ISO 6164 flange working Pressure rating

Jun 21, 2019

ISO 6164 flange Surges of pressure higher than the nominal ratings will reduce the ability of the flange connections to retain the hydraulic fluid. This should be taken into account in the design of the hydraulic system.

ISO 6164  Flange connections conforming to this document shall be subjected to the burst and cyclic endurance tests specified in ISO 19879 (test assembly type 1 with 2 straight connections or type 4) to verify that they meet the specified pressure/temperature requirements.

ISO 6164  Flange connections conforming to this document and made of carbon steel shall be suitable for use at the working pressures given in Table 1 when used at temperatures between –40 °C and +120 °C.

ISO 6164  Flange connections conforming to this document shall not be assembled at temperatures lower than –20 °C.

ISO 6164  Flange connections conforming to this document and made of stainless steel shall be suitable for use at the working pressures given in Tables 1 or 2 when used at temperatures between –60 °C and +100 °C. Higher temperatures require reduction of the pressure ratings in agreement with the manufacturer.

ISO 6164  Flange connections conforming to this document shall not be assembled at temperatures lower than –20 °C.