What are Iso 6164 flange

Date:May 20, 2019

ISO 6164:2018(en) flange, is one type of hydraulic flanges, covers complete dimensional specifications for

flange o-ring size chart,

flange o-ring groove dimensions.

flanged heads,

flange clamps,

ports and mounting surfaces


ISO 6164 flange is applicable to four-screw, one-piece square flange clamp type tube connectors and hose fittings for use at a pressure of 42 MPa [420 bar1].


Contents as follows:


1 Scope

2 Normative references

3 Terms and definitions

4 Material

5 Selection criteria

6 Tolerances

7 Corrosion protection

8 Pressure/temperature requirements

9 Marking

10 Designation of flange connections and their parts

Annex A Assembly procedures and screw torque levels for flange connections conforming to this document

Annex B O-ring designation codes and dimensions




This second edition cancels and replaces the first edition (ISO 6164:1994), which has been technically revised.

https://www.jiayuanfitting.com/standards-info-pdf-download for your standards info. 


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