European Standard Flange

Flange, moreover acknowledged as flange flange or flange. the flange is the connecting thing amongst the shaft and the shaft, it is used for the relationship amongst the pipe ends; the flange on the device inlet and outlet is additionally used for the relationship amongst gadget, inclusive of the reducer flange. flange connection or flange joint refers to the detachable connection of flange, gasket and bolt as a set of combined sealing shape. the pipe flange refers again to the flange used for piping internal the pipeline device, and the inlet and outlet flanges of the gear while used at the equipment. there are holes on the flange, and bolts make the two flanges tightly linked.

The meaning of European standard flange is a kind of flange that meets the EU standard, generally refers to the EN 1092 standard, some people will ask? Is there only one EU standard? In fact, there is another European standard flange that is basically equivalent to ASME B16.5 is EN1759.

Large enterprises in the EU are currently in the stage of EN13445 pushing; Equipment exported to Europe and owned by large enterprises in the European Union are often required to be designed according to European standard flange EN13445. The standard for European flanges is sometimes EN 1092, and sometimes ASME B16.5 is written directly. However, neither the ASME BPVC standard nor the EN 13445 standard is actually very direct acceptance of other regional standards.

At present, only the standard of EN 1092-1 European flange is directly cited in standards such as EN13445-3/6/8/10; However, the EN13445-3 European standard flange and gasket matching table has a CLASS grade, and the steel flange of the European standard flange is also clear (only the text of EN 13445 does not specify the flange standard of the CLASS level). The EN 1759-1 standard is explicitly referenced in the application example of the CEN/TR 13445-101 standard.

If the flange standard given in the condition is ASME B16.5, please modify the flange standard to EN 1759-1. In this way, the standard pipe flange can avoid calculation, and normal AI/NOBO. is accepted. But EN 1759-1 also has disadvantages, because the standard is too old and has not been updated in 2004; Many of the newer material standards are not cited, but fortunately, its Appendix D can directly calculate the allowable pressure at the design temperature of the European standard material.

Applied to Multiple Industries