Fourth, the applicable conditions (1) the transport of water and physical and chemical properties similar to water and other liquids; (2) the water temperature does not exceed 40 ℃; (3) water PH value is within the range of 5.5 to 8.5; (4) pump diving depth within the range of 0.5 to 3 meters, the deepest no more than 5 meters; (5) the sediment concentration in water or water-insoluble solids of not more than 0.1%; (6) If the water quality does not meet the above criteria, the user can special order a submersible pump to the factory to meet the conditions of use. 3, the pump part of various different specifications Pump pump part materials are used in cast iron, if the user request made corrosion, stainless steel cast iron pump portion can be coated with corrosion resistant materials, but need to specify in the order or in water pump located in the upper part of the motor, impeller, diffuser and casing composed QY10-110 / 4-7.5, two-stage and multi-stage pump impeller increases every level, in the middle of each vane pump in the middle of a high-lift pump with pressure QY65-25-7.5 submersible pump check valve, can reduce water hammer pressure shutdown, to avoid pump damage and accidents. 4, the control section controls the part of the pump motor parts play a protective role, our factory can provide users with the appropriate start control and protection cabinet, 30KW motor over the ends of the stator winding has thermal protection switch, when the motor temperature is too high the switch will automatically reset. User configurable controls respond pump overload, overheating, phase loss, overvoltage and undervoltage protection. Note: The control and protection cabinet startup mode starts QY40-38-7.5 submersible pumps for auto buck, users can choose our plant supporting control equipment, control equipment can also choose other units, but must be able to play an effective role in protection . Submersible pumps, QY10-110 / 4-7.5, oil-filled submersible pump (certified merchants is provided by Anguo Pump Co. Stone yuan. Anguo Stone Yuan Pump Co., Ltd. (www.shiyuanbeng.com) is specialized in the "IS centrifugal , XA centrifugal pump, BA centrifugal, B-type pump, double suction centrifugal pump "of the enterprise, the company of" honesty, hard service "concept, to provide you with the highest quality products and services please contact us! Contact : Geng wheat.