Views: 127 Author: Good Du Publish Time: 2023-03-23 Origin: Site
The EN 1092-1 Standard for a single series of flanges specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000.
This European Standard specifies the flange typesand their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure/ temperature ratings and approximate flange masses.
|DRAWN ||TYPE||FULL DESCRIPTION|
|EN 1092-1 TYPE 01 ||Plate Flange for Welding |
|EN 1092-1 TYPE 02||Loose Plate Flange with Weld-On Plate Collar|
|EN 1092-1 TYPE 02||Loose Plate Flange with Weld Ring Neck |
|EN 1092-1 TYPE 02||Loose Plate Flange with Pressed Collar with Long Neck |
|EN 1092-1 TYPE 02||Loose Plate Flange with Pressed Collar |
|EN 1092-1 TYPE 04||Loose Plate Flange with Weld-Neck Collar|
|EN 1092-1 TYPE 05||Blind Flange |
|EN 1092-1 TYPE 11||Weld-Neck Flange|
|EN 1092-1 TYPE 12||Hubbed Slip-On Flange for Welding|
|EN 1092-1 TYPE 13||Hubbed Threaded Flange|
|EN 1092-1 TYPE 21||Integral Flange|
|EN 1092-1 TYPE 32||Weld-On Collar Plate|
|EN 1092-1 TYPE 33||Lapped Pipe End|
|EN 1092-1 TYPE 34||Weld-Neck Collar|
|EN 1092-1 TYPE 35||Weld Ring Neck|
|EN 1092-1 TYPE 36||Pressed Collar with Long Neck|
|EN 1092-1 TYPE 37||Pressed Collar|
Flange Facing Types
Characteristics of European Standard Flanges
High impact resistance: Because the unique impact strength function has been significantly improved compared with other solid wall pipes, its ring stiffness is 1.3 times of that of the solid wall.
Long service life: Under rated service environment temperature and pressure, the pipe can be used for more than 50 years, and has the properties of UV and radiation protection.
Good corrosion resistance: Except a few hydrides, it can resist the corrosion of various chemical media. The flange has excellent acid, alkali and corrosion resistance, no rust, no corrosion and no electrochemical corrosion.
Good thermal insulation: because of the low thermal conductivity of the material, the thermal conductivity of 20 degrees Celsius is 0.21-0.24W/mk
It is generally made of cast steel, carbon steel, forged steel and stainless steel. Mainly suitable for water, steam, gas, gas and corrosive liquid etc.
Materials of EN 1092-1 Flange
The material groups contain materials of similar chemical/mechanical properties and corrosion resistance in order to facilitate an equivalent application of materials in a group depending on pressure, temperature and fluid.
1E0 unalloyed structural steels without guaranteed elevated temperature properties,application range- 10℃to+100℃;
1E1 unalloyed structural steels with elevated temperature properties;
3E0 unalloyed steels with guaranteed elevated temperature properties;
3E1 unalloyed steels with specified properties up to 400℃,upper yield strength>265N/mm²;
4E0 low alloyed steels with 0,3 % molybdenum;
5E0 low alloyed steels with 1% chromium and 0,5 % molybdenum;
6E0 low alloyed steels with 2 % chromium and1% molybdenum;
6E1 alloy steel with 5 % chromium and 0,5 % molybdenum.
7E0 low-temperature-tough fine-grain steel with minimum yield strength of 275 N/mm² at room temperature;
7E1 low-temperature-tough fine-grain steel with minimum yield strength of 355 N/mm² at room temperature;
7E2 low-temperature nickelalloyed steel (Nickel≤3%);
7E3 low temperature nickel alloyed steel (Nickel>3%).
8E0 yield strength 225 N/mm² min at room temperature;
8E2 yield strength 285 N/mm² min at room temperature;
8E3 yieldstrength 355 N/mm²min at room temperature.
9E0 high-temperature-tough ferritic steel with 12 % chromium,1% molybdenum and 0,5% vanadium
9E1 high-temperature-tough ferritic steel with 9% chromium,1% molybdenum and 0,25% vanadium and 0,1 % niobium.
10E1 LC-steel, nitrogen-alloyed;
11E0 standard carbon-content;
12E0 standard carbon-content,stabilized with Ti resp.Nb;
13E0 LC-steel with molybdenum;
Dimensions of PN 16 Flanges
Masses of PN 16 flanges