Specifications: Name: Screw Impact Turbine Generator Model: 1000W Voltage: 220V Speed: 3500rpm Water Column: Head Drop 15 Meters Pipe Diameter: 75mm Water Volume: 10 liters per second Installation Notes: Find something to cover the machine head to prevent it from being exposed to rain or water. Please take care of it and use it to make the generator stay with you longer. The hydraulic requirement of the micro water turbine generator is that the vertical head is 15 meters. The pipe diameter is Z5mm and the water volume is 10 liters per second. Due to the uncertain factors of length and height, it is not possible to obtain accurate data. The vertical head drop is used as the standard. Please check whether it can meet the requirements. It is a natural gradient hydraulic generator. Don't ask how big the pump is. If you want to build a perpetual motion machine with circulating water, please avoid this. Care and maintenance of the generator. The turbine bearing has a sealing ring to protect the bearing from water. No need. Drain the oil for maintenance. The sealing ring has a service life of 1-3 years. The bearings are also easy to replace. The generators are all removable, especially the generator head. You need to find something to cover the head so that it is not exposed to rain or water. This will shorten the service life of the generator motor. Warranty conditions 1: The bearings have a three-month warranty and are consumables. 2: The ballast has a three-month warranty. 3: The generator has a 5-year warranty. Products within the warranty scope do not generate power. 4: Our factory's warranty: Only the generator is guaranteed not to generate power. From the date of purchase of the order, as long as the generator does not generate power within one year, our factory has an unconditional guarantee. Regardless of whether the generator is flooded or short-circuited, the bearing ballast consumables are only guaranteed for three months. Months, because the bearings are more likely to break if they are not regularly maintained, used and lubricated and are exposed to rain and water. There is nothing we can do about it. If the generator casing cutting product falls and the casing is deformed, the casing will be deformed and the warranty will not be covered. This is a human behavior and will occur within half a year. The product will not be replaced by the customer. 5: Freight problem: If the product does not generate power within half a year, it can be replaced with a new one. The buyer is responsible for shipping, and the dealer is responsible for it. If the product does not generate power for more than one year, the product will be returned to the manufacturer for repair. The buyer will bear the return freight, and the manufacturer will bear the replacement. Costs such as enameled wire or accessories, labor hours, etc. If the product does not generate power for more than 1 year within 2 years from the date of purchase, the buyer shall bear the return freight, and the manufacturer shall bear the maintenance costs and labor hours. 6: Three-month warranty for bearings: If there are any quality problems with the bearings within three months, the manufacturer will send the bearings to the buyer, and the buyer must replace them by himself. If the bearing is broken after three months, the buyer must buy another bearing and replace it by himself. Package includes: 1*220V 1000W Micro Hydro Generator