NDT Inspection Plugs
NDT Inspection Plugs for continuous monitoring of Corrosion under Insulation (CUI) and mechanical integrity testing.
Specified plugs are engineered for insulated pipe, storage tanks, pressure vessels and petrochemical, oil and gas, steam and nuclear power generation facilities.
Removable inspection plugs allow repeat access for EPA/OSHA inspection and testing.
Inspection Plugs seal access testing points with Aluminum or Stainless Steel metal cap.
- Protect against Corrosion Under Insulation (CUI)
- Resistant to Chemical and UV Exposure Protection, Ozone and Weather
NDT Inspection Plug Sizes
Diameters: 1.5″ | 2.5″ | 3.0″ | 5.0″
(38 | 64 | 76 | 127 mm)
Plugs can be installed on smooth or corrugated insulated jacketing.
EPDM sleeve, metal cap with handle, lanyard and locking ring included.
NDT Plug Installation
Locate and mark the insulation jacket where the inspection plug will be installed:
- Hole saws are best to penetrate the insulation jacket, cut a circumference equal to the plug to be installed.
- Use either tin snips or a holesaw to penetrate the insulation jacket with a diameter equal to the size of the Inspection Plug.
- Remove the insulation to expose the substrate for inspection.
- After inspection, re-insert the insulation or replace it with a high-density material.
- Insert the EPDM or Silicone Sleeve.
- Install the Inspection Plug Locking Ring and Lanyard if equipped.
- Insert the metal cap to create a seal
Note: Caulking around sleeve for cold weather applications recommended
TML / UT Inspection Point Labels
Test Measurement Location (TML)
+ Ultrasonic Testing (UT)
Inspection Point Labels
Heavy Duty design to
ID and locate testing access points.
250) labels per roll
Free Ground Shipping
Inspection Point Labels
- Clean and dry the application surface for maximum bond strength.
- The surface should also be free of loose particulates, such as dust, dirt, and corrosion.
Note: Acrylic adhesive requires 48-72 hours to achieve 90% of its ultimate bond strength.
