Technical specifications and scope of the DIN 2655 standard
The DIN 2655 standard establishes design requirements for loose flanges with a welding ring, rated for a working pressure of 25 kgf/cm² (PN 25). The product range covers nominal diameters from DN 10 to DN 500. This type of flange connection ensures reliable sealing for pipeline systems of various purposes.
Technical documentation regulates geometric parameters, the selection of steel grades, and calculated mass values for the products. The production processes, acceptance testing regulations, and product marking principles of EV Group China are based on the requirements of the DIN 2519 standard.
Industry Applications
- Design and operation of main pipelines in the aviation industry.
- Media transport systems in the aerospace sector.
- Equipping critical industrial machinery and technological installations.
Material Composition
The following categories of steel are used for the manufacturing of these products:
- Corrosion-resistant (stainless) steels.
- Carbon structural steels.
- Alloy steel grades with enhanced strength characteristics.
Important note: The DIN 2655 standard is currently classified as obsolete. For new engineering projects, EV Group China recommends using modern equivalents according to DIN EN 1092-1 (type 02 and type 32 designs), which provide full interchangeability and compliance with current international safety standards.