English
The JINAOTE ATQJ Series Deep Well Submersible Pump is engineered for steady groundwater pumping, perfectly suited for agricultural irrigation, deep well water extraction, reservoir water intake and centralized water supply systems. Built with multi-stage centrifugal impellers, corrosion-resistant components and high-efficiency energy-saving submersible motors, it offers consistent operational stability, minimal maintenance workload and extended service lifespan.
1. Integrated motor and pump structure, submersible underwater operation with high safety and reliability.
2. No special requirements for well casing; the rising pipe only needs to withstand corresponding working pressure.
3. Easy installation, operation and maintenance, small floor space occupation; no pump house construction required.
4. Compact structure and low raw material consumption.
| Item | Specification |
| Pump Type | Vertical Deep Well Submersible Pump |
| Structure | Multi-stage Centrifugal Pump |
| Motor Type | Three-phase Asynchronous Submersible Motor |
| Rated Voltage | 380V / 660V |
| Frequency | 50Hz |
| Flow Range | Customized |
| Head Range | Up to 900 m |
| Installation Type | Vertical Installation |
| Cooling Method | Water-filled Motor Cooling |
| Medium Temperature | ≤90℃ |
| PH Range | 6.5–8.5 |
| Solid Particle Content | ≤0.01% |
1.The Deepwell Submersible Pump consists of submersible 3-phase asynchronous motor and pump body. The motor is directly coupled with upper pump unit. Reliable shaft seal fitted on top motor shaft prevents cross-leakage between internal motor cooling water and pumped medium, ensuring long-term stable operation.
2.The pump is single-suction multi-stage vertical centrifugal type; matched motor is water-filled wet-type vertical submersible asynchronous motor, connected via barrel-type coupling.
3.Motor winding adopts nylon-sheathed PE waterproof magnet wire; the motor cavity is filled with clean fresh water.
4.Water-lubricated guide bearings are used for motor. Thrust bearing at motor bottom bears bidirectional axial thrust from pump. High-head version equips nickel-containing copper fan-shaped thrust pads matched with imported Phylos sliding plates for axial load bearing.
5.An extra axial force bearing component is installed between pump and motor on high-lift models, maximum head up to 900m.
1.Fill the motor cavity with clean fresh water before startup; drain all internal water for winter storage to avoid frost cracking.
2.Regularly test insulation resistance of the unit, value shall not be lower than 0.5 MΩ.
3.Standard warranty period: 1 year under normal operation.
Customers must read this selection guide carefully to select the proper pump model. Improper selection will shorten pump service life and lead to higher power consumption.
Select the appropriate pump model based on the inner diameter of the well, water temperature, PH value, flow rate, dynamic water level and other parameters.
Model Code Explanation: 200 Q J(R/H)80--144
200: Minimum allowable inner well diameter (Unit: mm). Other available specifications include 100, 150, 250, 300, etc.
Q: Submersible pump, the initial letter of Chinese "Qianshui".
J: Well-use pump, the initial letter of Chinese "Jingyong".
R / H: Classification based on water temperature
QJ type: applicable water temperature 20℃ ±5℃
QJR type: applicable water temperature 25℃ to 90℃
80: Rated flow rate (Unit: m³/h). The pump’s hourly output flow must be lower than the well’s water inflow rate.
144: Rated head (Unit: m). It refers to the vertical distance from the dynamic water level to the water outlet.
Additional PH parameter description:
Applicable water PH range: 1-14. The QH series pump features anti-corrosion performance.
Water inflow quantity (Unit: m³/h): The total volume of underground water flowing out of the well per hour. This data is generally provided by the well drilling contractor.
Static water level (Unit: m): The vertical height between the water surface inside the well and the well head when the pump is not operating.
Dynamic water level (Unit: m): As the pump keeps pumping water, the water level inside the well will drop continuously. When the water level stabilizes at a certain height, the pump output flow will remain steady and the water level will no longer decrease. The vertical distance between this stable water surface and the well head is defined as the dynamic water level.
Flow matching limit: The pump’s rated flow rate must be less than the well’s hourly water inflow rate, otherwise the well will run dry and the pump may burn out due to dry operation.
Temperature classification: Standard QJ pumps are for normal-temperature groundwater; QJR high-temperature resistant pumps must be used for hot spring water or high-temperature underground water.
Anti-corrosion solution: QH series pumps are recommended for wells with acidic or alkaline corrosive water.
Well diameter requirement: The inner diameter of the well must be larger than the outer diameter of the pump body to ensure the pump can be lowered into the well smoothly.
Before selecting a pump model, customers should confirm the following information:
1. Required Flow RateDetermine the required water output according to irrigation area and water demand.
2. Total Pump HeadCalculate the required lifting height including:
· Well depth
· Vertical lifting distance
· Pipeline pressure loss
· Terminal water pressure requirements
3. Well DiameterSelect a pump diameter suitable for the existing well casing.
4. Power SupplyConfirm voltage, frequency and available electrical capacity.
5. Water QualityCheck water temperature, PH value and solid particle content.
Providing these parameters helps ensure the selected pump delivers the expected performance.
| Fault Phenomena | Reasons | Solutions |
| Head unreachable, no water able to be absorbed or insufficient water discharge. | 1. Dynamic water level drops under the allowed min. dynamic water level;2. Breakage in lift pipe joint; 3. Reversal rotation of the motor;4. Decrease in voltage;5. Blocked water inlet;6. Damaged coupler. | 1. Increase pump stage and lift pipe, to increase well depth;2. Repair breakage;3. Replace wire connector;4. Check voltage;5. Wash water inlet;6. Replace coupler. |
| Motor fails to run at startup, with buzz. | 1. Bearing seizure;2. Single phase running of the motor. | 1. Examine and repair damaged parts;2. Check connecting wire, and find phase failure. |
| Overlarge ammeter pointer swing | 1. Dynamic water level drops to absorption inlet;2. Dynamic water level drops under the allowed min. dynamic water level; | 1. Reduce water discharge, and increase submergence depth. |
| Violent vibration of the unit | 1. Pump spindle is bent;2. Wear and tear at unit bearing part is too large;3. Too intense throttle;4. Damaged coupler. | 1. Calibrate the spindle;2. Replace the bearing;3. Enlarge the gate valve;4. Replace coupler. |
| Drop in flow | 1. Wear and tear at wearing ring;2. Blocked water inlet;3. Leakage at joint between lift pipes or shells. | 1. Repair or replace worn parts;2. Wash water inlet;3. Check connection part. |
| Sudden decrease in insulation resistance | 1. Poor quality of motor cable connector;2. Damaged insulation of motor rotator wiring;3. Worn cable. | 1. Reconnect cable connector;2. Repair motor wiring;3. Repair damages. |
| Increase in power consumption (ammeter indication exceeds ratedvalue) | 1. Worn bearing impeller;2. Inter contact of the motor after the bearing is worn;3. Abrasion between impeller and shell. | 1. Examine and repair pump;2. Examine and repair motor;3. Control flow and check motor thrust bearing. |
A deep well submersible pump is mainly used for extracting groundwater from deep wells and supplying water , domestic use, industrial applications and other water transfer projects.
Yes. The ATQJ Series is designed for farmland irrigation, sprinkler systems, greenhouse irrigation and other agricultural water supply applications.
Customers should provide:
· Required flow rate
· Pump head
· Well depth
· Well diameter
· Water source information
· Power supply requirements
Yes. JINAOTE can customize pump parameters including flow rate, head, motor power, voltage and materials according to project requirements.
The allowable installation depth depends on the selected model and operating conditions. High-head models can achieve lifting heads up to 900 meters.
Regular checks of insulation resistance, cable condition, operating current and water output are recommended to maintain stable performance.
Vicky Zhao / Sales Director
E-mail: vicky@tjaote.cn
MP:+86-151005630(Wechat/ Whatsapp)
SKYPE: vickyzhao6688
