What size mesh screen is used in the receiving strainer for a Type 4 system?

In a Type 4 system, the receiving strainer is designed to filter out contaminants from the fuel before it enters the storage tank or the system itself. The size of the mesh screen is critical for ensuring that the strainer effectively captures debris, such as dirt, rust, and other particulates that could potentially harm the engine or fuel system components.

The 60-mesh screen is specifically chosen for its balance between adequate filtration and flow rate. A screen that is too fine may restrict fuel flow and result in pressure build-up or fuel starvation issues. Conversely, a coarser screen may fail to catch smaller particles, leading to contamination of the fuel system. Hence, utilizing a 60-mesh screen strikes a good compromise for both filtration efficiency and allowing reasonable fuel throughput. This choice supports optimal operation and maintenance of the Type 4 system.

Other mesh sizes, while they may serve specific applications, do not align with the requirements for the Type 4 system's receiving strainer according to standard practices in water and fuel system maintenance.