Inspection Services

Service Details:

Welding inspection involves inspection of various aspects of a weld. Inspection can be carried out before, during and after the completion of the weld. Such inspections include joint preparation, procedure verification, settings, methods used, inter-pass inspection, depth of penetration, inter-pass and base metal fusion and so on.

Welding inspection can be carried out visually, as well as using NDE techniques of RT and UT. Welding inspection is usually carried out based on procedures and methods as per the requirements of various standards such as ISO, ASME and AWS.

Service Details:

Remote Visual Inspection (RVI), involves visual inspection of the components. No special tests are carried out, as the inspection consists of observation by the naked eye. Certain accessories can be used for carrying out inspection, such as flashlights, mirrors, lenses, magnifying glasses, etc.

RVI includes use of remote visual aids such as borescopes and videoscopes. These scopes consist of probes at the ends of optical or digital cables. The probes are inserted into areas which are otherwise inaccessible. They can be scanned and articulated as per requirements. The images seen by the probes are replicated on screens that are held by the operator, which enables the operator to remotely inspect all sorts of components. Additionally facilities for capturing images and recording videos are also available. In some cases, it is possible to livestream the borescope images via Bluetooth or WiFi connectivity to remote locations such as offices.

Service Details:

Internal Rotary Inspection System (IRIS) is a special type of Ultrasonic Testing technique used for inspection of pipes and tubes. Water is used as a couplant. The tube to be inspected is flooded with water. A transducer generates an electronic pulse parallel to the axis of the tube being tested. A rotating mirror directs the ultrasonic wave into the tube wall. The mirror is powered by a water-driven turbine, with the water being pumped into the tube for flooding.

Parts of the waves are reflected by the ID and OD. Knowing the velocity of ultrasonic waves in the material of the tubes, the wall thickness can be calculated by determining the time required for both waves to be reflected from the corresponding walls. As the probe is pulled, the rotating mirror develops a helical scan path. IRIS can be used for boiler, shell-and-tube and fin-fan heat exchangers.