We offer a full range of **advanced Non-Destructive Testing (NDT)** techniques for the inspection of heat exchanger, condenser, boiler, and air cooler tubes. These methods are designed to detect and quantify **corrosion, pitting, erosion, fretting, and wall thinning**, ensuring plant reliability and efficient maintenance planning.
- (+91) 81228 78871
(+91) 75985 00042
- mfarsglobal@gmail.com
Tube Inspection
MFARS Global provides specialized NDT Training & Consultancy Services with international standards and best practices.
I. INTERNAL ROTATING INSPECTION SYSTEM (IRIS)
IRIS uses ultrasonic immersion pulse-echo technology in combination with a rotating mirror probe to measure tube wall thickness from the inside.
Key Features
- Suitable for detecting **internal and external corrosion, pitting, and wall loss**.
- Minimum measurable wall thickness: **~0.5 mm**.
- Not suitable for **crack detection**.
- The scope is defined by client specifications or a mutually agreed-upon work scope.
- Requires water flushing for coupling.
Need precise tube inspection for your critical equipment?
Contact us to schedule a demo, inspection, or receive a detailed proposal.
II. EDDY CURRENT (ET)
Eddy Current Testing (ET) is used primarily for non-ferrous tubes (e.g., copper, brass, stainless steel). It uses bobbin coil probes to detect:
- Localized corrosion
- Pitting
- Wear and erosion
- Tube expansion defects
It's highly efficient for **fast scanning of large tube bundles** during shutdowns.
Need precise tube inspection for your critical equipment?
Contact us to schedule a demo, inspection, or receive a detailed proposal.
III. REMOTE FIELD (RFT)
Remote Field Eddy Current Testing (RFET) is ideal for ferromagnetic tubes like carbon steel, where conventional eddy current is less effective.
How It Works
- Uses a **transmitter-receiver configuration** spaced beyond 2x the tube diameter.
- Detects **wall loss, corrosion, and erosion** by analyzing the **phase shift and amplitude** of signals.
- Provides **full through-wall inspection** as the signal passes **twice through the tube wall**.
- Excellent for **in-service inspection** of boiler and heat exchanger tubes.
Need precise tube inspection for your critical equipment?
Contact us to schedule a demo, inspection, or receive a detailed proposal.
IV. NEAR FIELD TESTING (NFT)
Near Field Testing is an emerging NDT method used for inspecting carbon steel fin fan cooler tubes—particularly where Magnetic Flux Leakage (MFL) is not effective.
Key Features
- Limited to **ferromagnetic materials**.
- Uses a simple **driver-pickup probe** with differential and absolute signal channels.
- Measures defect **depth and size** with good sensitivity.
- Calibration on similar reference tubes is essential for **accurate sizing**.
- A reliable solution for inspecting **tight-radius or finned tubes**.
Need precise tube inspection for your critical equipment?
Contact us to schedule a demo, inspection, or receive a detailed proposal.