A Practical Guide to Flange Selection for Piping Systems

We have previously released several models of vertical multistage pumps, which feature different water inlet and outlet connection methods, including flanged, threaded, and quick-connect options. Some customers have specifically asked us about the advantages and disadvantages of these connection types and how to choose the right one (to view such products, click here). This article aims to provide a more detailed explanation.

Selecting the correct flanged connection is crucial for the performance and longevity of a vertical multistage pump. The two primary standards are ANSI flanges (common in North America) and DIN/PN flanges (common in Europe and Asia). Your choice depends on the system's pressure rating, regional standards, and the required sealing face type (like Raised Face or Flat Face). The table below provides a clear comparison to guide your selection.

Comparison Table: