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Insulating Joints

PSI Monobloc Insulation Joints are completely factory assembled and tested. They serve as a positive leak proof long lasting block against the flow of electrical current in all piping systems regardless of application.

When you bury PSI Insulation Joints, you also bury maintenance costs forever, an especially important feature for system operators and engineers.


  • Eliminates short circuits
  • Eliminated field assembly
  • Eliminates maintenance
  • Is less expensive
  • Is coated both internally and externally
  • Is 100% electrically tested
  • Is completely weld inspected
  • Is manufactured in accordance with ISO9001:2000 specifications
  • Available in any diameter
  • Available in any ANSI Class & Stocked in ANSI Classes 150#, 300-400# and 600#