Visual Inspection is one of Lion Inspection Services most common analytical methods. VT involves observing a component with the naked eye to evaluate the presence of surface discontinuities. VT can be supported with optical instruments such as magnifying glasses, boroscopes, mirrors, and other computer equipment for remote viewing. If a component can be viewed, visual testing is the first method of testing in an NDT examination.
This service covers the dimensional measurements of tool joint OD, ID, Box Shoulder Width, Tong Space, Measurement of Box Swell, Counterbore Depth, Pin Lead, Bevel Diameter, Box Seal width and Shoulder Flatness.
Visual Dimensional Inspection of rotary shouldered connections includes: Full Dimensional Inspection, Profile of Threads, Checking Standoffs, lead and Taper.