Flanges

Flanges according to Russian standards are manufactured:

- GOST 33259-2015 - flanges of fittings, fittings and pipelines for nominal pressure up to PN 250. Design, dimensions and general technical requirements;
- GOST R 54432-2011 - flanges of valves, fittings and pipelines for nominal pressure from PN 1 to PN 200. Design, dimensions and general technical requirements;
- GOST 9399-81 - steel threaded flanges for PN from 20.0 to 100.0 MPa (200-1000 kgf / cm2). Technical conditions;
- GOST 28919-91 - flange connections of wellhead equipment. Types, main parameters and sizes;
- GOST 28759.1-4-90 - flanges of vessels and apparatus and gaskets to them. Design and dimensions. Technical requirements;
- GOST 28759.2-90 - steel flat welded flanges of vessels and apparatus. Design and dimensions;
- GOST 28759.3-90 - steel butt-welded flanges of vessels and apparatus. Design and dimensions;
- GOST 28759.4-90 - steel butt-welded flanges of vessels and apparatuses for an octagonal gasket. Design and dimensions;
- ATK 26-18-12-96 - threaded flanges for the installation of thermometers, manometers and other measuring instruments for corrosive environments for PN from 4.0 to 16.0 MPa. Design and dimensions.
- GOST 12820-80 - steel flat welded flanges for PN from 0.1 to 2.5 MPa (from 1 to 25 kgf / cm2). Design and dimensions;
- GOST 12821-80 - steel butt-welded flanges for PN from 0.1 to 20.0 MPa (from 1 to 200 kgf / cm2). Design and dimensions;
- GOST 12822-80 - loose steel flanges on a welded ring for PN from 0.1 to 2.5 MPa (from 1 to 25 kgf / cm2). Design and dimensions.

Flanges according to foreign standards:

- ASME B16.5;
- ASME B16.47;
- DIN - DIN 2527, DIN 2573, DIN 2576, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638;
- EN 1092-1.

Special flanges:

- OST 34-42-836-86 - flat flanges for TPP pipelines;
- OST 26-842-73 - steel butt-welded flanges for gasket of oval and octagonal cross-section.