I-EVR iyivalvu ye-solenoid eqondile noma esetshenziswa yi-servo yolayini uketshezi, ukumunca, kanye negesi eshisayo enamakhaza ane-fluorinated.
Amavalvu e-EVR ahlinzekwa aphelele noma njengezingxenye ezihlukene, okungukuthi umzimba we-valve, ikhoyili nama-flange, uma kudingeka, anga-odwa ngokuhlukana.