Amapayipi amaningi ane-high-pressure multi-line manifold asetshenziselwa ukuxhuma amayunithi amabili amadivayisi e-hydraulic, ngokuvamile amayunithi ahlukanisayo: amayunithi okusebenza nokulawula asetshenziselwa ukulawula izingxenye eziseduze zezimbozo ezenziwe ngomshini. Avumela ukuthumela ama-control impulses kude phakathi kwamayunithi okulawula nawokusebenza.