We provide repairs of acid resistant ball valves (>DN 100 up to DN 600) and repairs of safety valves along with setting of initial opening pressure in the presence of an inspector of the Office of Technical Inspection.
Repairs of ball valves are performed to obtain the nominal dimensions of the balls. In the case of large cracks, the ball (or the ball segment) is surfaced and then polished and chrome-plated.
Finally, it is subjected to the regrinding to size.
Valve sealing rings are usually made from scratch, and it is possible to cover the faying surface with stellite.
Our capabilities allow us to repair ball valves up to the diameter of DN 600