Y (Wye) Strainers also known as a Y Strainer gets its name from its configuration and is most commonly used in pressurized lines, gas or liquid. They are an industrial strainer and can also be used in suction or vacuum conditions. Furthermore, if solids will flush easily from the screen, and fluid can be exhausted to atmosphere, a blow-down valve on the drain port will allow clean-out without removal of the screen, and without interrupting the process flow. By definition a strainer provides a means of mechanically removing solids from a flowing liquid. They do this by utilizing a perforated metal, mesh or wedge wire straining element.
Y-Strainers can be used in either a horizontal or vertical position while most basket strainers are designed for horizontal or slightly inclined piping applications. You must pay attention to the orientation of the chamber which collects debris and the drain (blow-down) connection of the Y Strainer. The strainer must be installed so that it is in the lowest possible position
Y Strainers are used to protect pipeline systems by filtering out small debris through the strainer’s internal basket or screen. The custom made basket can be sized with a mesh to catch smaller objects.
Y (Wye) Strainers remove items from pipelines. They protect pumps and other equipment. Being cost effect in most applications, it is a good idea to use them as much as needed. Y strainers are used in chemical processing, petroleum, power generation, marine, and etc… Wye Strainers are best used when a clean-out is not needed often. They are commonly used in high pressures.