
DONG BU eng co., ltd is the maintenance specialist based on a responsible for high quality maintenance for all kinds of valves including Heat power plant, New and renewable energy facilities, Combined heat and power plant equipment, Petrochemical equipment and etc. We had started as one of department for Valve repair of DONG BU co., ltd on 1992 and now we have a good system which is available to meet any requirement by client based on a high quality equipment and relentless development of technology in order to meet the customer satisfaction with a speediness and correctness service.
The great advantage of our company is that we could proceed a perfect operation in the field with a various Portable Lapping Machine and make an improvement of time and cost dramatically. Especially, for the welding type of Gate, Globe valves, we could take a perfect repair with only lapping work on the Seat & Disc without cutting on the welding portion at site. And also, based on a long project experience of calibration of safety valves for Occupational Safety and Health Agency, Electrical Safety Corporation, Energy Management Corporation & Korea Gas Corporation, we are available to take a pressure test for Safety valves during operation.
For the "in situ test", we could adjust the Set Pressure with permissible tolerance (±1%). Therefore, you could not hold a production activity in order to take a calibration of safety valve, there is no need to stop the equipment and disassembly of valves because the safety valve is kept on-line working during the testing under operation.
DONG BU eng co., ltd is going to complete a company management through a steady R&D and acquisition of technology without complacency for all our effort in a while, we are asking that unwavering support and encouragement in the future and we promise we shall become a warm business that’s always be remembered as a partnership.
Thank you.