Providing NDT, inspection, and quality assurance services during the construction, fabrication, commissioning, and maintenance of major infrastructure and industrial projects. Experience includes Sasol Synfuels plants, PetroSA facilities, Koeberg Nuclear Power Station, Kusile Power Station, and numerous fabrication workshops and structural steel projects.
Our Experience in the Construction Industry
Since 1980
De-Tect Unit Inspection’s origins trace back to some of South Africa’s most significant industrial and energy infrastructure projects. The company was actively involved in construction-phase NDT and inspection services for the Sasol Synfuels plants in Secunda, Koeberg Nuclear Power Station, Africa’s only nuclear power plant, Kendal Power Station Units 5 and 6, as well as the Mossgas onshore refinery and offshore FA platform (now operated as PetroSA).
These projects included pre-service inspections for the nuclear sector, followed by long-term in-service inspection and maintenance programmes. Many of these relationships continue today, including ongoing work at Sasol Synfuels and Koeberg Nuclear Power Station.
1998 - 1999
De-Tect Unit Inspection was awarded a major contract at Koeberg Nuclear Power Station, taking full responsibility for project management and execution of comprehensive inspection scopes. These included manual ultrasonic testing, surface inspections, flow accelerated corrosion assessments, repair and replacement programmes, snubber testing, as well as marine and civil corrosion inspections.
During this period, De-Tect strengthened its strategic position by entering into an association agreement with Rotek Engineering (Pty) Ltd and securing additional contracts for inspection and testing services at Koeberg.
De-Tect also successfully executed the Inspection, NDE, and Testing scopes for Outages 110 and 210 within strict time constraints, achieving exceptionally low radiation exposure levels.
Beyond the nuclear sector, the company completed all ultrasonic inspection work on fabricated components for the Mossgas / Dresser Kellogg (Bredasdorp alliance) E-M field development expansion programme, along with surface inspection work on the R01 module and PLEM structure on the West Coast.
In addition, De-Tect demonstrated innovation by designing and manufacturing a cost-effective ultrasonic manipulator for the inspection of cast riding rings on cement kilns for PPC Cement.
2011
De-Tect Unit Inspection continued to deliver specialised NDT services within the power generation sector, performing surface inspection services at Koeberg Nuclear Power Station from May to November 2011.
The company strengthened its long-term presence in Eskom’s fleet by securing a four-year contract at Grootvlei Power Station for NDT services during outages and maintenance. This relationship was later reaffirmed with the re-award of the Grootvlei contract in 2019 (under Stanley Inspection South Africa) for a further 36-month period.
De-Tect also supported major industrial and power projects across South Africa, including NDT services for Kentz on the 10th SASOL reactor, covering radiographic, magnetic particle, penetrant, and ultrasonic testing (RT, MT, PT, UT).
Additional project work included inspection services at Kusile Power Station (Concor), involving MT, PT, UT, and Phased Array (PAUT), as well as NDT services for Kentz at Komatipoort, covering RT, MT, and PT scopes.
2020
As part of a global strategic realignment, Stanley Oil & Gas divested its South African operations to a local management consortium operating under NYTS Holdings (Pty) Ltd. As a result, SISA Inspection, De-Tect Unit Inspection, and Cooperheat of Africa became fully locally owned entities under the new holding structure.
This year also marked a significant milestone, celebrating 40 years since the establishment of the original South African business, which was founded in 1980 during the construction of major infrastructure projects including Koeberg Nuclear Power Station, Sasol Synfuels plants, Eskom power stations, and the Saldanha Steel facility.
De-Tect continued to secure long-term work within the power generation sector, including a five-year contract at Eskom's Kriel Power Station for metallographic replication services. The company also expanded into the renewable energy sector, being awarded a contract to perform NDT services for GRI Wind Towers during fabrication processes.
In addition, De-Tect secured a framework agreement with Steinmüller Africa for the provision of NDT services within their fabrication workshop environment.
2021
De-Tect Unit Inspection continued to strengthen its industry standing through professional recognition, attaining and renewing full membership with the American Society for Nondestructive Testing and securing membership with the Southern African Institute of Mining and Metallurgy.
The company maintained strong momentum in the power generation sector, securing contracts for metallographic replication at Matimba Power Station, as well as NDT services (MT and PT) at Majuba and Lethabo Power Stations for FieldCore.
In the petrochemical sector, De-Tect was awarded multiple contracts at Sasol Secunda, including NDT and heat treatment services for Wetback projects, as well as broader support during the 2021 shutdown. The company also completed a series of Eddy Current inspection projects across multiple units, including waste heat boilers and turnaround activities extending into 2022.
De-Tect further expanded its industrial footprint by performing NDT on kiln rollers and shells for Sephaku Cement, and maintaining ongoing call-out services for a wide range of clients across engineering, fabrication, and mining sectors.
Regionally, the company secured a significant three-year contract with Illovo Sugar to provide NDT services across six sites in Zambia, Mozambique, Malawi, eSwatini, South Africa, and Tanzania.
In addition, De-Tect was awarded a specialised project involving Eddy Current Testing (ECT), Remote Field Testing (RFT), and Magnetic Flux Leakage (MFL) inspections on two 12 km water pipeline systems in KwaZulu-Natal.
2024
De-Tect Unit Inspection began the year by strengthening relationships with existing clients while securing new opportunities across multiple sectors. The company expanded its portfolio with projects for Air Liquide and Babcock International, and was awarded new work in the renewable energy sector, providing NDT services at the Dorper Wind Farm for Altitec, as well as NDT oversight for Ansaldo Energia.
In support of the growing renewable energy supply chain, De-Tect received a purchase order from ArcelorMittal to perform NDT on wind tower plates at its Vaal branch for Vestas.
The company further diversified into the mining sector, securing a contract for Eddy Current inspections at the Karowe Mine operated by Lucara Diamond.
Within the nuclear sector, De-Tect was awarded advanced NDT work at Koeberg Power Station by John Thompson, including Phased Array Ultrasonic Testing (PAUT) and Time of Flight Diffraction (TOFD).
In the oil and gas sector, De-Tect secured a significant three-year contract with PetroSA to provide ongoing NDT services.
Collective Industry Experience done by Tube Inspection Personnel
Our tube inspection team brings together extensive international industry experience gained by our personnel throughout their professional careers, including experience acquired prior to joining our company.
Collectively, our Eddy Current specialists have contributed to tube inspection projects for prestigious clients across the globe. Their individual experience spans a wide range of industries, including power generation, petrochemicals, mining, manufacturing, and oil & gas, where they have applied their expertise in support of complex inspection programmes.
This information reflects the professional experience of our personnel and should not be interpreted as representing projects undertaken by the company.
Our team's experience spans the following major industries:
- Oil & Gas (Upstream, Midstream & Downstream)
- Oil Refineries
- Petrochemicals
- Fertilizer & Ammonia Production
- Power Generation
- Liquefied Natural Gas (LNG)
- Mining
- Water Treatment & Desalination
- Engineering, Procurement & Construction (EPC)
- Industrial Manufacturing & Maintenance
This broad industry exposure demonstrates extensive experience in heat exchanger, condenser, boiler, and process equipment tube inspections across some of the world's most demanding industrial sectors.
Construction Industry Eddy Current Testing
The projects listed below reflect the collective Eddy Current Testing expertise of our personnel, based on projects successfully completed in their individual professional capacities across the Construction Industry.
- CTCI Corporation Thailand - Engineering, Procurement & Construction (EPC)