What type of strainer is ordinarily used as a line strainer in a pipeline?

The type of strainer that is ordinarily used as a line strainer in a pipeline is typically a Y strainer. Y strainers are designed to filter out debris from fluids in a pipeline while allowing for easy cleaning and maintenance. Their Y-shaped configuration allows them to be installed in a way that facilitates the horizontal flow of fluid, making them effective for use in pipelines where space is restricted.

Basket strainers are generally used for larger debris and are positioned in a manner that requires more space for cleaning out, which may not be ideal for all pipeline configurations. Flange strainers refer to how the strainer connects to the pipeline rather than the type of strainer it is. Cylindrical strainers are less common and can sometimes be more complex to maintain compared to the simpler and more accessible Y strainer design. Thus, in many applications, the Y strainer is preferred for its efficiency and ease of use in typical pipeline installations.