Model "521" Globe-Style,Total Tfe Control Valve, Sales Kit A For Product Code: ST2-DE07-0A000000G; 1" Size, 304 SST Shell, Tfe Straight Body; Tfe Bellows & Packing, Integral Seat, Tfe Plug; Opt - "D" Hastelloy C-276 Stem, Anti-Rotation Stop & Pin; .10 Cv Reduced Trim - .250" Orifice; Equal % Inherent Characteristic