Customized Slip-on Flanges EN1092-1 is the British flange standard, 11 is the 11-type flange, B1 is the flange sealing surface model, DN50 is the nominal diameter, PN100 is the nominal pressure, and 6.15 is the flange S wall thickness. Flange, also known as flange flange or flange. Flanges are the interconnected parts between shafts and are used for the connection between pipe ends; they are also used as flanges on the inlet and outlet of equipment for the connection between two equipment, such as reducer flanges. Flange connection or flange joint refers to a detachable connection in which flanges, gaskets and bolts are connected to each other as a set of combined sealing structures. Pipe flange refers to the flange used for piping in the pipeline installation, and used on equipment refers to the inlet and outlet flanges of the equipment. There are holes on the flanges, and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. Flange is divided into threaded connection (thread connection) flange, welding flange and clip flange. Flanges are used in pairs, wire flanges can be used for low-pressure pipelines, and welded flanges can be used for pressures above four kilograms. Add a gasket between the two flanges and fasten them with bolts. Different pressure flanges have different thicknesses, and they use different bolts. When pumps and valves are connected to pipelines, parts of these equipment are also made into corresponding flange shapes, also known as flange connections. Any connection parts that are bolted at the periphery of two planes and closed at the same time are generally called "flanges", such as the connection of ventilation ducts, such parts can be called "flange parts". But this connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not easy to call the water pump "flange parts". Smaller ones, such as valves, can be called "flange parts". FAQ What is a PN40 flange? PN10, PN16, PN25 and PN40 specify pressure classes (in bar) and metric flange dimensions (e.g. bolt circle diameter, hole size, bolt size, etc.) metric measurements according to international flange standards such as ISO 7005-1 or DIN 2501 system. What does PN100 mean? PN is an acronym for "Pressure Nominal". PN is used as a prefix for flange pressure ratings. For example, flange PN16 is designed to operate on up to 16 levels. Normal scores: PN6, PN10, PN16, PN25, PN40, PN64, PN100.Customized Slip-on Flanges website:http://www.huashuoflange.com/slip-on-flanges/