... spray chamber at the rear. 2.Working theory: With pump as power for water circulation and spray, it will be ... room. The redundant painting spray that produced during painting will flow down with the water curtain when meeting the water curtain ... pipe explosion-proof axial flow fan for exhaust air.Control systemPowder switch,emergencyswitch,light switch,fan switch,pump switch.Pumpinline pump,0.75kw each ...