Phased array ultrasonic testing steers and focuses a multi-element probe electronically, producing a real-time cross-sectional image of a weld or wall in a single pass — faster and more sensitive than conventional single-element UT, and without the radiation controls RT requires.
Prime's Level II and Level III technicians run PAUT and fully automated ultrasonic testing (AUT) rigs for pipeline girth weld acceptance, corrosion mapping, and weld inspection on process piping and pressure equipment, delivering encoded, reviewable data files with every scan.
Certified Level II and Level III technicians, PAUT and AUT deployed where they give the clearest, fastest read.
Mechanized AUT scanning with encoded PAUT and TOFD channels for new-construction girth weld acceptance as an alternative to radiography.
PAUT-based wall-thickness mapping on piping and vessels to characterize corrosion, erosion, and wall loss over an inspected area.
Manual and encoded PAUT on process piping, pressure vessel seams, and nozzle welds where access or geometry limits radiography.
PAUT weld inspection on structural steel and fabricated components, imaging the full weld volume in a single scan.
Results are available immediately on-screen, with no film development or radiation exclusion zone to clear before the crew moves on.
Cross-sectional imaging is well suited to planar defects like lack-of-fusion that can be harder to characterize on a radiograph.
Level II and Level III technicians holding ASNT and AWS certifications, experienced with encoded PAUT and AUT scanning systems.
Scanning procedures qualified to the acceptance criteria in your project spec — API 1104, ASME B31, or ASME Section V, as applicable.
Prime covers the full method and industry range beyond PAUT and AUT.
Girth weld radiography and phased array UT for pipeline construction and integrity programs.
Turnaround and shutdown inspection for refinery and petrochemical process piping and vessels.
Conventional RT, digital radiography (DR), computed radiography (CR), and real-time radiography (RTR).
Field radiography and AUT for new-construction pipeline weld quality under API 1104.
NDT for hyperscale, colocation, and AI data center mechanical and structural systems.
Cryogenic-rated inspection for LNG liquefaction, regasification, and export terminals.
PAUT uses a multi-element ultrasonic probe to steer and focus the sound beam electronically, producing a cross-sectional image of the weld or wall in a single scan — faster and more sensitive than single-element conventional UT.
PAUT refers to the phased array probe technology itself; AUT (automated ultrasonic testing) refers to a mechanized scanner, often carrying multiple PAUT and TOFD channels, that records and encodes full weld coverage for pipeline girth welds — commonly used in place of radiography on new construction.
On many new-construction pipeline projects, yes — AUT/PAUT is an accepted alternative to RT under API 1104 when qualified per the code's AUT provisions. We confirm acceptance criteria against your project specification before mobilizing.
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