300QJ deep well pump for drinking water farm irrigation
♣ Working conditions
1. 380V (deviation≤5%), 50Hz (deviation≤1%), 3 phases
2.Electric motor must be full of clean water
3.The first piece of impeller of pump should be at least 2m or more below dynamic water level. The distance from Pump to static water level should be not more than 70m. The distance from motor base to well bottom should be not less than 3m.
4.Water temperature should be not more than 20℃
5.Sand content of water (based on mass of sand) should be not more than 0.01%
6.PH should be 6.5-8.5
7.The content of hydrogen sulfide in water should be not more than 1.5mg/l
8.The content of chloride ions should be not more than 400mg/l
9.Water yield of water source should satisfy the demand of pump running.
♣ Structural features:
QJ submersible pump consists of multi-stage centrifugal impeller in series. The pump stage is connected by a flat rib or bolts, each of which is supported by a rubber (or copper) bearing, with no check valve at the top of the pump. YQS submersible motor is a closed water-filled three-phase asynchronous motor, the winding is made of water-resistant continuous sealing structure. Both the bearing and the thrust bearing are water lubricated bearings. The upper part of the motor is equipped with sand control mechanism to prevent the sediment from entering the motor internal control.
♣ Deep Well Pump Advantages
♥ Easy installation
♥ Low noise, high temperature resistence, long service life.
♥ Fully operating in water avoiding entering air.
♥ Replacing the emergency pump quickly when the pump breaks down in harsh environment such as high temperature
water tank or pool,or somewhere that are inconvenient for man to maintain.
♥ Portable design with its small size and light weight. so you neednt install bay bolt.
♣ 300QJ Submersible Pump Model Description
300- the overall diameter of the pump, that is, the diameter of the wells can not be less than 150mm;
QJ - well submersible pump
200 - Pump design point flow
20- pump design point head
| Model Item || Head Range /m || Pump Efficiency/% || Rated Power/KW || Rated Current/A || Motor Efficiency/% |
| 300QJ200-20/1 || 18-23 || 76 || 18.5 || 40.8 || 82 |
| 300QJ200-40/2 || 36-45 || 76 || 37 || 77.8 || 85 |
| 300QJ200-60/3 || 54-67 || 76 || 55 || 114.3 || 86 |
| 300QJ200-80/4 || 75-89 || 76 || 75 || 152.3 || 87 |
| 300QJ200-100/5 || 92-112 || 76 || 90 || 182.8 || 87 |
| 300QJ200-120/6 || 113-129 || 76 || 100 || 203.1 || 87 |
| 300QJ230-20/1 || 16-25 || 76 || 22 || 47.9 || 83 |
1.100% copper rewindable wire
3.Fast delivery time
4.Dry run pretection
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Product Categories : QJ Type Submersible Well Pump