Hebei Longyuan Pipeline Equipment Manufacturing is a comprehensive enterprise integrating research and development, production, and sales of gas fire extinguishing pipelines and high-pressure gas fire extinguishing fittings. Our products are applied in high-pressure pipeline connections for gas fire extinguishing projects in construction projects, telecommunications, communication, power stations, data centers, libraries, ships, high-rise buildings, oil, power, chemical industry, urban construction, heating, and light industry. The company is located in Yanshan, Cangzhou, Hebei, known as the "China Pipeline Equipment Manufacturing Base," with a superior geographical location, bordering the Beijing-Tianjin area to the north and facing the Huanghua Port to the east, offering excellent transportation convenience.

　　Our main products include fire gas extinguishing high-pressure pipe fittings (90° elbows, concave-convex welding flanges, tees, straight union nuts, reducers, unions, nozzles, male threads, female threads, plug, union, and external threads), as well as hot-dip galvanized seamless steel pipes. We offer high-pressure flanges with metal gaskets and hot-dip galvanized high-strength bolts. All materials are forged from 20# steel, ensuring no pores or sand holes, with both inner and outer surfaces electroplated and hot-dip galvanized. Available sizes include DN10, DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, and DN150, with DN10 to DN100 connected using tapered pipe threads; DN100 to DN150 connected with flanges. Connection standards include 55° sealing pipe threads (Rc), 60° sealing pipe threads (NPT), socket welding, and pipe outer diameter bevel welding. Our full range of pipe fittings meets the working pressure requirements of gas extinguishing systems (17.2Mpa) and can withstand test pressures up to 26Mpa. They are suitable for various gas extinguishing systems, including high-pressure carbon dioxide, IG541 mixed gas, heptafluoropropane, HFC-223, and CO2 gas extinguishing systems.

　　Our company prioritizes the protection of customer interests and firmly believes that strict product quality is the guarantee of business success. We consistently adhere to the principle of "quality is paramount, credibility supreme." We firmly believe that every product is an advertisement, and we win users' trust through competitive pricing, advanced technology and equipment, and comprehensive after-sales service. Our factory sincerely hopes to cooperate and communicate with both new and old customers. With the increasing demand for domestic markets, we will further expand our production and sales scale on the premise of improving quality and increasing product variety.

Partner with us through our superior products, impeccable reputation, reasonable prices, and comprehensive services. We sincerely look forward to your arrival and are eager to join hands with peers in the industry to create fine products and pursue development!