ISO 6164:1994Withdrawn

Hydraulic fluid power — Four-screw, one-piece square-flange connections for use at pressures of 25 MPa and 40 MPa (250 bar and 400 bar)

Transmissions hydrauliques — Brides de raccordement carrées monobloc à quatre vis pour des pressions d'utilisation de 25 MPa et 40 MPa (250 bar et 400 bar)

This edition has been replaced by ISO 6164:2018.

Abstract / scope

Gives complete general and dimensional specifications. For flange connections, a design factor of 2,5 is valid, not including weld joints, for which special instructions exist. Also specifies the dimensions of the seals to be used, as well as the grooves to house the seals.

Life cycle

Replaced by

ISO/CD 6164-1Deleted (project abandoned)Hydraulic fluid power — One-piece square-flange connections — Part 1: Four-screw square-flange connectors for use at 25 MPa (250 bar), DN 12 to DN 70International Standard · ISO/TC 131/SC 4 ISO/CD 6164-2Deleted (project abandoned)Hydraulic fluid power — One-piece square-flange connections — Part 2: Four-screw square-flange connectors for use at 40 MPa (400 bar), DN 10 to DN 80International Standard · ISO/TC 131/SC 4 ISO/CD 6164-3Deleted (project abandoned)Hydraulic fluid power — One-piece square-flange connections — Part 3: Four-screw square-flange connectors for use at 50 MPa (500 bar), DN 12 to DN 50International Standard · ISO/TC 131/SC 4 ISO 6164:2018PublishedHydraulic fluid power — Four-screw, one-piece square flange connections for use at pressures of 42 MPa, DN 25 to 80International Standard · Published 29 May 2018 · ISO/TC 131/SC 4