Spray shields are intended for use around flanged joints,
flanged bonnets and any other flanged connection in oil pressure systems
which are located above the floor plates and which have no insulation
in way of the joints. The purpose of spray shields is to prevent the
impingement of leaked or sprayed flammable liquid onto a hot surface
or other source of ignition. (Refer to appendix
7, guidance for insulation of hot surfaces.)