Corrosion under insulation (CUI) is a type of metal corrosion that can occur when moisture and oxygen get into insulation systems. CUI can be difficult to detect because the insulation can hide the corrosion. Here are some methods used to inspect for CUI:

Visual inspection: This involves removing the insulation, checking the pipe’s surface, and then replacing the insulation. It’s the most expensive and time-consuming method.

Real-time X-ray: This is a safe, fast, and effective method for inspecting pipes in plant operations.

Radiography: This includes conventional and unconventional radiography.

Pulsed eddy current: This is another method used to detect CUI.

Guided-wave ultrasonic: This is another method used to detect CUI.

Ultrasonic thickness measurements: This is another method used to detect CUI.

CUI can cause leaks, equipment failure, and unexpected downtime. It’s most common in chemical, maritime, and petrochemical companies.

CORROSION UNDER PIPE SUPPORT (CUPS)

Guided-wave ultrasonic: This is another method used to detect CUPS.

Ultrasonic Testing: This is common method used to detect CUPS.

Real-time X-ray: This is a safe, fast, and effective method for inspecting pipes in plant operations.

Radiography: This includes conventional and unconventional radiography.

INSPECTION METHODS

Long Range UT
Computed Radiography (CRT)
Digital Radiography (DRT)
Profile Radiography
Real Time Radiography (Open Vision)