Which type of strainer typically has a drain valve located on a stem extending at an angle below the strainer?

The Y-type strainer is characterized by its design, which allows for effective filtering of debris from fluid systems while enabling easy maintenance. The specific feature of having a drain valve located on a stem that extends at an angle below the strainer facilitates straightforward access for draining and cleaning the collected debris without needing to disrupt the flow of the system significantly. This angled drain valve design is particularly advantageous in applications where regular maintenance is necessary, as it allows for quick removal of accumulated materials.

In contrast, the basket strainer is typically configured with a straight-through design and does not have an angled drain stem, making it less convenient for draining. Inline strainers and threaded strainers have their own construction styles, focusing on different aspects of installation or functionality, but do not include the distinct drain valve position that is a hallmark of Y-type strainers. Therefore, the Y-type strainer's design effectively supports both filtration and maintenance needs, setting it apart from the other types.