FAQ ABOUT DIFFUL

Q: How does solar PV panels work?A: Solar photovoltaic (PV) panels converts sunlight directly to electricity (DC or Direct Current). Your solar panel will be most efficient in your locations peak sunlight hours. Sunlight hitting the surface of a cell knocks electrons loose, which then travel through a circuit from one larger to the other, providing a flow of electricity.  For more detailed information on solar photovoltaic PV panels, please contact us. E-mail/Skype:sales08@diffulpump.comTel/WhatsApp:+86 15058288607 

Q: Does COVID-19 have an impact on product deliveryA: Due to the impact of COVID-19, the product delivery period will be appropriately extended. Please consult us for the specific delivery date. E-mail/Skype:sales08@diffulpump.comTel/WhatsApp:+86 15058288607 

Q: Is the factory fully operational?A: More than 80% of factory workers have resumed work. Workers are currently working overtime to produce solar pumps. The factory has basically resumed production capacity. At the same time, the company is also stepping up efforts to increase personnel and increase production capacity. The company will improve product delivery as soon as possible to meet customer needs. E-mail/Skype:sales08@diffulpump.comTel/WhatsApp:+86 15058288607 

Q: Is the Chinese New Year holiday?A: Yes! Holiday time of production workshop: 2020.1.14-2020.2.8Holiday time of sales department: 2020.1.18-2020-2.1During the holiday of the production workshop, no pump production work will be arranged. If you have any questions during the holiday, you can still contact our sales staff. We will continue to answer your questions. E-mail/Skype:sales02@diffulpump.comTel/WhatsApp:+86 18858098438 

Q: About factory productivity and deliveryA: Factory produces no less than 200 solar water pumps per day. The normal delivery period after the customer places an order is 10 days. Special circumstances will be communicated in advance.For more information, please contact us. E-mail/Skype:sales02@diffulpump.comTel/WhatsApp:+86 18858098438

Q: How do DIFFUL compare with other pump brands?  A: DIFFUL specializes in the development and production of solar water pumps, enabling our systems to reduce costs for our customers without sacrificing quality.Like in most industries we also compete with lots of cheap products. Cheap brushed motors, flimsy plastic diaphragm pumps are making a bad name for solar pumps. We have stayed maintained our high quality knowing that integrity, quality and reliability win in the end. Our reputation for our commitment to our quality products, warranty and honest, friendly and respectful support is why more customers continue to trust DIFFUL.  E-mail/Skype:sales02@diffulpump.comTel/WhatsApp:+86 18858098438

A:How Deep is a Deep Well Q:Deep Well pumps are commonly used in water wells and extract water from an underground water source or aquifer.Deep well  pumps are designed for use in water wells ranging from depths of 30ft to 3000ft below the surface.Because of the different requirements of water wells,deep water well pumps come in different sizes and varieties that are engineered to fit each water well's particular application.

How to Increase Amps in a Solar Panel  You can alter the current output with simple changes to the wiring of your solar panels.You can alter the current output with simple changes to the wiring of your solar panels. In arranging solar panels, you have two options for modifying the power output, according the Ohm's law. You can either wire multiple panels in series to increase voltage, with current (amps) remaining the same as any one panel, or wire the panels in parallel to increase current, with the voltage output remaining the same as any one panel. If the wiring has to travel a large distance, increasing voltage is a better option. Either way, according to Ohm's law, you will get the same ultimate power output (P=VI). You can alter the current output with simple changes to the wiring of your solar panels.You can alter the current output with simple changes to the wiring of your solar panels. In arranging solar panels, you have two options for modifying the power output, according the Ohm's law. You can either wire multiple panels in series to increase voltage, with current (amps) remaining the same as any one panel, or wire the panels in parallel to increase current, with the voltage output remaining the same as any one panel. If the wiring has to travel a large distance, increasing voltage is a better option. Either way, according to Ohm's law, you will get the same ultimate power output (P=VI).Mount your solar panels so that they face south (or north if located in the southern hemisphere) at an angle that matches your latitude if keeping the panels fixed. Make sure that the site selected does not receive shade throughout the day.Identify and isolate the two power-output wires from each panel. One will be labeled positive (+) and the other negative (-).Connect together all of the positive output cables using a single length of shielded wire. Start at the end of your array, farthest from where the charge controller is situated, and connect one end of the wire to the positive terminal on the farthest panel. Strip a small amount of shielding away from the wire to connect the positive output wires of all the subsequent panels to it then cover all exposed wiring with a liberal amount of electrical tape.Connect a single wire in the same fashion as in step 3 but to the negative wires. You should be left with two wires connecting all the panels, one positive and one negative. Connect these two wires to the corresponding terminals on your charge controller. Wiring the panels in parallel, like this, will output the voltage of any one panel, but will add the current output together.

Q:What are the advantages of solar pumps? A:Solar pumps, also known as photovoltaic pumps, are one of the best equipments for domestic water supply and farmland irrigation in areas lacking power in the world. It can use solar energy everywhere, the system is fully automated, sunrise and sunset. It does not need the supervision of personnel, so that the workload of maintenance personnel can be minimized, so solar pumps are the ideal green energy application system.Solar pumps also have some advantages that other pumps do not have. The first point is the reliability of solar water pump, because it seldom uses moving parts. As long as the light energy is continuously supplied, the water in the underground is very reliable.The second point is its safety. Its voltage is generally relatively small and relatively safe. Secondly, its power comes from solar panels, so it is easy to control. Then, the pump itself is noiseless, and it will not produce other liquids and gases in the work. Therefore, the solar pump is a relatively environmentally friendly pump, so it is highly concerned in the market.Third, the pump itself is relatively small, so the installation is relatively simple and convenient.Fourth, solar energy is used, but solar energy is available everywhere, so Solar Pumps and the use of a very wide range.These are some of the advantages of the solar pump itself, because it has the advantages of power supply everywhere, so its use is very many, including desert well digging, farmland irrigation and so on. Generally, pumps are difficult to do, solar pumps can easily do.

Q:Can Solar Panels run a pump A: solar pump is designed to run directly off solar panels without the need to use batteries or mains power.The controllers supplied with the pumps can vary the speed of the motor which will in turn increase and decrease the flow rate according to the output for the solar panels. Our company's home pagehttp://www.diffulpump.com/ E-mail/Skype:sales02@diffulpump.comTel/Whatsapp 8618858098438Wechat:+86 18858098438Facebook   Twitter   Google+   YouTube    Linkedin

Q：How to connect cables of a deep well submersible pump?  A：We will introduce the way of connecting cables of deep well pump ,submersible pump as follows:1. Strip off the outer jacket and primary insulating layer of the deep well pump cables, baring 35~40mm copper wire. Make the rubber close to the cable core into the shape of cone. Polish and clear away the oxide layer of the cable core. Use alcohol (hydrochloric acid is better) to clean the cable core, insulating layer to be wrapped and the layer of sheath, wait until they dry naturally in the air.2. Connecting the ends1) Power cable 2) polyvinyl chloride adhesive tape 3) self-adhesive butyl rubber tape 4) φ1mm copper wire 5) soldering tin 6) Outgoing cable3. Prepare a 500W electric soldering iron, rosin, soldering tin, 1 mm bare copper wire and insulating tape.4. Fasten the cable core evenly with bare cooper wire. Use the electric soldering iron to heat the tin and let the melted tin penetrate thoroughly and evenly into the fastened cable core.  Use a rasper to amend the welding part to make it flat, with no burrs or sharp edges. Wipe it clean with alcohol again, and let it dry naturally in the air.5. First, use self-adhesive butyl rubber tape to wrap it in three half-lapped layers gradually reaching toward the outside of the cable core. When wrapping, you must pull the adhesive tape to make it stretch to 200% larger. Use polyvinyl chloride adhesive tape to wrap again in three half-lapped layers, gradually reaching toward the outside of the cable core as before. Make sure the wrapped part is not shorter than 200mm.6. When connecting the three-core cable, you should keep the three connections separated from each other by some distance to prevent short circuit.7. The way of connecting double outgoing cables1) After connecting the cables, you should measure the insulation resistance between cable and the motor (not filled with water) remotely. The measured value is normally not lower than 150MΩ.2) When the motor has been filled with water, you should measure again the insulation resistance of motor windings remotely. The measured value should not be lower than 40MΩ.3) Power on the motor for less than 2 seconds to test its rotation direction. Mark the position and order of the phases.4) Now we begin to put the pump down into the well. During this process, you should keep measuring its insulation resistance remotely and observe the changing for fear that the insulation layer of the cable is scraped by the wall of the well. If you find the insulation resistance drops sharply below 0.5MΩ, you should pull the pumping unit up and identify and causes.  If no accidents happen, after putting the pump down into the well, you can start it up for a test run according to the steps we talked about previously. Our company's home pagehttp://www.diffulpump.com/ E-mail/Skype:sales02@diffulpump.comTel/Whatsapp 8618858098438Wechat:+86 18858098438Facebook   Twitter   Google+   YouTube    Linkedin

Q:What is the difference between stainless steel submersible pump and ordinary pump? A：1. Their materials are different. They are made of stainless steel and cast iron. Most parts of stainless steel submersible pumps are made of stainless steel, and the non-magnetic steel has no magnetism. The sound of tapping is very clear and crisp. However, the water pump made of cast iron is magnetic and the sound of knocking is dull. 2.Cast iron material can only be used to pump clean water, or general sewage, but stainless steel pump can be used in chemical industry, which is one of the advantages of stainless steel submersible pump, with corrosion resistance. 2019 GUANGZHOU Canton Fair                 TIME:Apr.15                 Booth:10.3 J 06        Our company's home pagehttp://www.diffulpump.com/ E-mail/Skype:sales02@diffulpump.comTel/Whatsapp 8618858098438Wechat:+86 18858098438Facebook   Twitter   Google+   YouTube    Linkedin

What to consider before buying A:Choosing an ideal solar powered water pump can be a daunting task especially to a first-time buyer, but it doesn’t have to be that way. The following considerations can be a good guide:The horizontal distance from the source of water to the desired location.The distance of uphill lift you require.How much velocity, in terms of gallons per minute, you require at the output end.The pipe diameter through which you will pump the water.The time of the year you will need to have your solar pump functioning.The location on the globe where you need to use the solar pump.The intended application, which could be well-pumping, livestock watering, pond aeration, swimming pull filling, or running a garden fountain. Welcome to contact us    2019 GUANGZHOU Canton Fair                 TIME:Apr.15                 Booth:10.3 J 06        Our company's home pagehttp://www.diffulpump.com/ E-mail/Skype:sales02@diffulpump.comTel/Whatsapp 8618858098438Wechat:+86 18858098438Facebook   Twitter   Google+   YouTube    Linkedin

Q:What if we don't have enough sunshine in our area? A：You can buy AC/DC dual-power solar pumps or lower-power pumps. Our company's home pagehttp://www.diffulpump.com/ E-mail/Skype:sales02@diffulpump.comTel/Whatsapp 8618858098438Wechat:+86 18858098438Facebook   Twitter   Google+   YouTube    Linkedin