Water and wastewater pipeline systems contain much more than straight sections of pipe. Valves, pumps, flow meters, strainers, hydrants, treatment equipment and other flanged components must all be connected to the pipeline.

Flange adaptors are widely used to connect plain-ended pipes to flanged valves, pumps, meters, hydrants, strainers, and other pipeline equipment. Although the component appears simple, choosing the correct flange adaptor requires more than matching the nominal pipe size printed on a drawing.

Learn how to choose between PN10, PN16 and PN25 flange adaptors for water pipelines. Compare pressure ratings, applications, selection factors and common mistakes.

Learn the key differences between restrained and non-restrained flange adaptors, including pipe restraint, pull-out resistance, installation, applications, and selection tips for water pipeline projects.

One of the most common mistakes is selecting a flange adaptor that does not match the pipe outside diameter. Pipeline projects often involve different pipe materials, and the same nominal diameter may have different outside diameters depending on the pipe standard.

Learn what a flange adaptor is, how it works in water pipeline systems, where it is used, and how to choose the right flange adaptor for reliable pipe connections.