English 
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AY type single and two-stage centrifugal oil pump uses:
1. The degree of generalization of parts is high, and standard parts are shared by several series of products.
2. The bearing body components replace the original 35, 50 and 60 bearing bodies with 45, 55 and 70 bearing bodies respectively, which improves reliability.
3. There are three types of bearings: air cooling, fan cooling, and water cooling, which are selected according to the different operating temperatures of the pump.Among them, fan cooling is especially suitable for areas with water shortage or poor water quality.
4. Material selection and refining, the main body is mainly made of type II and III materials, and the bearing body and other parts are added to cast steel and cast iron, which provides favorable conditions for cold areas, cold dew areas, open-air use, and marine use.
5. In order to maintain inheritance, the structural type, installation dimensions, and performance parameter range of the AY-type oil pump remain the same as those of the Y-type oil pump, making it easier to update and retrofit old equipment.
6. The hydraulic flow part adopts a hydraulic model of a high-efficiency energy-saving pump, which is 5-8% more efficient on average than the old Y-type oil pump.
Model meaning:
Flow rate Q: 2.5～300m3/h
Lift H: 30～330m
Temperature T: -20℃～+300℃
AY type single and two-stage centrifugal oil pump uses:
1. The degree of generalization of parts is high, and standard parts are shared by several series of products.
2. The bearing body components replace the original 35, 50 and 60 bearing bodies with 45, 55 and 70 bearing bodies respectively, which improves reliability.
3. There are three types of bearings: air cooling, fan cooling, and water cooling, which are selected according to the different operating temperatures of the pump.Among them, fan cooling is especially suitable for areas with water shortage or poor water quality.
4. Material selection and refining, the main body is mainly made of type II and III materials, and the bearing body and other parts are added to cast steel and cast iron, which provides favorable conditions for cold areas, cold dew areas, open-air use, and marine use.
5. In order to maintain inheritance, the structural type, installation dimensions, and performance parameter range of the AY-type oil pump remain the same as those of the Y-type oil pump, making it easier to update and retrofit old equipment.
6. The hydraulic flow part adopts a hydraulic model of a high-efficiency energy-saving pump, which is 5-8% more efficient on average than the old Y-type oil pump.
Model meaning:
Flow rate Q: 2.5～300m3/h
Lift H: 30～330m
Temperature T: -20℃～+300℃
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