What are metric tubes and British tubes? What's the difference between them? How do you choose flanges?
It should be the metric tube and the British tube, that is to say, the B series and the A series.According to the flange diameter of the steel pipe, the flange diameter should be chosen according to the outer diameter of the steel pipe.The national standard flanges sold on the market are generally B series, and the A series shall be noted.My company website has flange standard, and corresponding steel pipe size. If necessary, please: Hebei, Mengcun Hao elbow elbow pipe manufacturers, station search,
It's just a different unit. English is expressed in inches of steel pipe size metric is in meters that steel tube: Imperial size in inches, is an international pipe size series, commonly known as "big diameter series" metric tube: the unit is mm, is a series of pipe size is widely used for decades of domestic chemical industry and other industrial sectors the Department, commonly known as "small diameter series" inch thick wall series uses the pipe schedule number Sch.XX; while the wall thickness metric tube from 2mm, interval 0.5mm, 10mm interval is 1mm. The difference between metric and inch tube tube is the largest pipe diameter is not the same. Like DN50, metric tube diameter is 57, 60.1 inch diameter flange type connection structure: the pipe flanges and pipe is divided into the following six basic types: flat welding, butt welding, socket welding, loose screw flange and integral flange. The seal type flange sealing surface of a table, the entire plane, convex concave convex surface, groove, ring groove five.
