DLKY Pipeline Co., Ltd. was established in 1998. It is a professional manufacturer in China's thermal pipeline industry with international standards in research and development and manufacture of prefabricated direct-buried hot-water polyurethane thermal insulation pipes, prefabricated direct-buried steel sleeve steel steam-insulated pipes, and metal bellows expansion joints. Business. The registered capital of the company is RMB 102 million. The company has 180 employees and 61 professional and technical personnel. The company has the ability to produce 1,500 kilometers of water pipes and 500 kilometers of steam pipes with a total of 2,000 kilometers of perfect quality insulation pipes and fittings. The product has significant energy saving effects, and its production equipment and technology have a leading position in the domestic insulation pipe industry.
The company has international and domestic advanced complete production equipment: 8 vacuum sizing (German advanced technology) PE outer tube extrusion production lines, which can extrude DN100mm-ФDN1700mm PE outer tube, and complete the corona and stress release process online; 3 Automatic (equipped with high-pressure foaming equipment imported from Germany) thermal insulation pipe foaming production line; 2 sets of thermal insulation pipe foam preheating systems; 2 prefabricated thermal insulation pipe foaming production lines; 7 sets of full-spec pipe fittings, outer tube mirrors, mirror fusion welding machines ; 8 sets of imported PE PE fillet hot-melt welding torch pipe production equipment; 2 steel pipe shot blasting production lines with a maximum pipe diameter of DN1700; 2 heat-insulating pipe positioning bracket injection molding machines; 2 extrusion plate production lines and electric heating sleeve production lines ; 7 sets of on-site mechanical infusion and heat preservation operation vehicles equipped with foaming equipment imported from the United States; 2 steel sleeve steel steam insulation pipes, glass fiber reinforced plastic anti-corrosion machinery winding production lines; a full set of advanced equipment for metal ripple compensator production equipment, etc.
The company's R & D center has focused on the establishment, development and investment of equipment and technology for many years. Developed successively: steel sleeve steel steam pipe mechanical fiber winding anti-corrosion equipment, large-diameter high-density polyethylene outer protective pipe screen mesh plate forming mold, high-density polyethylene outer protective pipe air sealer, prefabricated buried thermal insulation pipe PE outer protective pipe Corona polarization treatment of new internal electrodes, high-density polyethylene thermal insulation pipe stress relief equipment, international-level field joint insulation construction combined unit equipment, etc. Since 2006, our company has complied with European standards "EN253: 2003, EN448: 2003 "and the customer's design requirements firstly developed the DN1000 ～ DN1800 large-diameter high-density polyethylene outer protective pipe in China, focusing on the research and development of large-diameter production processes, filling the country's production process of large-diameter polyurethane prefabricated direct-buried thermal insulation pipes of DN800 and above Multiple blanks. The first domestically produced DN1200 large-diameter polyurethane prefabricated direct-buried thermal insulation pipes have been put into use in many large domestic projects and World Bank loan projects, and have received unanimous praise. Our company's large-caliber prefabricated insulation pipes were rated as “Specialized and New” products by the province in 2010; in the promotion of 40 key energy-saving emission reduction technologies jointly organized by the four ministries and commissions of Liaoning Province in 2014, our company's DN800-DN1800 large-caliber The key technologies of prefabricated direct buried insulation pipes were included in the list and won commendations; in 2014, our company's technology center was rated as Dalian Municipal Enterprise Technology Center; from 2013 to 2014, the production design process of large-diameter insulation pipes has won a number of utility models Patents and invention patents.
The company is the participant of the latest edition of GB / T29047-2012 National Standards and Test Standards for Precast Direct Buried Thermal Insulation Pipes and Fittings implemented on September 1, 2012, and has passed the international IS09001: 2008 quality management system certification, IS014001: 2004 environment Management system certification and GB28001-2001 occupational health and safety management system certification; it is the first batch of production enterprises in the industry to obtain the "Special Equipment Manufacturing License (Pressure Pipeline Components)"; in 2010, it was awarded the "Product Adopting International Standards" issued by the State Technical Supervision Bureau Certificate of Conformity