Weld Neck Flange Type 11/B1 EN1092-1 PN40

TECHNICAL DESCRIPTION

Neck (skirt) flanges according to standard EN1092-1 / type 11 / B1 are pipeline elements with a wide size range, which are widely used in the construction of steel pipelines and pipe segments (spools) used in industry, industry and ship repair.

We stock EN1092-1 type 11 / B1 sealing surface steel flanges, but we also have the necessary machining equipment, which allows us to offer flanges with sealing surfaces.

• sealing surface type A, B2, C, D, E, F
• non-standard sealing surfaces on request
• profile grooves for metal sealing rings (segments) type RTJ
• flanges made on request by the customer, and others.

SUPPORTED MATERIALS IN STOCK:

• Carbon steel

P250GH (1.0460) / EN 10222-2

Dimensions:DN 10 – 600

Description

The Weld Neck Flange Type 11/B1, compliant with EN1092-1 PN40, is engineered for high-pressure industrial piping systems requiring superior strength and leak-proof performance. Its weld neck design ensures a smooth transition from flange to pipe, reducing stress concentrations and enhancing durability under extreme conditions. This flange is ideal for applications in oil and gas, chemical processing, and power generation, where reliability and adherence to international standards are paramount.Manufactured from high-quality materials, this PN40 rated flange withstands pressures up to 40 bar, making it suitable for demanding environments. Key features include:Precision machining for perfect alignment and secure connectionsExcellent resistance to corrosion and thermal cyclingFull compliance with EN1092-1 specifications for interoperabilityEasy to install and maintain, this weld neck flange ensures long-term operational safety and efficiency. It is available in various sizes and material grades to meet specific project requirements, providing a robust solution for critical infrastructure projects worldwide.

Additional information

Materials

No. DETAILS MATERIALS STANDARD
1 FLANGE SHIEKOV (YUBKOV) 11/B1 EN1092-1 PN 40 steel P250GH (1.0460) EN 10222-2
other steels - on request
P280GH / 1.0426 EN 10222-2
16Mo3; 15Mo3 / 1.5415 EN 10222-2
other stainless steels - on request
AISI 304L (X2CrNiMo17-12-2) / 1.4404 EN 10222-5
AISI 316L (X2CrNiMo17-12-2) / 1.4404 EN 10222-5
AISI 321 (X6CrNiTi18-10) / 1.4541 EN 10222-5
AISI 316Ti (X6CrNiMoTi17-12-2) / 1.4571 EN 10222-5

Features

SPECIFICATION
Standard EN 1092-1 11/B1
Pressure PN 40

 

Dimensions
DN pipe Ø flange dimensions fastener dimensions
A D K L H2 C2 N1 H3 R s Sp d1 f1 kg n M
10 13.5* 90 60 14 35 16 25 6 4 2 2 40 2 0.69 4 M12
17.2 28 0.68
15 20.0* 95 65 14 38 16 30 6 4 2 2 45 2 0.78 4 M12
21.3 32 0.77
20 25.0* 105 75 14 40 18 38 6 4 2.3 2.3 58 2 1.10 4 M12
26.9 40 1.09
25 30.0* 115 85 14 40 18 42 6 4 2.6 2.6 68 2 1.40 4 M12
33.7 46 1.30
32 38.0* 140 100 18 42 18 52 6 6 2.6 2.6 78 2 1.99 4 M16
42.4 56 1.91
40 44.5* 150 110 18 45 18 60 7 6 2.6 2.6 88 3 2.20 4 M16
48.3 64 2.15
50 57.0* 165 125 18 48 20 72 8 6 2.9 2.9 102 3 2.90 4 M16
60.3 75 2.85
65 76.1 185 145 18 52 22 90 10 6 2.9 2.9 122 3 3.68 8 M16
80 88.9 200 160 18 58 24 105 12 8 3.2 3.2 138 3 4.78 8 M16
100 108.0* 235 190 22 65 24 128 12 8 3.6 3.6 162 3 6.56 8 M20
114.3 134 6.46
125 133.0* 270 220 26 68 26 155 12 8 4 4 188 3 9.40 8 M24
139.7 162 8.86
150 159.0* 300 250 26 75 28 182 12 10 4.5 4.5 218 3 12.10 8 M24
168.3 192 11.70
200 219.1 375 320 30 88 34 244 16 10 6.3 6.3 285 3 21.00 12 M27
250 273.0 450 385 33 105 38 306 18 12 7.1 7.1 345 3 34.20 12 M30
_300 323.9 515 450 33 115 42 362 18 12 8 8 410 4 47.60 16 M30
350 355.6 580 510 36 125 46 408 20 12 8.8 8.8 465 4 69.30 16 M33
400 406.4 660 I 585 39 135 50 462 20 12 11 11 535 4 98.00 16 M36
450 457.0 685 610 39 135 57 500 20 12 12.5 12.5 560 4 105.00 20 M36
500 508.0 755 670 42 140 57 562 20 12 14.2 14.2 615 4 130.00 20 M39
600 610.0 890 795 48 150 72 666 20 12 16 16 735 5 209.00 20 M45
*) flanges with diameters not specified in standard EN 1092-1: 2013 - can be made to order