METHOD OF MEASURING DIAMETER OF BALL PLUG "IGR" OF MAIN PIPELINE VALVE Russian patent published in 2025 - IPC G01B5/08 

FIELD: measuring equipment.

SUBSTANCE: method of measuring the diameter of a ball plug during the repair of a main pipeline valve comprises the steps at which a calliper is brought into contact with a defect-free section by the jaws and a rod, the chord and the segment height are measured by the jaws projection and the ball diameter is determined therefrom, wherein circle with appropriate radius is plotted by calliper and jaws with measuring edge surfaces on defect-free section, the same is used to measure circle diameter being chord of ball central cross-section circle to define ball plug diameter.

EFFECT: increasing the technical efficiency of repairing a ball valve regardless of its design, with only the nominal parameter (diameter DN) known.

1 cl, 1 dwg