MODEL "521" SALES ACTUATOR KIT; GLOBE-STYLE,TOTAL TFE CONTROL VALVE 1" SIZE, 304 SST SHELL, TFE STRAIGHT BODY; 150 # RF FLANGES, TFE BELLOWS & PACKING, INTEGRAL SEAT, TFE PLUG, OPT - "D" HASTELLOY C-276 STEM, ANTI-ROTATION STOP & PIN; 4.0 Cv REDUCED TRIM - .562" ORIFICE; EQUAL % INHERENT CHARACTERISTIC; MODEL C27 ACTUATOR, REVERSE ACTION, ATO-FC, 5-15 PSIG BENCH SET