Self-Priming Vortex Pump series 25ZB Electric Self-Priming peripheral Pump STRUCTUREAL CHARACTERISTICS 1. Cast iron Pump body, with UNI ISO228/ ... (patented ), reducing diffidulties when starting the pump after long periods without use, due to ... distribution of water from surge tanks. These pumps should be installed in a covered area, ... /2''10050818280×160×235 Self-Priming Peripheral pump 25ZB Series