Inspection Plugs & Inspection Point Labels

NDT Seals manufactures inspection plugs, high-temperature inspection plugs, and inspection point labels used throughout the refining, petrochemical, chemical processing, power generation, and manufacturing industries.

Our products help inspectors and reliability professionals perform ultrasonic thickness testing (UT), monitor corrosion under insulation (CUI), identify thickness measurement locations (TMLs), and improve the efficiency of mechanical integrity programs.

Designed for repeatable inspections and long service life, NDT Seals products are trusted by inspectors, asset integrity teams, and industrial distributors worldwide.

Why Inspectors Choose NDT Seals


  • Faster Inspections

  • Repeatable Measurements

  • Long-Term Protection

  • TML, IPL, RBI, FFS, CMP, UTT, NDT, API, NACE, ASME – Why understanding this alphabet soup is critical to your asset’s safety

    TML, IPL, RBI, FFS, CMP, UTT, NDT, API, NACE, A...

  • The Importance of Consistent UTT at Labeled Locations for RBI Programs in High-Temperature Piping

    The Importance of Consistent UTT at Labeled Loc...

  • The Role of Quality Seals in Inspection Plugs: Fighting Corrosion Under Insulation (CUI)

    The Role of Quality Seals in Inspection Plugs: ...

Example Installation

INSPECTION PLUG

What Clients Are Saying


  • FIVE STAR SERVICE

    The NDT Seals team helped us find the right inspection plugs for our application and shipped overnight to meet our tight deadlines. Highly recommend!!!

  • COMMITMENT TO THE INDUSTRY

    You won't find another company more committed to the NDT industry and working together as a community to make the world a safer place.

  • THEY REALLY KNOW THEIR PLUGS

    Better design and better quality really does mean longer life. Thank you NDT Seals for a top notch product.