Cangzhou Youlong Pipe Fitting Manufacturing Co., LTD
Most countries in Europe mainly install flanges according to standard DIN EN 1092-1 (forged stainless or steel flanges). Similar to the ASME flange standard, the EN 1092-1 standard has the basic flange forms, such as weld neck flange, Blind Flange, lapped flange, Threaded Flange (thread ISO7-1 instead of NPT), weld on collar, pressed collars, and adapter flange such as flange coupling GD press fittings. The different forms of flanges within the EN 1092-1 (European Norm/Euronorm) is indicated within the flange name through the type.
| Design | According to EN type | According to DIN |
|---|---|---|
| Weld-neck flange | Type 11 | DIN 2627 – DIN 2638 |
| Blind flange | Type 05 | DIN 2527 |
| Threaded flange | Type 12 | DIN 2558, DIN 2565 – DIN 2569 |
| Flat flange | Type 01 | DIN 2573, DIN 2576 |
| Lapped flange | Type 02 and Type 04 | DIN 2641, DIN 2642, DIN 2655, DIN 2656 |
Similar to ASME flanges, EN1092-1 steel and stainless flanges, have several different versions of raised or none raised faces. According to the European form the seals are indicated by different form:
| Form: types of contact faces | DIN EN 1092-1 |
|---|---|
| Without raised face | Form A |
| Raised face (Rz = 160 mechanical turned) | Form B1 |
| Raised race (Rz = 40 mechanical turned) | Form B1 |
| Raised face (Rz = 16 mechanical turned) | Form B2 |
| Tongue according to DIN2512 | Form C |
| Groove according to DIN 2512 | Form D |
| Male according to DIN 2513 | Form E |
| Female according to DIN 2513 | Form F |
| Female according to DIN 2514 | Form G |
| Male according to DIN 2514 | Form H |
Flanges in the rest of the world are manufactured according to the ISO standards for materials, pressure ratings, etc. to which local standards including DIN, BS, and others, have been aligned.
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