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Proficient Inspection Services Co. Ltd.

Proficient Inspection Services was formed by a visionary team of professional and experienced engineers, inspectors and metallurgists to produce a company focused on quality inspections with integrity.

Service, Consultation

Thailand

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Overview

Proficient Inspection Services was formed by a visionary team of professional and experienced engineers, inspectors and metallurgists to produce a company focused on quality inspections with integrity. As a prominent NDT service company whose headquarters is based in Bangkok, Thailand servicing vast industries not limited to Oil and Gas, Manufacturing, Power Generation and Fabrication not just locally but globally as well. Their branch office Proficient Inspection Services Sdn. Bhd. is located in Selangor, Malaysia which was purposely set up to expand the services in Malaysia.

Its vision is to be the most successful and respected specialized inspection company in Southeast Asia by providing quality services that exceed the expectations of its esteemed customers and expanding its services throughout the Asia Region.

Products & Services
Eddy Current Tube Testing (ECT)

Eddy Current Tube Testing (ECT) is widely used for testing on Non-Ferromagnetic tubes commonly in condensers, coolers and other heat exchangers. Power generation industries heavily rely on ECT to evaluate thousands of tubes in their condensers which can be inspected in a matter of few days only.

ECT uses alternating currents to drive the circumferentially wounded coils to produce eddy currents in the tubes. Changes in the eddy current flow will create a change of impedance in the coil and thus will be detected by the ECT system.

ECT is calibrated with an ASME calibration tube which has the same material grade and dimension of the tube to be inspected before inspection. ECT is highly sensitive to both internal and external defects such as pitting, holes, longitudinal cracks, stress corrosion cracking, fretting, and erosion.

Eddy Current Array (ECA)

Eddy Current Array (ECA) for tube testing is the most advanced eddy current inspection technique available up to date. The technique is highly optimized to inspect circumferential cracks in non-ferromagnetic tubes, which exceeds the limitation of a normal ECT bobbin probe.

Instead of having a normal circumferential coil, the ECA probe has an array of individual coils surrounding 360 degrees of the probe allowing it to detect cracks at any orientation. Cracks could be formed due to tube vibration (leading to fretting), stress corrosion, improper tube expansion, and primary defects from fabrication processes. The ECA technique uses multi-frequency channels to emphasize in detail any anomaly detected.

The inspection method requires an in-depth understanding of the electromagnetic testing technique with experience to confidently analyze and interpret the advanced eddy current signals.

Partially Saturated Eddy Current Testing (PSECT)

Partially Saturated Eddy Current Testing (PSECT) utilizes the same probes as normal bobbin ECT probes except that it uses strong magnets to saturate the non-ferromagnetic tube walls. The purpose of the magnets is to suppress or reduce the effects of permeability from the mildly magnetic tube.

This technique is however limited to relatively low permeability materials/mildly ferritic materials only such as Duplex, SEA-Cure, Monel, 3EE60, Nickel or 400-series stainless steel. Furthermore, it is only limited to saturating up to 1.5mm of the tube thickness. If the tube is thicker than 1.5mm, the probe is not likely to provide adequate magnetic saturation of the tube wall.

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