I-valve ye-cartridge ngokuqhelekileyo kufuneka ifakwe kwi-hydraulic manifold ukuze isebenze ngokufanelekileyo, kwaye iindidi zayo zibandakanya iindidi ezintathu: i-valve yokulawula uxinzelelo, i-valve yokulawula i-valve kunye ne-valve yokulawula ukuhamba. Iibhloko ze-hydraulic manifold zenziwa ngokubanzi ngentsimbi okanye i-aluminiyam, kwaye emva koko kufuneka zenziwe ngoomatshini kwibhloko ukuququzelela ukufakwa komngxuma wevalve yekhatriji.