NON-DESTRUCTIVE TESTING & INSPECTION

RF Technology Solutions Nigeria Limited (RFTS) is a leader in the non-destructive testing (NDT) industry by providing a wide array of traditional and state of the art analysis techniques to evaluate materials, components and systems.
Our technical and engineering teams contain qualified inspectors to perform Magnetic Particle Testing (MPT), Ultrasonic Testing (UT), Radiographic Testing (RT), Liquid Penetrant Testing (DPT), Eddy Current Testing (ECT) Visual Testing (VT), Remote Video and Specialized Material Analysis that conforms to nationally recognized codes, Tank Calibration and Inspection Services: Third party inspection and expending of all Mechanical, Electrical & Instrumentation Systems, Piping/Structural Module Inspection.
Our extensive capabilities make us the company of choice for NDT needs. Our innovative technologies provide solutions of unequalled service in the NDT and inspection field.
We aim to provide cost savings and reliable assurance to Clients through the development of innovative inspection solutions, and by interfacing with related technologies such as engineering critical assessment, risk-based inspection, reliability analysis, and repair procedure development.

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Magnetic Particle Inspection (MPI)

MPI detects surface and near surface flaws in ferromagnetic materials and is primarily used for crack detection. Following magnetization, the specimen is covered with very fine iron particles either dry or suspended in a liquid. Surface breaking flaws distort the magnetic field causing local magnetic flux leakage that attracts the iron particles producing a build-up that can be seen visually.

Eddy Current Testing

Electrical currents are generated in a conductive material by an induced alternating magnetic field. The electrical currents are called eddy currents because they flow in circles at and just below the surface of the material. Interruptions in the flow of eddy currents, caused by imperfections, dimensional changes, or changes in the materials conductive and permeability properties, can be detected with the proper equipment.

Dye Penetrant Testing

Test objects are coated with visible or fluorescent dye solution. Excess dye is then removed from the surface, and a developer is applied. The developer acts as blotter, drawing trapped penetrant out of imperfections open to the surface. With visible dyes, vivid color contrasts between the penetrant and developer make "bleedout" easy to see. With fluorescent dyes, ultraviolet light is used to make the bleedout fluorescence bright, thus allowing imperfections to be readily seen.

Ultrasonic Inspection (UT)

Ultrasonic Testing is generally a more appropriate inspection method for deeper penetrations. Ultrasonic methods of NDT use beams of mechanical waves (vibrations) of short wavelength and high frequency, transmitted from a small probe in contact with the specimen surface and detected by the same or other probes. Such mechanical vibrations have different forms depending on the direction of particle movement in the wave motion, so there are several forms of ultrasonic waves.

Phased Array

This is an advanced non-destructive testing (NDT) method that uses an ultrasonic technique to determine component quality and detect failure such as flaws or cracks. The phased array probe produces a steerable, tightly focused, highresolution beam that creates a detailed image slice of a structure or weld making it easy to identify flaws or discontinuities. The system is suitable for both onshore and offshore purposes with results being produced in real time.

$Time of Flight Diffraction (TOFD)$

Time of Flight Diffraction (TOFD)

TOFD is an advanced high performance non-destructive testing (NDT) technique which offers the accurate detection of cracks, slag and lack of fusion. It is widely used for welding, scanning in pressure vessels and pipelines. TOFD provides a fully computerized system able to scan, store, and evaluate indicators in terms of height, length, and position. Our personnel have years of experience in planning, managing and carrying out TOFD on pre-service and in-service projects.

EMAT or Electro Magnetic Acoustic Transducer

This is an Ultrasonic Testing (UT) technique that generates the sound in the part inspected instead of the transducer. EMAT transducers are a hybrid device that uses electromagnetic fields to generate and receive ultrasonic waves. It therefore gains many of the advantages of electromagnetic inspection, such as the ability to be used on irregular Page 10 of 33 surfaces, as well as the advantages of ultrasonic testing, such as the ability to detect corrosion. The EMAT probes generate a guided ultrasonic wave in the pipe that travels in the circumferential direction. This wave is sensitive to corrosion losses on both the ID and the OD of the pipe, and travels between the transmitting and the receiving EMAT transducer. EMAT provides a 100% volumetric inspection.

Internal Rotary Inspection System (IRIS)

Internal Rotary Inspection System (IRIS) consists of a high frequency ultrasonic immersion probe inside a rotating test head, used to examine tubes for internal or external corrosion or erosion damage. It can accurately measure remaining wall thickness in most instances.

Radiographic Inspection (RT)

This NDT technique is commonly performed using gamma-rays or X-rays to produce the image of an object onto film. Because of the penetration and absorption capabilities of X- and gamma radiation, radiography is used to test a variety of products such as welds, castings, forgings, and fabrications. The source of radiation is either an X-ray tube, which normally is described by the electrical voltage across the X-ray tube. The higher the voltage, the higher the penetrating power of the radiation or a pellet of radioactive material emitting gammarays: Iridium 192, Cobalt 60, Selenium 75, Ytterbium 169.

Remote Video Inspection

Remote Video Vehicles have the ability to inspect difficult-to-access locations which would typically require rope access or scaffolding, as well as minimizing risk, reducing costs and increasing uptime for asset operators.

Rope Access Services

RFTS is a provider of multi-disciplined Rope Access services to most industry sectors, including the upstream and downstream oil and gas industry. Combining rope access and Non-destructive testing has enabled RFTS provide some of the most efficient and advanced methods of inspection

NON-DESTRUCTIVE TESTING & INSPECTION

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