WEKO-SEAL can be used for trenchless rehabilitation of of variety of pipeline configurations and materials



  • Non-corrodible, bottle-tight seal with minimal reduction of the pipeline’s interior diameter
  • Handles operating pressures in excess of 300 psi and 100 feet of external head pressure, with proper design


  • Accommodates normal pipe movement from ground shifting, thermal expansion or contraction, and vibration
  • Patented design for positive mechanical locking system with wedge
  • Test valves standard in all seals
  • Durable cross-sectional seal thickness
  • Design and installation options for standard round pipes as well as lines with unusual shapes including oval, square or those having compound angles


Trenchless Installation

  • Minimum surface disturbance
  • Access openings can be in excess of 2,000 feet apart
  • Entrance through manholes, vaults, fittings or cut-outs
  • Fast installation lends itself to immediate or emergency situations


  • Savings of up to 60% over conventional repair methods
  • Maintenance free

Wide Range of Application

  • Water, wastewater, natural gas pipelines
  • Steel, cast iron, ductile iron, reinforced concrete and more
  • 16 inches to 216 inches in diameter


Why Choose Miller Pipeline Corp.



  • Over 30 years of turnkey installation experience
  • With 225,000 seals installed, we are the most experienced contractor in the industry
  • Skilled confined space installation technicians

Guaranteed Standards

  • The highest standards of material integrity and workmanship are continually monitored and maintained
  • All installations are warranted


Trained Personnel

  • Trained, experienced personnel handle the seal installation process in full compliance with OSHA’s 29 CFR 1910.146 Permit-Required Confined-Space regulations with rescue and retrieval equipment on the job site at all times
  • Miller crews are trained and certified in first aid, CPR, SCBA and emergency rescue procedures


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