Reconstruction of the candle D-4 started in October, 2012.
The course of work, history:
- Preparation and approval of welding techniques;
- Disassembling of industrial pipelines;
- Disassembling and removal of the head of the candle D-4;
- Preparation and assembling of industrial pipelines according to project;
- Laying on and welding of the head of the candle D-4 according to the special description of welding procedures;
- Connection of industrial pipelines;
- Performance of non-destructive control;
- performance of hydraulic tests and transfer of test results;
- Water blowing;
- Preparation of pipelines for operation, repacking of flanged connections.