BS EN ISO 27509:2020 - Petroleum and natural gas industries. Compact flanged connections with IX seal ring

BS EN ISO 27509:2020

Petroleum and natural gas industries. Compact flanged connections with IX seal ring

Status : Current   Published : December 2020



This document specifies detailed manufacturing requirements for circular steel and nickel alloy compact flanged connections and associated seal rings, for designated pressures and temperatures in class designations CL 150 ( PN 20) to CL 1500 ( PN 260) for nominal sizes from DN 15 (NPS ½) to DN 1200 (NPS 48), and for CL 2500 ( PN 420) for nominal sizes from DN 15 (NPS ½) to DN 600 (NPS 24).


NPS is expressed in accordance with ASME B36.10M and ASME B36.19M .

This document is applicable to welding neck flanges, blind flanges, paddle spacers and spacer blinds (paddle blanks), valve/equipment integral flanges, orifice spacers, reducing threaded flanges and rigid interfaces for use in process piping for the petroleum, petrochemical and natural gas industries.

This document is applicable within a temperature range from ?196 °C to +250 °C.

This document is not applicable for external pressure.

Standard NumberBS EN ISO 27509:2020
TitlePetroleum and natural gas industries. Compact flanged connections with IX seal ring
Publication Date23 December 2020
Normative References(Required to achieve compliance to this standard)ISO 5167-2:2003, ISO 80000-1:2009, EN 1591-4, ISO 2768-1, ASME B1.20.1, ISO 5167-1, ASME VIII, ISO 4287, ASTM B568, EN 1779, ISO 14313, ASME B16.5, ASME B16.34, ISO 4288, ASME B31.3:2018, ASTM B571
Informative References(Provided for Information)ISO 7-1, ASME B36.19M, NORSOK M-630, ASTM A638/A638M, ASTM A193/A193M, ASTM A240/A240M, EN 10204, ISO/TS 29001, ASTM B564, ASME B16.25, ASTM A320/A320M, ISO 898-2, NORSOK L-005, ASTM A216/A216M, ASTM A790/A790M, ASTM 494/A494M, ASTM B443, ISO 9001, ASTM A694/A694M, EN 13480 (all parts), ASTM A352/A352M, ASTM A705/A705M, API SPEC 5L, EN 12516 (all parts), ASME B18.2.2, ASTM A995/A995M, ASTM A351/A351M, ASME B16.20, EN 10222-5, ASTM A516/A516M, ISO 4200, ASTM A105/A105M, ASME B36.10M, ASTM A182/A182M, ASTM A928/A928M, ASTM A350/A350M, EN 1092-1:2018, EN 1591-1:2001
ReplacesBS EN ISO 27509:2012
International RelationshipsEN ISO 27509:2020,ISO 27509:2020
Draft Superseded By19/30394390 DC
DescriptorsPipe fittings, Steels, Pipeline transportation, Low-alloy steels, Production, Oil pipelines, Petroleum technology, Natural gas, Gas pipelines, Flanges, Inspection, Petroleum products, Pipelines
Title in FrenchIndustries du pétrole et du gaz naturel. Raccordements à brides compactes avec bague d'étanchéité IX
Title in GermanErdöl- und Erdgasindustrie. Kompakte Flanschverbindungen mit IX Dichtungsring
ISBN978 0 539 04559 8
File Size3.346 MB

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