Liquid penetrate inspection (PT) is one of the most widely used nondestructive evaluation (NDT) methods. Its popularity can be attributed to two main factors, its relative ease of use and its flexibility.All types of Fluorescent Penetrates and Visible Penetrates are used to inspect materials include the following; Metals (aluminium, copper, steel, titanium, etc.), Glass, Ceramic materials, Rubber and Plastics.

As a result of welding processes used to join metals together, the base materials near the weldment, the deposited weld metal and, in particular, the heat affected zones transform through various metallurgical phases. Depending upon the chemistry of the metals in these areas, hardening occurs in various degrees, dependent mainly upon carbon content. Again, this is particularly true in the heat affected zone (HAZ) adjacent to the weld metal deposit where the highest stresses due to melting and solidification result. PWHT, is designed to relieve a proportion of these imposed stresses by reducing the hardness and increasing ductility, thus reducing danger of cracking in the vessel weldments.

Quick, Reliable, Durable & Proven Design. It is virtually foolproof and indestructible. Seal off one end of the suspect tube(s) with either a rubber tube plug or the T-Handle with an attached nozzle; then insert the Vacuum Leak Detector into tube to be tested and depress the trigger, a loss of vacuum indicates a leaking tube. It has a filter system to prevent debris inside the tube from clogging the tool.

Visual testing is used for the detection of surface flaws and discontinuities. The effectiveness of the technique can be enhanced through the aid of such tools as mirrors, magnifiers, fiberscopes, etc. Quantification of indications can be augmented through the use of tools such as depth gauges, templates, displacement gauges, etc. AITIS team for Visual Inspectors are Certified and Experienced as well. We have a number of Certified Visual Inspector from ASNT, API, CSWIP / AWS, NACE and BGAS.

Visual testing is used for the detection of surface flaws and discontinuities. The effectiveness of the technique can be enhanced through the aid of such tools as mirrors, magnifiers, fiberscopes, etc. Quantification of indications can be augmented through the use of tools such as depth gauges, templates, displacement gauges, etc. AITIS team for Visual Inspectors are Certified and Experienced as well. We have a number of Certified Visual Inspector from ASNT, API, CSWIP / AWS, NACE and BGAS.