1, power frequency 50Hz, rated at 300V or 660v (tolerance ± 5%) for three-phase AC power.
2, solids content (by mass) is not greater than 0. 1%.
3, was called for pumping liquid acid PH value of 6.5-8.5.
4 transportation medium temperature not exceeding 100 ℃.
5, pump inlet must be below water level 1M, but depth does not exceed the static water level in 70m, electric pump from the bottom of the lower end depth of at least 1M.
6, requires the well integrity, borehole smooth well pipe shall not be staggered.