MOOG D661-4577C 4444C servo valve D661-4642 G45HOAO6VSP2HA G761-3008B 3002 S10J0GM4VPL 3039B S63JOGA4VPL G761 D661

Series Models

 Series G Servovalve with nozzle-flapper or ServoJet® pilot stage, spool in bushing, without additional mechanical feedback

 Series S Servovalve configured like version G, but with additional mechanical feedback Series H Servovalve configured like version S, but with improved performance (high response) 

Series P...A/B Proportional valve with ServoJet® pilot stage, spool in body, without additional mechanical feedback Series P...F/G Proportional valve configured like version P...A/B, but with nozzle flapper pilot stage and additional mechanical feedback