Model "521" SALES ACTUATOR KIT FOR PRODUCT CODE: ST2-BS07-0B051000G; Globe-Style,Total Tfe Control Valve; 1" Size, 304 SST Shell, Tfe Straight Body; 150 # Rf Flanges, Tfe Bellows & Packing, Integral Seat, Tfe Plug,;316l SST Stem (Non-Wetted); 2.50 Cv Reduced Trim - .562" Orifice; Equal % Inherent Characteristic; Model C27 Actuator, Reverse Action, Ato-Fc, 5-15 PSIG Bench Set;