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ISO 6164 Assembled square flange connection standard

Date:Jun 21, 2019

ISO 6164:2018 Designation of flange connections and their parts and Assembled square flange connection, tube to tube and tube to port.


ISO 6164 Flange clamps shall be designated by:

a) “clamp”, as appropriate;

b) reference to this document, followed by a spaced hyphen;

c) the DN size designation, separated by a multiplication symbol without spacing.

EXAMPLE Square flange clamp size DN 32

Clamp ISO 6164 — FC×32


ISO 6164 Flange ports shall be designated by:

a) “port”;

b) reference to this document, followed by a spaced hyphen;

c) flange size of related connector, without the DN size designation.

EXAMPLE Port for a flange connection of size 70

Port ISO 6164 — P70


ISO 6164 Flanged heads shall be designated by:

a) “head”;

b) ISO 6164 followed by a spaced hyphen;

c) FHG (with groove) or FH (without groove) and the DN size designation, separated by a multiplication

symbol without spacing.

EXAMPLE Flanged head with groove for a flange connection of size 56

Head ISO 6164 — FHG×56

5_ISO_6164_square_flange_assembled_designation


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