... valves Description 1. Cast iron swing check valves called as cast iron one- ... or water supply & drainage, pump etc, cast iron swing check valves can open or close automatically by the medium ... 's flow direction and strength. Cast iron swing check valves' function on pipe is preventing the ... /EN1092, BS4504 Table E/ BS10 Table E, JIS B22123Normal pressure : PN6/10/16, ANSI 125/150, JIS10K.Test ...