| http://www.w3.org/ns/prov#value | - designs for the orifice in a weir type valve bonnet illustrated in a plan and isometric view.FIGS. 9A-F show examples of different geometrical designs for the orifice in a radial style valve bonnet illustrated in a plan and isometric view.FIG. 10 is a plan and isometric view of an orifice formed by casting showing an orifice covering a bottom end with a portion of the flanged base of a weir type
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