The impeller made of front cover plate,front liner plate.vane, The vane is distorted,the vanes have 3-6, The vanes distribution of blade back on the outer edge of the front cover plate and rear cover plate,the vanes have 8-10.The impeller is made from wear-resistant high chromium alloy cast iron(hardness≥58HRC,impact toughness≥9J/cm2).The impeller is fixed on the pump shaft with double thread,and the thread tolerances are inspected according to the pitch diameter of thread.Disassembly rings are installed at the rear of the shaft sleeve to make maintenance easy.
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