Yanshan County Bo Yan Pipe Co., Ltd. Main products: stainless steel, alloy steel, carbon steel high school low pressure bend, bend, three, four, flanges, reducers, tube cap stainless steel pipe fittings, stainless steel top closure Quality concentric reducer should be consistent with existing national standards, reducers size tolerances shall comply with Table 4.2.2-3 of. Diameter pipe exterior should not have cracks, heavy leather wall thickness greater than the thickness of the large diameter end of the pipe section, stainless steel concentric reducer roundness should not exceed 1% of the respective ends of the outer diameter, and the allowable deviation of ± 3mm; concentric reducer centerline ends should overlap, their eccentricity tolerance of ± 5mm. 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" business concepts stainless steel tube base, sincerely willing to domestic and foreign users, welcome customers to work together to create a better future. Stainless steel flanges mainly to ensure that tube and pipe interconnected parts. By structure type Hebei professional production of stainless steel pipe fittings, we have integral flange, loose flanges and threaded flange. Common integral flange having welded flange and welded flange. Flange tube fittings with finger flange (flange or disk access) is. It may be cast from, but also by screwing or welding composition. Flange connection defined by a pair of flanges, a gasket and a number of bolts and nuts. Spacer placed between the two flange sealing surface, tighten the nut factory direct stainless steel pipe fittings, gasket over the surface deformation pressure reaches a certain value, and fill the sealing surface uneven, the coupling does not leak tight. Flange connection is a detachable connection. There are perforations on the flange can be worn bolts, so that the two flanges tightly connected between the flange gaskets for sealing. According to the connected components can be divided into the container flange and pipe flange. Stainless steel tube base, stainless steel pipe, Bo Yan Pipe By Bo Yan Pipe Co., Ltd. Yanshan County. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) strong, credible, Cangzhou in Hebei elbow industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Bo rock pipe industry into the brilliant and you work for a better future!