Westech Inspection, Inc. provides a complete tube inspection service with our MultiScan MS5800. This advanced tube inspection system has bundled four inspection technologies into a single unit. Eddy current, Remote Field ET, IRIS, and MFL.
The ET & RFT is a high-speed, multi-channel, multi-frequency scanning system with advanced reporting and tube sheet mapping software.
The IRIS system is a single channel ultrasonic scanning system with the ability to inspection tubes in a wide range of diameters.
Two Major Advantages
- We always have the right system for the job.
- We can use a second tube inspection technology to back up anything found during the primary inspection.
Eddy Current (ECT)
- Eddy Current is a cost effective and reliable way to
- Inspect non-ferromagnetic tube and materials.
- Condensers, feed water heaters, air conditioners,
chillers, and other heat exchangers
- Detection and sizing of metal discontinuities such as
corrosion, erosion, tube-to-tube wear, pitting, fretting,
- Multi-frequency inspection with mixing and filtering
- Data is recorded and archived which will allow you to
track the corrosion rate for each tube.
Remote Field Testing (RFT)
- Full wall inspection of ferromagnetic tubes
- Used for the detection and sizing of wall thinning caused by corrosion, erosion, wear, pitting and baffle cuts.
- Used to inspect boilers, feed water heaters, air coolers,and carbon steel heat exchangers.
Magnetic Flux Leakage (MFL)
- Inspection technique suitable for wall-loss detection and measurement of sharp defects, such as pitting, grooving,
and circumferential cracks.
- Applicable to ferromagnetic tubing
- Effective for testing aluminum-finned carbon steel tubes because the magnetic field is mostly unaffected by the fins.
- A good Back-up inspection to Remote Field Testing.
Near Field Testing (NFT)
- Inside diameter testing only
- Detect corrosion, erosion and pitting inside carbon steel tubing
- Unaffected by external structures such as tubesheets and support plates
- Used to inspect Fin Fans tube heat exchangers
Internal Rotating Inspection System (IRIS)
IRIS is an ultrasonic technique used for the inspection of a
wide range of materials, including both non-ferromagnetic and
- Allows for the detection and sizing of wall loss as a result of corrosion, erosion, tube-to-tube wear, pitting, fretting,
cracking and baffle cuts.
- Focused ultrasonic probe and a rotating mirror to produce
a helical scan.
- Ultrasound is reflected from the tube ID and OD and the
time difference is used to calculate the thickness.
- IRIS is a great backup and verification tool for the other
tube inspection techniques
- IRIS data to be presented as a B, C, or D-scan image.
Westech technicians are qualified and certified in accordance with the SNT-TC-1A guidelines and can provide on-site or in-house data interpretation. After data acquisition and analysis are complete, a comprehensive report with a color coded tube sheet map will be issued.