ČSN EN ISO 27509

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

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Detail information

Designation: ČSN EN ISO 27509

Publication date: 01/06/2021

Pages: 122

Country: Czech technical standard

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Anotation

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 1/2) to DN 1200 (NPS 48), and for CL 2500 (PN 420) for nominal sizes from DN 15 (NPS 1/2) to DN 600 (NPS 24).
NOTE - 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

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