Technical specification for repair of high-voltage parts

These technical regulations have been developed to regulate the operation of high-voltage parts, increase the efficiency and safety of work, ensure continuous and stable production and the safety of life and property of workers.

High pressure movable elbows, plug valves, safety valves, single flow valves and other 2"3" high pressure parts.

1. Visual inspection before dismantling, checking the℃of corrosion on the joint surface of the seal of high pressure parts, the fault status of threads, threads, rotating parts, etc.;
2. External flaw detection, housing, uren, etc. (professional flaw detection tools and technology);
3. For disassembly, it is necessary to carry out in accordance with the operating instructions, use special tools for forced disassembly;
4. Internal flaw detection, careful inspection and analysis of valve core, internal cavity, rail with professional measuring instruments according to technical documents or drawings (such as smoothness, roundness, coaxiality, wall thickness, etc.);
5. Repair and reassembly, like new products, in full accordance with the operating instructions;
6. Carry out a pressure test to a standard that is the same as the new product.

1. High pressure lubricant injection equipment;
2. hydrostatic testing area;
3. Professional remote control for disassembly and assembly;
4. Professional tools for disassembly and assembly
5. A complete set of universal tools;
6. Full labor insurance required for repairs.