ISO/TC 131/SC 4/WG 2 - Flange ports and flange connectors

This document gives general and dimensional specifications for flanged heads, flange clamps, ports and mounting surfaces applicable to four-screw, one-piece square flange clamp type tube connectors and hose fittings for use at a pressure of 42 MPa [420 bar[1]]. It also specifies the dimensions of the seals to be used, as well as the grooves that house the seals. These connections are intended for application in hydraulic systems on industrial and commercial products where it is desired to avoid the use of threaded connectors. [1] 1 bar = 0,1 MPa = 105 Pa; 1 Pa = 1 N/m2.

ISO 6162-2:2018 gives general and dimensional specifications for flanged heads, split flange clamps (FCS and FCSM), one-piece flange clamps (FC and FCM), ports and mounting surfaces applicable to four-screw, split and one-piece flange clamp type tube connectors and hose fittings for use at a pressure of 42 MPa (420 bar[1]). It also specifies the dimensions of the seals to be used, as well as the grooves that house the seals. ISO 6162-2:2018 also recognizes the need to accommodate metric screw fasteners (type 1) (for DN 13 to DN 76), as well as to provide a means to use existing inch screw fasteners (type 2) (for DN 13 to DN 51). These connections are intended for application in hydraulic systems on industrial and commercial products where it is desired to avoid the use of threaded connectors. [1] 1 bar = 0,1 MPa = 105 Pa; 1 Pa = 1 N/m2.

Gives complete general and dimensional specifications. For flange connections, a minimum design factor of 2,5 is valid with screws of property class 8.8, not including weld joints, for which special instructions exist. The design factor of the flange may be increased to 3,5 or better by using flange-head screws of property class 10.9. Also includes appropriate references to the O-ring seals and their assembly components (ISO 3601-1, ISO 48, and ISO 3601-3) as well as recommended port dimensions and port design considerations.

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.