The materials are: 304 stainless steel submersible pump, 316 stainless steel submersible pump, and 316L stainless steel submersible pump. The corrosion resistance of the three is increasing, which mainly depends on the nickel content of the stainless steel material. 304 is suitable for transporting corrosive media, while 316L is suitable for media with strong corrosiveness, with a pH value between 3-11. There is also a type of bi-directional rigid material that belongs to stainless steel and 316L stainless steel materials, with the same level of corrosion resistance and much higher hardness than the first three.

★ Motor protection level: IPX8, insulation level F;
★ Adopting technology imported from Germany, it has the advantages of simple structure, reliable operation, long service life, convenient maintenance, and high performance indicators
The YQSH series submersible three asynchronous motors for wells have a wet filled water sealed structure
★ Stainless steel 304 material (special materials 316, 316L, 3861 tin bronze require customization)
★ Corrosion resistance, high hardness
★ The motor operates stably with minimal noise
★ Users can use it horizontally when needed (but the lifespan is 60% of vertical)

1. The electric motor should be fully submerged in water vertically (or horizontally), with a depth of no more than 70m and a minimum distance of 5m from the seabed.
2. The medium water temperature shall not exceed 30 ℃.
3. The solid impurity content (weight ratio) in water shall not exceed 0.5%.
4. The medium water does not contain corrosive substances, and the pH value is within the range of 7.9-8.6.
5. The interior of the motor should be filled with clean water (antifreeze can be added) during operation.
6. Power range: 11.2kw -180kw (2nd speed) 33kw -620kw (4th speed)
Applicable occasions: Water wells of 6 ", 8", 10 ", 12", 16 "or in water pools or pits.

Material Science:
Impeller: Tin bronze (various grades) such as ZCuSn3Zn8Pb6Ni1
Pump casing: Tin bronze (can be cast in various grades) such as ZCuSn3Zn8Pb6Ni1
Pump shaft: stainless steel 316L. Filter screen: 316L. Connecting bolt: 316. Outlet flange: 316
Motor upper and lower guide bearing seat: 316. Middle section: 316. Motor shaft: 316
Motor seal: rubber seal O-ring; Machine sealing
The motor expansion adjustment bag is made of rubber material.

Note: When the environmental water or grid voltage and frequency do not meet the above regulations, users can make requests, and our company provides customized applicable products. 380V/50HZ, 660V/50HZ. If customers require special voltage or frequency, they need to inform us in advance.