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After-sales Service Related

  • Can I use mains or generator power to run the pump on cloudy day?

    The controller does not have the input for mains or generator power but the pump can be powered by means of a DC power supply that can supply the controller the correct voltage and amperage for the pump to operate efficiently.

    2022/4/18 14:03:01
  • How far can I install the solar panels from the pump?
    The Solar pumps we use work on low voltage so extending the cable too far will affect the performance and thicker cables need to be used to counter the volt drop.

    We would not recommend extending the cable more than 100-120m depending on the size and voltage of the pump. It's best to increase the cable between the controller and pump and keep the cables between the controller and panels as short as possible to get the best efficiency out of the pump.
    2022/4/18 11:51:16
  • Do these pumps use brushes like other DC pumps?

    The motors that we use are AC low voltage motors which means that they do not work with brushes at all. The only wearable parts on the motors are the bearings and mechanical seals like normal AC motors.

    2022/4/18 10:50:25
  • Should I buy insurance for good with sea shipping?

    We suggest our customer to insure the goods, to avoid any loss in transportation

    2022/4/7 16:55:15
  • What will be the discounts for my order?
    During special sales promotions, most products have discounts when certain order quantity is met. 

        For detailed discount information, please consult our sales representatives.
    2022/4/7 16:15:35
  • What is your delivery time? If I need products very urgent ,how can I get it?

    Shipped in 5-15 days after payment, and urgent order please check with our sales and who will offer a good delivery time for you according to your urgent request by express shipping.

    2022/4/2 15:56:52
  • How do you guarantee your quality?

    Firstly, we do quality test during every process. And we use production instruction cards, when one process finished , the work will be signed on the production instruction cards.Secondly, we will collect all comments on our products from customers in time. And try our best to improving quality all the time.

    2022/4/1 14:24:17
  • Can the speed of the solar pump be adjusted?

    Yes, our MPPT controller supports modifying the speed, if you need you can send me a video on how to modify the speed of the solar water pump,

    2022/3/31 15:09:45
  • Can I run this pump on an existing solar installation?

    It is possible to run the pump directly off of a battery bank. You will need to make sure that the voltage of the battery bank falls within the input range of the controller.

    2022/3/31 13:32:09
  • How do I determine the number of panels needed for my solar pump?

    The easiest way to determine this is to add 1.3 times on top of the pump wattage for minimum requirements and recommended would be 1.4 times. I.e. a 500w pump requires minimum 650w and recommended 700w to operate.

    2022/3/31 12:02:06
  • What is an open centrifugal pump?
    Centrifugal water pumps use centrifugal force to pressurize and move water from the inlet to the outlet. A rotating set of vanes (called an 'impeller') is spun by the pump shaft. As water is forced through the impeller, rotational energy is transferred from the impeller to the water, which gains velocity and pressure through the centrifugal force applied and is flung from the impeller. The volute (a spiral-shaped case) funnels the now-pressurized water to the outlet. Image below shows clockwise rotation as viewed from the motor mound.

    Ningbo Guanghan Solar Pump Industry is a factory specialized in manufacturing solar submersible pumps and solar surface pumps. The head office was established in 1989 in Daxi Town, Wenling City, the hometown of water pumps in China, and a branch factory was established in Jiangshan Town, Ningbo City in 2019. It is located near the highway intersection, very close to Ningbo Port and Shanghai Port, and the transportation is very convenient.

    2022/3/31 12:01:50
  • What is the permanent magnet synchronous motor

  • A permanent magnet synchronous motor (PMSM) uses permanent magnets embedded in the steel rotor to create a constant magnetic field. The stator carries windings connected to an AC supply to produce a rotating magnetic field. At synchronous speed the rotor poles lock to the rotating magnetic field. Permanent magnet synchronous motors are similar to brushless DC motors.
  • Because of the constant magnetic field in the rotor these cannot use induction windings for starting. These motors require a variable-frequency power source to start.
  • The main difference between a permanent magnet synchronous motor and an asynchronous motor is the rotor. Some studies seem to indicate that NdFeB permanent magnet synchronous motors are around 2 percent more efficient than the highest-efficiency (IE3) asynchronous motors—using the same stator laminations and similar variable-frequency speed controllers.
  • Permanent magnet motors have been used as gearless elevator motors since 2000.

  • Ningbo Guanghan Solar Pump Industry is a factory specialized in manufacturing solar submersible pumps and solar surface pumps. The head office was established in 1989 in Daxi Town, Wenling City, the hometown of water pumps in China, and a branch factory was established in Jiangshan Town, Ningbo City in 2019. It is located near the highway intersection, very close to Ningbo Port and Shanghai Port, and the transportation is very convenient.
  • 2022/3/31 12:01:32
  • What is your method of samples transportation?

    We ship samples by international express such as FEDEX, UPS, DHL, TNT, EMS, etc.

    2022/3/30 13:58:28
  • How about your capacity?

    We can produce 400-500pcs dc solar water pumps a day, which can be a good guarantee that we will deliver within the stipulated time.

    2022/3/30 13:29:29
  • What is your price advantage?

    Own our own solar pump factory, no more mark up and resale price.Aim at long-term cooperation, always offer our best price and best solution to you.

    2022/3/30 13:16:05
  • Which is better--a DC or an AC pump?

    The DC pump can directly use the DC power generated by the solar panel to run the water pump. Reduce the power loss in the conversion process. Therefore, the DC pump is more efficient and requires fewer solar panels. The DC pump also does not require an inverter to convert the direct current generated by the solar panel into alternating current. Reduced costs.


    2022/3/30 13:08:21
  • Can the speed of the solar water pump be adjusted?

    Yes, the controllers come standard with a speed adjustment dial whereby you can reduce the speed of the motor if needed.

    2022/3/30 11:19:41
  • Does COVID-19 affect shipping?

    Currently affected by COVID-19, air transport in many countries and regions has been suspended. Such as many countries in South America and Africa. It may also be returned or detained during shipping.

    Sea transport is temporarily not affected by COVID-19 and can be transported normally. If you want to buy a solar pump, please contact me first.

    2022/3/28 16:26:05
  • What should I do if there is a problem with the TPON water pump I purchased?

    If you encounter after-sales problems of TPON solar well pump kit, please contact me as soon as possible and take a video and photo of the water pump and controller for me. I will send the video and controller to our engineer for viewing, and our engineer will tell you how to pass Commissioning returns the pump to normal operation. If the pump part or controller is damaged, we will send you new parts free of charge.

    2022/3/28 15:46:21
  • How long is the warranty period for the TPON solar kit for water pump?

    We provide 18 months warranty for every TPON small solar water pump.

    2022/3/28 14:58:30
  • What is the difference between TPS, TPPC, TPSC series?
    TPS series are solar screw pumps. The characteristic of screw pump is high head and small flow. Suitable for domestic water supply.

    TPPC series are solar-powered plastic impeller solar deep well pumps. It is cost-effective, has a long service life, is more durable than a screw pump, and has a larger flow rate. However, the head is relatively small.

    TPSC series are solar submersible pumps with stainless steel impeller. Stainless steel impellers are more durable than plastic impellers, especially in waters with high sand content.
    2022/3/28 14:49:42
  • How Is Your Packing Method For Solar Pumps Kits?

    Our solar powered water pumps and controllers will be wrapped in bubble bags, and then put them in the wooden box together with the accessory bag. Our wooden box is shock-resistant and anti-drop.

    2022/3/28 14:37:32
  • Do you have any requirements for small solar powered water pump OEM service?

    We provide OEM service for customers free of charge. You only need to order more than 10pcs small solar powered water pump and we can provide OEM service for you. We will laser your exclusive brand on the motor and controller of the pump, but for wooden boxes, you can only use our conventional wooden boxes. If you order more than 200pcs solar water pumps, we will customize your exclusive wooden box for you, and we will print your exclusive brand logo on the wooden box.

    2022/3/28 14:33:52
  • What are the free accessories of TPON solar solar well pump system?
    TPON brushless solar water pump kit includes 1pcs solar pump, 1pcs solar water pump controller and some free installation parts. Free accessories includes : insulation tape, teflon tape, heat-shrinkable tube, screwdriver, screw and nut, connection terminal.
    2022/3/28 14:23:03
  • How can we to be your agent in my country?

    You can become our agent in your country as long as you reach our specified annual sales quantity.

    2021/5/17 15:23:15
  • Do I need to use an inverter?
    No need, our MPPT controller has a frequency conversion function to directly convert solar energy into energy for water pump work.
    2021/5/17 15:22:24
  • Are your solar pumps easy to install?
    After you received the pump, we will send you the installation drawing and video.
    2021/5/17 15:19:32
  • Can I use my own forwarder?
    Your shipping forwarders are also acceptable, we may charge some extra cost incurred with your shipping agent comparing to ours.
    2021/5/17 15:05:15
  • What will be discount for my order?
    We are a factory, so the more quantity is, the lower price is.
    2021/5/17 15:04:10
  • Can I get a free sample?
    we are a manufacturer specialized in kinds of solar powered pumps, DC solar well pumps, DC surface pumps. unfortunately, we can not offer our solar pump for free. but if your quantity reaches a certain amount, we can offer a free sample.
    2021/5/17 15:02:00
  • What is your product certificate?
    Our solar powered water pumps have obtained CE certification and ISO9001 certification.
    2021/5/17 15:00:10
  • How long can I get your reply after in send you inquiry?
    You can get a reply within 3-8 hours from Monday to Friday, and within 12 hours at weekend. If need urgent, please call us so we can reply soon after we phone communicated. The phone call is warmly welcome 24 hours a whole day.
    2021/5/17 14:59:04
  • How long is your solar powered pump lifetime?
    Pump lifetime mainly depends on motor lifetime, we have DC brush, brushless, coreless brushless motor For your choice, the pump and controller warranty is 1 year.
    2021/5/17 14:57:43
  • I cannot find the product I want on your website. Can you provide the product I need?
    Yes, pls tell us the product information, and then we will search for you.
    2021/5/17 14:56:01
  • How does your factory conduct quality control?
    Quality is very important and always be put in the first place. We insist one worker charge one process. Having our own Aluminum Die-casting Workshop and Plastic Injection Molding Workshop allow us easier to control the quality. Inspections of each step will be done during the production process.
    2021/5/17 14:55:05
  • What is your sample shipping method?
    We deliver goods by FEDEX, UPS, DHL, TNT, EMS and other international express delivery.
    2021/5/17 14:53:51
  • How to choose suitable solar water pump?
    Firstly we should know from you :
    What is the fluid? 
    Clean water(temperature), dirty water(temperature), particles,or slurry ? What is the flow and head? And the power?
    Other conditions from customer if possible: pump type, motor? 
    With complete information, then we selected the pump and feedback to you.
    2021/5/17 14:52:57
  • What is the delivery time?
    3-30 days after receiving your advanced deposit (according to the number of solar pumps you ordered).
    2021/5/17 14:50:18
  • Can OEM?
    Yes, welcome your OEM brand
    2021/5/17 14:48:30
  • Any MOQ?
    Trial sample order is OK.
    2021/5/17 14:46:40
  • What is the core advantage of TPON solar water pump?
    Stainless steel pump body: More environmental protection, Safer.
    100% Copper wire: Electrical conductivity is strong, use life is longer.
    High efficient bearing: Hardness, high resistance to wear
    New shaft: Using the latest 304# stainless steel shaft, have the smooth operation 
    Others: Using the food-grade oil, copper outlet and high-quality copper flat cable 
    2021/5/17 14:39:15
  • What is your price advantage?
    Own our own factory, no more mark up, and resale price.
    Aim at long-term cooperation, always offer our best price and best solution to you.
    2021/5/17 14:34:24
  • What payment methods are supported?
    The most time 30% deposit by T/T in advance, pay 70% balance when the products are finished. TT, L/C, Wechat, Ali-Pay.......
    2021/5/17 14:35:19
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