Large diameter flange

One: technology and technological ensurance

The production and inspection technological process of our company is arranged according to API 5L and GB/T9711, and we have carried technological amelioration according to producing standard of higher-grade gas transmitting pipeline. We have the ability of produce high quality transmitting pipeline from the respect of manufacture and inspection equipment. Before every batch produce, we always carry out strictly technological test and judgment, and according to the result to determine the best technological parameters of pipe produce, ensure to produce high quality product. Then we distribute the technological process which draws up by the company to every post of produce and inspection to guide production and inspection. In the process of steel pipe produce, we strictly examine and supervise the executive state of technology discipline, take correction and prevention measure to make sure some problems can be find. We check this according to quality system of our company to ensure strictly carry out technological discipline and ensure the quality of our product.

Two: inspection ensurance

Our company establishes professional inspection organization which takes charge of the quality inspection of all process from raw material into the company to the final product store up. The steel pipe produced by our company has taken 100% inspection of inside seam, 100% X-ray inspection (there aren't blind area in pipe end ) , 100% hydrostatic test (the hydrostatic test use seal and minimum blind area ) 100% visual inspection (include inside and outside weld seam and raw material.) The laboratory of our company equipped with advanced inspection equipment such as imported Brook direct reading spectrum instrument and digital tensile testing machine, which can take precise chemical analysis and mechanical property to product, and online-ultrasonic test equipment and X-ray inspection equipment can take 100% non-destructive test to the product. Auto hydrostatic record instrument can ensure to test the pressure and stay pressure according to specified pressure and time of every pipe. Each inspection process has a responding engineer to supply guide and technological consultation. All the inspecting personnel has taken professional training. The technician of non-destructive test all has the profession certificate. From the personnel to equipment, we can guarantee carry out strictly quality inspection to product so as to ensure the quality of product comply with the standard.

Three: quality assurance system

Our company carries out the quality management in all company, and establishes quality system according to GB/T19001-2016 and API Q1 standard of American Petroleum Institute. In our company, everybody from general manager, responsibility of every department to every workers are all in the system. In the quality manual of company, good inspection , management responsibility, quality system, purchasing, control of process, and testing which total of confirmed by rules. We ensure every quality active comply with standard program, every work spot according to work standard. Take the policy of combine prevention as main and inspection as supplitive in quality management. Not only take prevent measure seriously so as to prevent problem happening but also react in time and correct in case something happened. The company arranges the personnel training on plan.For the person of different quality actives, according to the teaching background, training and assessment of them giving certificate as issued qualification. Our company has passed through GB/ T19001-2016 quality system certification, and ensure conducted effectively, ensure product quality comply with standard. In the process of inspection, strictly record, carry out the tracing policy, made all the inspection record has good tracing function in all the production process.