... warranty 4.ISO9001,CCC approvals stainless steel deep well submersible water pump 380V Operation parameters : 1. ... 2. Lift range : 10-600m 3. Applicable well Borehole diameter : φ175-φ400mmProduct overview : QJ submersible ... widely used in agriculture irrigation, sprinkler irrigation, well water lifting and water supply, drain system of ... by mass) should be no more than 0.01%.7. PH value of water 6.5-8 ...