The HLA643-WJ-71 turbine costs around 220,000 to 250,000 yuan, which is about the same as the A180 (manufacturer's prices are based on the diameter of the turbine). The SFW1000-6/1180 generator costs around 250,000 to 330,000 yuan, and the SFW1250-8/1430 costs around 350,000 to 420,000 yuan.
According to the water height provided by the poster, the water height is 2-3 meters, the flow rate is only 7-8 liters, the power is too low and it there are no finished turbines to choose from. Since.
You can purchase a mixed flow or axial flow water pump with a flow rate and output pressure slightly lower than the data you provided to use as an impeller.
The generator only has a few dozen watts, so it is best to use a DC motor.