Ama-servo-valve ahlukanisiwe asebenza nge-hydraulics, angama-valve ahlukaniswe ngama-2 noma ama-3. Ngenxa yokusebenza kwawo okuphezulu, asetshenziswa kakhulu ekulawuleni okuvaliweyo kokuma, amandla noma ingcindezi, kanye nesivinini. Ama-servo-valve e-Bosch Rexroth ahamba phambili ekulawuleni ingcindezi, ukuhamba noma indawo.