On April 18, the SPC Supplier Work Committee convened the “2015 China Petrochemical Industry Qualified Suppliers of Dry Equipment and Its Leading Products†review meeting. The assessment of the drying equipment supplier is the first pilot of the supplier's service board qualified service supplier review. The company is recommended by industry associations and professional groups, recommended by industry experts, recommended by key companies in the oil and chemical industry, and self-recommendation and work by the company. The staff of the committee invites volunteers to fill in the application materials. 67 enterprises applied online. According to the completeness of the materials submitted by enterprises, as well as the recommendations of the drying equipment industry associations and professional groups, 20 final audited enterprises were finalized, covering more than 90% of outstanding enterprises selected by the drying equipment industry associations and professional groups, and annual sales. The total income is close to 3 billion yuan, accounting for more than 80% of the demand for drying equipment in the petroleum and chemical industries in the country. The review will invite the supplier's working committee, the Chemical Engineering Committee of the China Chemical Industry Society, the Shenyang Chemical Industry Research Institute of Shenyang Chemical Industry, China Petrochemical Engineering Construction Co., Ltd., Shaanxi Coal Chemical Technology Research Institute, Hualu Hengsheng Group Co., Ltd., and Wanhua Chemical. Group companies such as joint stock companies and enterprise experts serve as members of the Jury Committee. In accordance with the principle of openness, fairness and impartiality, the review committee reviewed the first batch of 14 qualified suppliers of drying equipment and their leading products. At present, the review results have been publicized on the National Petroleum and Chemical Network.
Across the pond, you will find the Deutsches Institute fur Normung (DIN) flange specification, consisting of a variety of European styles which have been unified into one code for the purpose of commonality. Designation as a DIN Flange by the German Institute of Standardization assures the user of design quality the way an ASME flange would here in America. Although much less common than ANSI/ASME steel flanges in the United States, many of our international customers request flanges to these specifications for a variety of applications such as imported steel vessels, cargo ships, and other infrastructure which may consist of metric pipes/valves and European designed equipment.
The subset flanges under the DIN standard consist of the same style of flanges in the United States, including the most commonly used slip on flanges, weld neck, flanges, and blind flanges. Adapter flanges can be custom made to end user requirements for the mating of American flanges to international ones, however we find it is a much more common and easy solution to provide DIN flanges to mate to existing equipment.
The most common metric type flanges fall under the following categories:
DIN 2501 through 2503 for flat ring flanges
DIN 2512 through 2519 for alternate face flanges
DIN 2627 through 2633 for weld neck flanges
DIN 2641 through 2642 for lap joint flanges
DIN 2565 through 2569 for threaded/companion flanges
DIN 2527 for blind flanges
Din Wn Flange,Din Pn Wn Flange,Welding Neck Flange,Din Welding Neck Flange Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.com