Na-ewebata valvụ na-agbapụta FLUID-SYSTEM anyị, ihe ngwọta kachasị mma maka idowe oke okpomọkụ na ogo mmiri nke sekit hydraulic gị. A makwaara dị ka valvụ mgbanwe, a na-emepụta ngwaọrụ a dị mkpa iji mee ka mmanụ ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na nnyefe hydrostatic, na-eme ka okpomọkụ na-aga n'ihu na-achịkwa, na-edozikwa àgwà mmiri.