▼剖面分解圖/Cross section and parts list：
■lishida impeller and diffuser adopt the macromolecule wear-resistance materials, and made by pressing and molding, they are high wear-resistance, with long life, and also cannot oxidize, rust or pollute.
■The multiple check valve is placed in the inner of outlet part, which can effectively prevent the impact of precipitating water and sediment of the reflux sands. ensure startup of pump fluently. also can prolong life of motor effectively.
■The body is covered with stainless case. and its rush pith is made with high-quality wear-resisting alloy and compound stainless materials, equipped with multi-level alloy and anti-wearing bearing structures with high wear-resisting rubber.
■Outer casing of pump is made from the sainless steel,the whole body is made by blocking production structure of high precision insulation and machine noise all reach the characteristics of the high-quality product of the same kinds in the world, also accord with theEuro-American high-quality standard. In the inner part uses high quality thrusting bearing, it has high seal, and also has pneumatic balance anti-press device, to ensure pump operting more stably, high eficienty and use for longer time.
■Unique floating impeller stuctures, no axi1e-centred force to the motor,capable of completing multilevel high flow.
■Small outside diameter high flow，high head， suitable for small-caliber well and can reduce the boring costs significantly.
■Integrated electric fluid-level cortrol making automatic water-pumping possible.
■Multi-stepped precise relay-cotrolled electric box enabling the motor to run safely and reliably.