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Tank Inspection Services (API 653, 570, 510 and STI SPOO1)

HMT Tank Inspection offers a complete line of NDE services and engineering evaluations per API Standard 653, API Standard 570, API Standard 510, STI Standard SP001, and AWWA D100. Our certified inspectors and engineers work as a team to provide quality, comprehensive inspections.

·     Tank Inspection
We perform comprehensive tank inspections, which meet, or exceed, the requirements established in API 653 or STI SP001. The personnel used to perform this inspection are certified individuals and have been further trained by HMT Inspection.

We offer the latest in NDE equipment for tank inspection including the Magnetic Flux Leakage (MFL) Floorscanners, the Motorized MFL Mini Scanner and MFL Manual Scanner for inspection adjacent to the corner welds and under steam coils and internal piping, ultrasonic thickness, magnetic particle, vacuum box testing and helium leak testing, ACFM and other NDE techniques. 

·     Scanner for Bottoms with Thick Reinforced Liners
HMT Inspection provides the latest innovation in tank bottom inspection, SLOFEC (Saturation Low Frequency Eddy Current). The SLOFEC scanner is designed to inspect tank bottoms with reinforced coatings up to 0.300 inch thick. The scanner uses a combination of electro-magnetic and eddy current technologies to inspect through thick coatings. SLOFEC can – detect corrosion as well as locate the corrosion (soil side or product side) on the plates. This system also has the capability to quantify the remaining plate thickness resulting from soil side metal loss. This method of testing disturbs a minimum amount of coating.

·     Engineering Services
Our engineering services include evaluations per AWWA, API Standard 653, API Standard 510 and API 570 based on data gathered from the field inspections and evaluated using information recommended by codes or standards. A few of the evaluations we provide are: settlement evaluations, corrosion rate calculations, safe fill height calculations, seismic evaluation, brittle fracture evaluations, maximum working pressure and other evaluations referenced in the standards. Other engineering services include fitness for service evaluations and inspections per various state environmental regulations. We also perform specialized evaluations such as out-of-roundness surveys and verticality evaluations.

·     Helium Mass Spectrometer Leak Testing
Helium leak testing has proven to be a very effective method for the detection of leaks in many petrochemical applications, including tank bottoms, roof pontoons, roof drain systems and heat exchangers.

·     Automated Ultrasonic Crawler
HMT Inspection offers an automated crawler for performing ultrasonic line scans. The system is highly effective for providing continuous ultrasonic thickness data on tank shells and storage spheres.

·     Alternating Current Field Measurement (ACFM) Inspection
ACFM is a non-contacting technique to detect and size surface breaking crack-like defects through coatings up to a thickness of 0.200 inch.  We have used this method to detect crack-like defects in tank shell-to-bottom welds, tank bottom lap welds, sumps, nozzle and appurtenance welds and Stress Corrosion Cracking (SCC) in ethanol service.  Surface preparation is reduced compared to other NDE techniques.

·     Piping Inspection
Our piping inspection program includes MFL PipeScan services, which provides near 100% inspection coverage for above ground un-insulated straight runs of piping and vessels up to 0.750 inch wall thickness. Our API 570 inspections and engineering evaluations provide NDE data, visual inspection, and engineering assessments that include maximum working pressure (MAWP) and remaining service life calculations.

·     Low Pressure Storage Spheres/Pressure Vessels
Our vessel inspection program includes a full line of NDE inspection services for low-pressure storage spheres, pressure vessels and bullet tanks including a staff of experienced API 510 inspectors. Our services include an automated ultrasonic crawler and MFL wallscan.

·     NDE Services
HMT Inspection offers a full line of NDE services, including ultrasonic thickness, magnetic particle testing, liquid penetrant, visual and other NDE methods. Our inspectors are certified per ASNT SNT TC-1-A (Level I, II, and III) for ultrasonic, magnetic particle, liquid penetrant, visual, and other NDE methods.

·     Turnkey Cleaning and Inspection Services
HMT Inspection can provide the combined service of tank cleaning and inspection.  In response to many customer requests, HMT Inspection has successfully teamed up with other key vendors to provide complete cleaning and inspection services with just one phone call/purchase order. This provides quicker tank turn-around, reduces internal project management and coordinates costs and insures no added mobilization cost for any additional cleaning to accommodate the inspection process. Additionally, all key vendors are evaluated thoroughly to insure all client qualification requirements are met and are in place.

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