Advanced Non Destructive Testing Services

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ITE offers Helium Leak Testing (HLT) for wide varieties of components like Valves, Pressure Vessels, Heat Exchangers, Condensers, Tanks, Cryogenic Vessels, etc.

Leak testing is employed to detect leaks and determine the rate at which a fluid i.e. a liquid or gas will penetrate from inside a tight component or assembly to the outside or vice versa as a result of pressure differential between the two regions or of permeation of somewhat extended barrier. It has become conventional to use the term “leak” to refer to an actual discontinuity or passage through which a fluid flows or permeates. “Leakage” refers to the fluid that has flowed through a leak. “Leak rate” refers to the rate of fluid flow per unit of time under a given set of conditions, and is properly expressed in units of mss per unit of time. Standard leak rate refers to the rate of flow o atmospheric air under conditions in which inlet pressure is 0.1 Mpa ±5%; outlet pressure is leass tha 1 Kpa; temperature is 298K±5 and dew point is less than -298K.

The term “minimum detectable leak” refers to the smallest hole or discrete passage that can be detected and “minimum detectable leak rate” refers to the smallest detectable fluid flow rate. The amount of leakage required for a leak testing instrument to give a minimum detectable signal can be determined. This amount is generally used to denote the sensitivity of the instrument. Instrument sensitivity is independent of test conditions, but when an instrument is applied to a test, the sensitivity of the test depends on the existing conditions of pressure, temperature and fluid.

ITE offers these services at various places across India which include, Delhi, Uttar Pradesh (Ghaziabad, Sahibabad, Greater Noida, Noida, Lucknow, Agra, Kanpur, Mathura, Jewar, Sikandrabad, Meerut, Sonbhadra, Pata, Anpara, Allahabad, etc.), Madhya Pradesh, Punjab, Rajasthan, Haryana, Himachal Pradesh, Uttarakhand, Bihar, Chattisgarh, Gujarat, Maharashtra, Jammu Kashmir, West Bengal, etc.

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The Phased Array Technique of Ultrasonic Testing is a process wherein UT data are generated by controlled incremental variation of the ultrasonic beam angle in the azimuthal or lateral direction while scanning the object under examination. This process offers an advantage over processes using conventional search units with fixed beam angles because it acquires considerably more information about thereflecting object by using more aspect angles in direct impingement. Each phased array search unit consists of a series of individually wired transducer elements on a wedge that are activated separately using a pre-selectable time delay pattern.Flaw sizing is normally performed by measuring the vertical extent (in the case of cracks) or the cross-sectional distance (in the case of volumetric/planar flaws) at the 6 dB levels once the flaw has been isolated and the imagenormalized. Tandem sizing and analysis uses techniques similar to pulse-echo but provides images that are easier to interpret since specular reflection is used for defects oriented perpendicular to the surface. For cracks and planardefects, the result should be verified using crack-tip-diffraction signals from the upper and lower ends of the flaw, since the phased array approach with tomographic reconstruction is most sensitive to flaw tip indications and isable to give a clear reconstruction image of these refraction phenomena. As with other techniques, the phased array process assumes isotropic and homogeneous material whose acoustic velocity is constant and accurately known.Sectorial scans (S-scans) with phased array provides a fan-like series of beam angles from a single emission point that can cover part or all of a weld, depending on search unit size, joint geometry, and section thickness. Such a series of beam angles can demonstrate good detectability of side-drilled holes because they are omni-directional reflectors. This is not necessarily the case for planar reflectors (e.g., lack of fusion and cracks) when utilizing linescanning techniques where the beam could be misoriented to the point they cannot be detected. This is particularly true for thicker sections when using single line scanning techniques.ITE has expert manpower with years of expertise in performing PAUT of various components including Welding, Castings, Pipes, Tubes, Plates, etc.As a recent addition to the portfolio of our services we have started performing Phased Arrau Ultrasonic Testing of Boiler Tubes as well with diameter as low as .75 inch to 4.5 inches. This is done used a specialised attachment called Cobra scanner. Cobra scanner is used with Olympus Omniscan MX2 with other necessary accessories to perform reliable scanning of Boiler Tubes welded joints. With Cobra Scanner, we have been able to remove various challenges and limitations faced by customers in the power sector. One of them being reduced dependence of Radiography Testing, since PAUT using cobra scanner give better and faster result that Radiography Testing.

ITE offers these Non Destructive Testing services (NDT) at various places across India which include, Delhi, Uttar Pradesh (Ghaziabad, Sahibabad, Greater Noida, Noida, Lucknow, Agra, Kanpur, Mathura, Jewar, Sikandrabad, Meerut, Sonbhadra, Pata, Anpara, Allahabad, etc.), Madhya Pradesh, Punjab, Rajasthan, Haryana, Himachal Pradesh, Uttarakhand, Bihar, Chattisgarh, Gujarat, Maharashtra, Jammu Kashmir, West Bengal, Nepal, Sikkim, Arunachal Pradesh, Assam, etc.

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Diffraction is a common ultrasonic phenomenon and occurs under much broader conditions than just longitudinal-longitudinal diffraction as used in typical TOFD examinations. This interpretation guide is primarily aimed at longitudinal-longitudinal diffraction TOFD setups using separated transducers on either side of the weld on a plate, pipe, or curved vessel. Other possibilities include:
·        shear-shear diffraction
·         longitudinal-shear diffraction
·        single transducer diffraction (called "back diffraction" or the "tip-echo method
·        twin transducer TOFD with both transducers on the same side of the flawed weld complex inspections, e.g., nozzles
 
Although time-of-flight diffraction can be used for a variety of applications, it is primarily used for weld testing of circumferential and axial welded joints, also known as perpendicular TOFD scanning. Since the time of introduction of TOFD, the use of this non destructive testing technique has steadily increased. Manual execution is possible with TOFD, however, it is most commonly performed in combination with a recording device like an encoder or/and a scanner. To achieve certain code compliance, TOFD is sometimes coupled with pulse-echo or phased array techniques in order to cover the root and cap regions of the weld.
ITE offers these Non Destructive Testing services (NDT) at various places across India which include, Delhi, Uttar Pradesh (Ghaziabad, Sahibabad, Greater Noida, Noida, Lucknow, Agra, Kanpur, Mathura, Jewar, Sikandrabad, Meerut, Sonbhadra, Pata, Anpara, Allahabad, etc.), Madhya Pradesh, Punjab, Rajasthan, Haryana, Himachal Pradesh, Uttarakhand, Bihar, Chattisgarh, Gujarat, Maharashtra, Jammu Kashmir, West Bengal, Nepal, Sikkim, Arunachal Pradesh, Assam, etc.

Locations serviced include :- Shrinagar, Jammu, Kargil, Shimla, Kullu, Manali, Ludhiana, Bathinda, Jalandhar, Amritsar, Chandigarh, Ropar, Talwandi, Jhajjar, Hissar, Gurgaon, Manesar, Panipat, Sonipat, Faridabad, Palwal, Ballabhgarh, Bahadurgarh, Delhi, Jaipur, Bikaner, Jodhpur, Alwar, Chittorgarh, Kota, Noida, Ghaziabad, Greater Noida, Aligarh, Kanpur, Allahabad, Agra, Gorakhpur, Meerut, Mathura, Varanasi, Sikkim, Arunachal Pradesh, Jhansi, Gwalior, Bina, Bhopal,Indore, Mumbai, Pune, Nagpur, Vadodara, Ahmedabad, Goa, etc.

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Approx. Rs 20,000 / DayGet Latest Price

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Fugitive Emission Testing is done on valves as per ISO 15848 Part 1 and Part 2. Part 1 is for Type Testing of valves while part 2 is for Production Testing of valves. Helium gas is used as the tracer gas. In the type test, the valves is tested for its endurance, tightness and temperature capabilities.

Personnel or operator performing the FET are ASNT SNT TC 1A certified Level II in Leak Testing

ITE offers these Non Destructive Testing services (NDT) at various places across India which include, Delhi, Uttar Pradesh (Ghaziabad, Sahibabad, Greater Noida, Noida, Lucknow, Agra, Kanpur, Mathura, Jewar, Sikandrabad, Meerut, Sonbhadra, Pata, Anpara, Allahabad, etc.), Madhya Pradesh, Punjab, Rajasthan, Haryana, Himachal Pradesh, Uttarakhand, Bihar, Chattisgarh, Gujarat, Maharashtra, Jammu Kashmir, West Bengal, Nepal, Sikkim, Arunachal Pradesh, Assam, etc.

Locations serviced include :- Shrinagar, Jammu, Kargil, Shimla, Kullu, Manali, Ludhiana, Bathinda, Jalandhar, Amritsar, Chandigarh, Ropar, Talwandi, Jhajjar, Hissar, Gurgaon, Manesar, Panipat, Sonipat, Faridabad, Palwal, Ballabhgarh, Bahadurgarh, Delhi, Jaipur, Bikaner, Jodhpur, Alwar, Chittorgarh, Kota, Noida, Ghaziabad, Greater Noida, Aligarh, Kanpur, Allahabad, Agra, Gorakhpur, Meerut, Mathura, Varanasi, Sikkim, Arunachal Pradesh, Jhansi, Gwalior, Bina, Bhopal,Indore, Mumbai, Pune, Nagpur, Vadodara, Ahmedabad, Goa, etc.

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EDDY CURRENT INSPECTION OR EDDY CURRENT TESTING (ECT) is one of the Advanced Non Destructive Testing (NDT) methods which is based on the principles of electromagnetic induction and is used to identify or differentiate among a wide variety of physical, structural, and metallurgical conditions in electrically conductive ferromagnetic and non ferromagnetic metals and metal parts. Eddy current inspection can be used to:

• Measure or identify such conditions and properties as electrical conductivity, magnetic permeability, grain size, heat treatment condition, hardness, and physical dimensions

• Detect seams, laps, cracks, voids, and inclusions

• Sort dissimilar metals and detect differences in their composition, microstructure, and other properties

• Measure the thickness of a nonconductive coating on a conductive metal, or the thickness of a nonmagnetic metal coating on a magnetic metal

Because eddy currents are created using an electromagnetic induction technique, the inspection method does not require direct electrical contact with the part being inspected. The eddy current method is adaptable to high-speed inspection and because it is nondestructive, can be used to inspect an entire production output if desired. The method is based on indirect measurement, and the correlation between the instrument readings and the structural characteristics and serviceability of the parts being inspected must be carefully and repeatedly established

At ITE, we use Olympus MS 5800 for Eddy Current Testing of Tubes in various components like Heat Exchangers, Reactors, Condensers, etc. All those tubes which are non ferromagnetic in nature like made from the alloys of Aluminium, Copper, Austenitic Stainless Steel, Titanium, etc. are tested. We have a formidable customer base for ECT like IOCL, NFL, KSFL, NPL, IFFCO, etc. to name a few.

ITE offers these Non Destructive Testing services (NDT) at various places across India which include, Delhi, Uttar Pradesh (Ghaziabad, Sahibabad, Greater Noida, Noida, Lucknow, Agra, Kanpur, Mathura, Jewar, Sikandrabad, Meerut, Sonbhadra, Pata, Anpara, Allahabad, moradabad, gajraula, hapur, etc.), Madhya Pradesh, Punjab, Rajasthan, Haryana, Himachal Pradesh, Uttarakhand, Bihar, Chattisgarh, Gujarat, Maharashtra, Jammu Kashmir, West Bengal, Nepal, Sikkim, Arunachal Pradesh, Assam, etc.

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