double flanged ductile iron pipe

https://www.slrfoundry.com/fittings-list/double-flanged-pipe.html

Description

A double flanged ductile iron pipe is a type of piping component that features flanges at both ends of the pipe. These flanges are designed to provide a connection point for other piping components, such as valves or fittings. The double flanged pipe is commonly used in applications where a secure and leak-proof connection is required, such as in water distribution systems, sewage treatment plants, and industrial process piping. The flanges on the double flanged pipe are typically made of ductile iron material, and are attached to the pipe using bolts.

Specification of ductile iron double flanged pipe

Dimensions of flanges are in conformity with ISO 7005-2 and EN 1092-2

1) Centrifugally cast pipes with welded-on flanges

DN80 to DN450: K9 for PN10, PN16, PN25 and PN40

DN500 and DN600: K9 for PN10, PN16 and PN25; K10 for PN40

DN700 to DN1600: K9 for PN 10, PN 16 and PN25

DN1800 to DN2600: K9 for PN10 and PN16