings.  Their Ra32 internal polish is the industry best ensuring that you will always get a leak tight fit.  Superlok has a lifetime warranty. They are 100% intermixeable and interchangeable with all other brands of compression fittings including but not limited to:

  • Swagelok
  • Parker
  • SSP
  • Tylok 
  • Bi-Lok
  • DK-Lot
  • Fit-ok
  • Ham-Let
  • Hi-Lok

Dual Ferrule Compression Fittings are made of 316SS, with a short and long ferrule they are designed to crimp onto the stainless steel or carbon steel tube/pipe and withstand pressure of up to 10,000psi. 


  • Superlok O-Ring Face Seal Fittings are designed for rapid assembly in pipe, tube and welded systems.
  • Unique design allows easy installation where space is limited.
  • No axial clearance is required.
  • Sealing is accomplished with a captive O-Ring in the body component.
  • Assemblies can be used from high pressure to critical vacuum, within a wide range of temperatures.

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