EN 14870-2:2004

Explanatory Note
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Designation
6 Pressure rating and design
   6.1 General
   6.2 Tees and headers
   6.3 Extruded outlet headers
7 Information to be supplied by the purchaser
   7.1 Principal information
   7.2 Supplementary information
8 Manufacturing
   8.1 Manufacturing procedure specification
   8.2 Starting material
   8.3 Fitting manufacture
9 Testing and inspection
   9.1 General requirements
   9.2 Extent of testing and inspection
   9.3 Chemical composition
   9.4 Mechanical testing
   9.5 Non-destructive testing
   9.6 Dimensions
   9.7 Gauging
   9.8 Hydrostatic testing
10 Inspection document
11 Marking
Annex A (normative) Design calculations
Annex B (normative) Proof test
Annex ZA (normative) Normative references to international
         publications with their corresponding European publications
Bibliography

This part of prEN 14870 specifies the technical delivery conditions for unalloyed or low alloy steel seamless and welded pipeline fittings for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623.This part of prEN 14870 is applicable to welding-end fittings such as elbows, caps, tees, single or multiple extruded headers, reducers, and transition sections made from seamless and welded pipe of unalloyed or low-alloy steels.This part of prEN 14870 specifies three classes of fitting corresponding to increasing quality requirements in accordance with the technical delivery conditions of ISO 3183 for pipe as indicated in Table 1.Table 1 - Fitting class and corresponding pipe standardFitting classCorresponding pipe standardClass AISO 3183-1Class BISO 3183-2Class CISO 3183-3This part of prEN 14870 is not applicable to the selection of the fitting class.This part of prEN 14870 is not applicable to the materials for, or the attachment of, factory-welded extensions.On-land supply systems used by the gas supply industry are excluded from the scope of this standard.