NDT Services

To improve manufacturing quality and product reliability, components and structures are regularly inspected for discontinuities, defects or faults which may reduce their structural integrity leading to failure. Among the material testing methods developed for inspection purposes, Non-destructive testing (NDT) techniques present the advantages of leaving the components undamaged after inspection.

Trinity NDT inspection facilities are equipped with modern NDT equipments, approved practices, procedures, qualified and certified NDT Level I, II, technicians and in-house ASNT NDT III certified professionals, materials testing experts, welding inspection and quality control personnel.

Why NDT ?


NDT can be used to:
  1. Weeding out defective raw materials /components at the incoming stage itself instead of accepting and paying for it
  2. Detect defects that may occur during the manufacturing process before spending time and money on further processing of the defective materials
  3. Improve manufacturing techniques by inspecting the product during processing operations to maintain uniform quality and standard
  4. Detecting discontinuities at final stages of manufacturing to improve product reliability and safety during operation
  5. Inservice inspection to detect service induced flaws
  6. Ensure prevention of accidents and promote safety for workers and equipment during over hauling and maintenance
  7. Enhance the reputation of manufacturer as producer of quality products
 

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NDT Inspection facilities at Trinity NDT


1. Ultrasonic Testing

Ultrasonic thickness gauging of ship pressure piping

Ultrasonic testing (UT) is carried out for evaluating the internal soundness of many engineering products made of steels and other metals and nonmetals processed through Casting, forging, rolling, extrusion, drawing and other modern processing techniques. Ultrasonic inspection is also extensively being used for evaluating the quality of welds, in-service inspection of critical process equipments, storage tanks, cross country pipelines, pressure vessels and assemblies. Trinity NDT is fully equipped with calibrated, latest DGS Ultrasonic equipments, qualified, certified and experienced Level I, II technicians, ASNT NDT level IIIs, experts to carry out these tests and other related services within the shortest possible response time.

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3. Liquid/Dye Penetrant Testing

Cracks observed using dye penetrant testing of forged hub

Liquid Penetrant Testing (PT) also called as Dye penetrant testing (DPT) is widely for detecting surface opened flaws in critical engineering components, weldments and structures. 'Trinity NDT' has experienced certified inspectors and technicians for carrying out these tests effectively, ASNT NDT Level IIIs for establishing techniques and preparing procedures. The material testing laboratory is equipped to facilitate inspections especially suitable for aerospace, nuclear, automobile and other critical components inspection with established and qualified procedures.

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2. Magnetic Particle Testing

Magnetic particle testing of rings

Magnetic particle testing (MT) also called as magnetic crack detection, Magnetic particle inspection (MPI) is one of the most effective method for finding both surface and subsurface or near surface flaws in ferrous materials at various stages of manufacturing. Trinity NDT's experienced teams have highly skilled professional inspectors, modern stationery , mobile, stationery, portable type of equipments suitable for high productivity inspections and field tests and NDT Level III experts to provide consultation, technique establishing, procedure preparation and related services.

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4. Radiography

Radiographic testing - Gamma ray camera

Radiography is carried out using X-rays or Gamma rays. Radiographic testing (RT) is one of the most reliable and widely used NDT methods in industries. Works on the principles of differential absorption of radiation, radiography is used to detect internal flaws in castings and welds. Additional advantage with Radiography is the availability of permanent record for future reference. Trinity NDT has experienced Level 1, 2, 3 professionals to carry out the tests and interpretations accurately.

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5. Visual Testing

Visual testing (VT) is one of the oldest and most widely used NDE methods to derive a multitude of useful information from a variety of material characteristics and properties. Visual examination is used in all stages of manufacturing and fabrication as a means of verifying conformance to standards and ensuring the quality levels are met and maintained in the final product. A great deal of specialized equipments, certified inspectors as per ASNT recommended practice SNT-TC-1A, technicians and NDT level III's exists for this purpose and can provide ASME 'U' stamp consultation on NDT.

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