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Phased Array Services
How Phased Array Works
Phased Array Ultrasonics (PAUT) is an advanced ultrasonic technique that permits the shaping and steering of the ultrasonic beam angles, dynamic depth focusing and enhanced beam coverages. The Phased Array beam sweeps like a searchlight through the object, resulting in a recordable image that reveals defects hidden inside a structure or weld; much like an ultrasound our sonogram used in a hospital.
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Why Phased Array
Phased Array offers definitive advantages over conventional ultrasonics by providing imaging that can often produce more accurate results, and like most imaging techniques, provides a higher level of reproducible results while minimizing human error. Phased Array also allows for enhanced coverage of a given component or weld from fixed and multiple positions including achieving beam coverage on complex geometries where conventional ultrasonic techniques were inadequate. Some of the many applications for Phased Array are as follows:
Advantages of using Zengary Phased Array
Faster process than manual ultrasonic testing
1Higher reliability
2Enhanced quality and accuracy
3Increased probability of detection
4No radiation exclusion zone
5Ability to test welds with multiple angles using a single probe
6Data can be captured, stored and referenced at a later date
7Proven, qualified procedures
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Weld inspections
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New construction; rigorous ASME, API, AWS and other UT in lieu of RT inspections
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Pressure boundary welds; i.e. girth, longseam and nozzles
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Non-pressure boundary welds; i.e. attachment welds, tray welds, gussets, etc.
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In service rigorous on-stream inspection program including high temperature up to 700F
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Pressure vessels, reactors and piping
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Pipeline integrity
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Critical flaw sizing and monitoring
Some additional applications may include:
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Flanges; graylock, raised face, ring groove, etc. for cracking or corrosion
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Bolts, shafts, pins
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Tube to header welds
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Turbine blades
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Most any other component with an area for access to provide Phased Array
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Cost and Quality Benefits of Phased Array
Phased Array delivers significant benefits that improve operational efficiency and potential cost savings:
The most revealing advantage is in the area of “UT in lieu of RT” and the elimination of radioactive sources and the barricading or exclusion zones, including the ability to perform PAUT examinations with minimal impact to construction crews or other work activities.
Enhanced weld quality when required and enhanced productivity with less crewmembers.
Enhanced sensitivity for the more critical flaws (non-fusion, cracking) and less sensitivity for the less critical flaws (slag, porosity).
When combined with Time of Flight Diffraction (TOFD) and our fully automated systems/process, it is not uncommon to achieve 300 – 500 linear feet of weld inspected in one shift with a single crew; ideal for tanks and large vessels.
Contact Zengary For PAUT Solutions
Contact us online to get in touch with a Zengary representative about our PAUT services
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ZENGARY GROUP is a leading, global, one-source provider of asset protection solutions, used to evaluate the structural integrity of pressured equipment in the petroleum and oil and gas, industrial and public infrastructure.
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