1) Built-in protector will jump off automatically so as not to burn down the 
engine if the lack phase of tri-phase source or engine overheating occurs
2) Using a patented technique, the non-welded impeller can run stably, and 
is easy to carry around
3) To ensure permanent application under strongly corrosive conditions 
(seawater or industrial sewage) without replacing the impeller or painting, 
4)we have developed engineering plastic impellers and stainless steel 
impellers according to different environments and customers' special 
requirements