Trinity NDT

Visual testing (VT) & Welding inspection services

Weld Visual Testing Experts for VT of Boilers, Pressure Vessels and Pipeline for Corrosion

Visual testing of Welds – VT Inspection Services in Bangalore


Visual inspection is one of the most common and most powerful means of non-destructive testing. Visual testing requires adequate illumination of the test surface and proper eye-sight of the tester. To be most effective visual inspection does however, merit special attention because it requires training (knowledge of product and process, anticipated service conditions, acceptance criteria, record keeping, for example) and it has its own range of equipment and instrumentation. It is also a fact that all defects found by other NDT methods ultimately must be substantiated by visual inspection.

Visual testing – Types


VT can be classified as Direct visual testing, Remote visual testing and Translucent visual testing. The most common NDT methods MT and PT are indeed simply scientific ways of enhancing the indication to make it more visible. Often the equipment needed is simple for internal inspection, light lens systems such as bore scopes allow remote surfaces to be examined. More sophisticated devices of this nature using fibre optics permit the introduction of the device into very small access holes and channels. Most of these systems provide for the attachment of a camera to permit permanent recording.

Visual Testing Welds – Weld Inspection Services in Bangalore, India

Visual Testing of Weld Joints
Visual Testing of Weld Joints

Trinity NDT Visual testing Weld Inspection facility contains light meters, welding gauges, magnifiers, lenses, other measuring instruments and equipments for precise control of surface quality. Our NDT inspectors, engineers and technicians are qualified to NDT Level I, II as per written practice prepared according to written practice framed to the requirements of recommended practice SNT-TC-1A and in-house ASNT NDT Level IIIs for providing inspection and consulting services. Know more about updates on visual inspection of welds visit Ravi Trinity NDT Blog