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Category: Product News

Professional engineer installing a RAFSUN multi-stage pump in a home water pressure boosting system, showing a realistic residential utility room setup with braided hoses, copper pipes, and a pressure tank, ideal for illustrating when to use a multi-stage pump for high-pressure applications in tall buildings and complex water systems.

When to use a multi-stage pump?

Struggling with low

Realistic RAFSUN multistage pump application image showing a professional engineer installing and checking a household multistage water pump in a residential environment. The pump features a modern compact design with visible inlet and outlet connections, pressure gauge system, and durable housing for high-head water transfer. This image represents the topic What is the formula for a multistage pump? by visually explaining multistage pump structure, pressure boosting performance, and home water supply installation.

What is the formula for a multistage pump?

Struggling to calcul

How to prime a multistage pump? A professional technician is priming a RAFSUN multistage water pump by filling the pump casing and suction line with water before start-up. The realistic residential outdoor scene shows the correct pump priming process to remove trapped air, prevent dry running, avoid overheating, and protect the impeller for safe, efficient, and long-lasting operation.

How to prime a multistage pump?

Struggling with a mu

Professional engineer (face not visible) inspecting a robust RAFSUN solar irrigation pump in a residential backyard setting, demonstrating the pump’s application in home irrigation systems. The image illustrates the context of preventing rapid pump cycling, reducing energy costs, and protecting pump longevity, addressing the question: Do I need a pressure tank for an irrigation pump? The scene emphasizes stable water pressure and system efficiency benefits of pairing a pressure tank with a RAFSUN irrigation pump.

Do I need a pressure tank for an irrigation pump?

Struggling with a pu

High-resolution product image of a black RAFSUN solar irrigation pump with a red branded panel displaying "RAFSUN SOLAR PUMP" and solar energy graphics, set against a clean white background. This image accompanies a comprehensive guide titled "How to size a water pump for irrigation," explaining critical concepts for optimal pump selection: avoiding undersized/oversized RAFSUN pumps to prevent energy waste and high power bills, calculating core metrics including required flow rate (GPM/m³/h) and Total Dynamic Head (TDH), and matching the pump to its Best Efficiency Point (BEP) for sustainable agricultural and residential irrigation performance.

How to size a water pump for irrigation?

Choosing the wrong i

An image of a blue-shirted gardener kneeling and adjusting a RAFSUN-branded solar-powered irrigation pump, with the pressure switch clearly visible and being calibrated, in a backyard setting. Does an irrigation pump need a pressure switch? The picture shows the importance of pressure regulation in optimal irrigation.

Does an irrigation pump need a pressure switch?

Struggling with your

RAFSUN centrifugal pump installed in a residential outdoor water supply system, with a professional engineer connecting stainless steel hoses beside a brick wall and garden area. This realistic application image shows where centrifugal pumps are most used, including water supply, irrigation, water treatment, and industrial fluid transfer systems that require efficient movement of low-viscosity liquids.

Where are centrifugal pumps most used?

Struggling to move l

RAFSUN centrifugal water pump in a realistic home utility room with a professional engineer inspecting the system during a dry running failure. The pump shows visible overheating and smoke effects, illustrating why you should never run a centrifugal pump without water. This image highlights the risks of dry running, including mechanical seal damage, overheating, internal component wear, and costly pump failure in residential water supply applications.

Can you run a centrifugal pump without water?

Worried about pump f

RAFSUN residential centrifugal pump installation in a home utility room, shown with a professional engineer inspecting the system without revealing the face. The realistic cutaway view illustrates how centrifugal pumps operate by using a rotating impeller to accelerate water, pushing the liquid outward through the pump casing and converting velocity into pressure for efficient household water circulation and boosting.

How do centrifugal pumps operate?

Unexplained pump fai

A natural, realistic home maintenance scene showing a professional engineer servicing a polished RAFSUN centrifugal water pump connected to white household PVC piping in a residential utility area. The engineer is turned away from the camera with no face visible, using a screwdriver to inspect the pump during a troubleshooting situation related to priming and unstable water flow. The metallic centrifugal pump is the clear focal point, with a softly blurred laundry and home background that reinforces a domestic application setting. This image visually represents the main disadvantage of a centrifugal pump: it cannot handle significant amounts of air or vapor well, which can cause loss of prime, difficulty self-priming, and inconsistent flow during operation.

What is a main disadvantage of a centrifugal pump?

Struggling with pump

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