NDT Inspection Plugs
NDT Inspection Plugs for monitoring Corrosion under Insulation (CUI) and mechanical integrity.
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.
View: Inspection + Testing Access Points
Inspection Plugs seal NDT access points with removable aluminum or stainless steel metal caps.
- Inspection for Corrosion Under Insulation (CUI).
- Chemical and UV exposure protection, ozone and weather resistant.
NDT Inspection Plug Sizes
Diameters: 1.5″ | 2.5″ | 3.0″ | 5.0″
(38 | 64 | 76 | 127 mm)
Note: NDT Plugs can be installed on smooth or corrugated insulated jacketing.
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
Inspection Plug Installation
TML / UT Inspection Point Labels
Test Measurement Location (TML)
+ Ultrasonic Testing (UT)
Inspection Point Labels
Heavy Duty design to locate
and ID access points.
250) labels per roll
Free Ground Shipping