In the fire fighting pipe network, the A type flange is different from the B type flange
In the hydraulic flange, there are A and B type, A type is monolithic, B type is the whole set, in the general flange, AB is the A and B series of nozzle diameter
Type A -- the form of attached flange (Flange, connection), that is, single flange (with O ring) and the other end is equipment.Type B -- the form of the connecting flange (Flange-type, coupling), that is, paired flanges (one with O rings).
A type flange and B type flange difference: A - attached flange form (Flange connection), that is, a single flange (with O ring), and the other end of the device. Type B -- the form of the connecting flange (Flange-type, coupling), that is, paired flanges (one with O rings).Flange (Flange), also called flange flange plate. The flange is the part that connects the pipe to the pipe and is connected to the end of the pipe. It is also used for the flange on the inlet and outlet of the equipment. It is used for the connection between the two devices, such as the reducer flange. Flange connection or flange connection, is defined by the flange, gasket and bolt connection between the three sealing structure of the detachable connection as a combination of group pipe flange refers to the pipeline installation of piping flange, used in equipment refers to equipment import and export flange. The flange is lined with bolts to secure the two flanges. Gaskets for gaskets between flanges. Sub threaded flange connection (threaded connection), flange welding flange and flange clamp.