NDT Inspection Ports


TML / UT Inspection Point Labels

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NDT Inspection Plugs

Nondestructive Inspection Ports (Plugs & Seals) for NDT inspection, testing, and evaluation (NDE) under insulation.

Removable (reusable) inspection ports allow repeated access to inspect surface conditions for CUI (corrosion under insulation) on storage vessels, tanks, and pipelines in processing and refining operations.

The NDT Inspection Port consists of an elastomer sleeve and a metal cap, with or without a handle, lanyard, and locking ring. The elastomer Sleeve is available in either EPDM (ethylene propylene) or silicone. The Metal Cap is available in either #5052 aluminum or #304 stainless steel.

Installed and in use in Bio, Chemical, Pharma, Steam, Nuclear, LNG, Petrochem facilities and vessels nationwide.


Our NDT Inspection Ports (a.k.a. Plugs & Seals) do not require transition gaskets for corrugated applications and no special configurations for smaller diameter pipe applications.

The NDT Inspection Port is designed for periodic visual and electronic inspection access to insulated pipes, tanks and vessels.

Our NDT port seals an inspection opening with a metal cap inserted into an elastomer sleeve, creating a moisture-proof seal.

Specified, engineered to a higher standard.

Installed Inspection Plugs

Insulated NDT Inspection Ports

NDT Inspection Point Access Labels are used to locate and identify TML (Thickness Measurement Location) & UT (Ultrasonic) testing points on insulated and non-insulated pipes.

TML Point Labels are constructed from a 3.5 mil matte silver mylar polyester material. 

1.0 mil UV laminate matte surface coating resists degradation from scuffing, chemicals, moisture, and temperature fluctuations.

Label adhesive is a high-performance acrylic for excellent bonding to metals, HSE plastics, and a variety of painted surfaces.

TML / UT Point Labels