Yanshan County Bo Yan Pipe Co., Ltd. is located in Yanshan County Industrial Development Zone. North of Beijing and Tianjin and Beijing-Shanghai railway to the east Bohai Sea, Tianjin Port, State Road across the county superior geographical conditions, abundant local resources, for my company's development has laid a good foundation. Best-selling products, and exported to South Korea, Vietnam, Singapore, Malaysia and other countries. I used to pursue "science and technology first, gaining the upper hand, quality, customer supreme, credit first" concept of operations, customer service and sincerely willing to domestic Meizhou carbon steel flanges, welcome customers to work together to create a better future. Plate flat welding flange easily obtained, create a simple, low cost, widely used; but less rigid, and therefore can not be used there is the chemical process piping systems and high supply and demand, flammable, explosive and high vacuum requirements, extremely hazardous occasions. Sealing surface with flat-screen and projection surface. Plate flat welding flange is the most common flange, carbon steel flanges, pressure has PN0.25, PN0.6, PN1.0, PN1.6, PN2.5. Welding form: welded flange plate is welded to the pipe going into the flange. Form sealing surface plate flat welding flange has a lower categories: convex surface (MFM) DN1300 ~ 3000 DN300 ~ 3000 DN400 ~ 2000 DN300 ~ 800 tongue and groove (TG) DN1300 ~ 3000 DN300 ~ 3000 DN300 ~ 3000 DN300 ~ 800 the whole plane (FF) DN300 ~ 3000 DN300 ~ 3000 DN300 ~ 3000 DN300 ~ 800 Yanshan County Bo Yan Pipe Co., Ltd. is located in Yanshan County Industrial Development Zone welded flange Knowledge (a) weld neck flange and overall Flanges are using butt welding, there is a long-necked, how neck flange and integral flange from the appearance of size and use the difference with it. From the looks of it, a large steel flanges, integral flange pipe ends thicker than welded flange pipe end, the overall flange ID except PN1.6MPa, DN450 above the rest are outside the same nominal diameter. Integral flange neck height high, the thickness of the wall thickness is relatively thick, the reference standard can be clearly seen from the application point of view, the overall flange is connected together with equipment such as flanges on the valve flange This flange and valve as a whole, are not connected by welding. Integral flange is used in the manufacture of the device in the pipeline design is almost not used. The weld neck flange is and valves, pumps and other devices supporting the use of time, is welded to its rear port size and the corresponding pipe / piece diameter, wall thickness consistent pipe can be directly welded connections. Stainless steel flange welded flange gasket is placed between the two flange sealing surface, tighten the nut, than the pressure reaches a certain value on the gasket surface deformation after, and fill the sealing surface uneven, the coupling not leak tight. Welded flange connection is a detachable connection. Welded flange connection can fully demonstrate good use of the role and value, can demonstrate its due role in the industry. Carbon steel flanges, Bo Yan Pipe Co., Luoyang steel flange provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) Hebei Cangzhou, elbow leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Bo rock pipe industry leadership with the staff warmly welcome all inquiries negotiations to create rich rock pipe industry a better future.