1. OverviewD634-508 is a high-flow, high-response, pilotless direct-drive servo ...

1. Product OverviewThe D634-504 is a pilotless, direct-drive servo valve (DDV) i ...

1. Product OverviewThe D634-503 is a pilotless, direct-drive servo valve (DDV) f ...

1. Product BriefD634-502A is a pilotless direct-drive servo valve of MOOG D634 s ...

1. Product BriefD634-501A is a single-stage, pilotless direct-drive servo valve ...

1. Product BriefD634-406 belongs to MOOG D634 series pilotless direct drive serv ...