| About Us |
SITAS as known to our clientele, we are the pioneers in the field of Non Destructive Testing . We stand apart with the distinction of being one of the few companies in India to usher in sophisticated techniques in NDT.
Right from the year 1979. Applying its art of perfecting High-Technology using the latest equipments.
SITAS Has kept India on the front line of International Technology having foreseen further inflow of Advances Technology into India. SITAS Has brought itself ahead of time by adopting State of the ART – NON DESTRUCTIVE TECHNIQUES.
The Founders distinguish SITAS as a team of highly qualified and motivated Inspection and NDT Engineers with over 30 years of professional experience in this technology.
To back up their efforts, there is SITAS’s dedicated and professional team of trained engineers to the requirements of American Society For Non-Destructive Testing (ASNT) And Atomic Energy Regulatory Board (AERB).
Our experience and activity profile covers vast and diverse clientele with their specific and at times demanding job requirements such as Thermal Power Stations, Plant Pipings, Cross Country Pipeline Refineries, Nuclear Power Plant, Penstocks, Hydro-Electric Power Station, Off-Shore Inspection, Horton Spheres, Defence And Aerospace Divisions, Foundries, Valve Manufacturers, Storage Tanks And Automobile Industries.
NCORPORATED in 1979, offering a full range of Non Destructive Testing Services from our Head Office in Bangalore, as well as Branch Offices in Hubli, Mangalore, Coimbatore, Bellary, Sangli, Shimoga and Egypt.
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| NDT |
| Non-Destructive Testing (NDT) is a non invasive method of testing to detect defects in materials using techniques that do not damage or destroy the items being tested. NDT is important because often the defects that we are looking for are not visible due to paint or some other coating may cover them. There might also be defects that are so small they cannot be seen with the naked eye or any other visual method of inspection. Therefore, inspection methods have been developed to detect the defects. NDT technicians and engineers possess the ability to handle the inspection activities and perform the suitable inspection methods to overcome related problems. There are several methods used by technicians to find defects before they caused problems. NDT are also used to detect variations in structure, minute changes in surface finish, the presence of cracks or other physical discontinuities, to measure the thickness of materials and coatings and to determine other characteristics of industrial products. |
Basic NDT Methods: |
1. Visual Testing (VT) – One of the most widely used Non-Destructive (NDT) methods for the detection of discontinuities before they cause major problems. It is easily carried out, inexpensive and usually doesn’t require special equipment. It uses the combination of human senses such as vision, hearing, touch and smell.
2. Radiography (RT) – One of the testing methods that uses X-ray and Gamma-ray for detecting internal imperfections, for measuring wall-thickness and for the detection of corrosion. An X-ray machine or radioactive isotope is used as a source of radiation. This variation in radiation produces an image on the detector that often shows internal features of the test object.
3. Magnetic Particle Testing – A quick and reliable technique for detection and location of cracks on or just below the surface of ferrous metals. A magnetic flux is applied to the specimen, either locally or overall, using a permanent magnet, electromagnet, flexible cables or hand-held prods. Magnetic particles distributed over the component will be attracted to areas of flux leakage and produce a visible indication.
4. Ultrasonic Testing – Is a Non-Destructive method in which beams of high-frequency sound waves are sent into the materials for the detection of subsurface flaws in the material. By measuring this sound a skilled ultrasonic testing operator can identify location and size of imperfection, particularly that wall thickness of the material.
5. Penetrant Testing (PT) – Aside from visual inspection this is the oldest and most widely used of all NDT methods. The method is used for crack detection, porosity, and other defects that break the surface of a material. It involves the application of a visible or fluorescent dye solution to the surface of a material and leaving it to rest for a pre-determined period of time. After some time the dye is washed off the surface and a developer is applied to the now clean surface and the defects where the dye has penetrated are made visible. |
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| Our Expertise |
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Cross country Pipelines |
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Foundries |
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Horton Spheres |
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Pressure Vessels and Storage Tanks |
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Nuclear power projects |
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Automobile Components |
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Hydro electric power projects |
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Thermal power stations |
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Shut Down / Annual Maintenance |
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Defence And Aerospace |
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Plant Piping |
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