Phelps Style 9310 is a single-jacketed metal gaskets with overlap, which is typical used in low pressure applications include boilers, compressors, pumps, and diesel and gasoline engines. This gasket is also ideal for smooth surface applications, with comparatively narrow flange widths in circular and non-circular configurations. Overlap of jacketing material Construction offers additional filler protection than the standard single-jacketed design.

The most popular material for this Style is Copper or Stainless Steel.