Flange (Flange) also known as the flange or flange. Tube and pipe flanges are so interconnected parts, connected to the pipe end. Flange connection or flange joint, is defined by flanges, gaskets and bolts of the three connected to each other as a group combined seal structure removable connection pipe flange means conduit means piping flanges, used in equipment means the outlet flange on the device. There are holes on the flange, so that the two flange bolts tightly connected. Between flange sealing gasket. Flange threaded connection points (wire tapping) flange and welding flange. Flange standard system 1, DIN standard 1) common pressure rating: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250 2) flange sealing surface:. Raised face DIN2526C face flange grooued acc DIN2512N tenon groove surface 2, ANSI standard 1) common pressure rating: CL150, CL300, CL600, CL900, CL1500 2) flange sealing surface: ANSI B 16.5 RF flanges face flange 3, JIS standard: not used 1) common pressure rating: 10K, 20K spare time, happy. . . . . . In rural areas, childhood family was poor not even Clank! Junior high school had never been seen to give ride to school, saying that bike beamed broken car, did not, no tile, no bells did not stand, I remember the day pedaling to school, not a village, the front wheel off! Out! Fortunately, I was quick, whiz, jumping up!