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On the market today there are many types of water pumps with many different designs, types, functions, etc. So which pump is right for your needs? thtrangdai.edu.vn will advise you in the article below.

The most popular types of water pumps today

Water booster pump

A booster water pump is a type of pump used to increase the pressure of water circulating in the pipeline, making the water flow out of the taps more powerful and abundant.

The commonly used booster pump is an automatic pump. When the user opens any faucet to get water for use, the pump will automatically turn on and create pressure to push the water flow stronger to meet the user’s wishes. And when the user closes the faucet, the pump automatically turns off.

Booster pumps are used when water pressure is weak and cannot meet the family’s daily needs, especially hotels and restaurants that need to use water in large quantities.

Booster pumps are also used to increase the working efficiency of machines such as washing machines, solar water heaters, water heaters, etc.

High push water pump

High push water pumps are civil pumps, widely used in pumping water from dug wells or underground tanks to high tanks, pumping water for irrigation and production, and can also be used for pushing water. water to buildings with many floors. High booster pump can pump up to a height of over 40m.

High push water pump

This type of machine ensures stable water flow and can filter clean water to ensure the health of consumers.

Centrifugal water pump

Centrifugal water pumps are industrial hydraulic vane pumps, operating on the principle of centrifugal force, water is brought into the center of rotation of the impeller and, thanks to centrifugal force, is pushed to the edge of the impeller. . .

Centrifugal water pump

With a special structure, centrifugal water pumps have outstanding advantages such as very large capacity and little pipe vibration, so they are often widely used in the chemical industry.

Centrifugal pumps are used to pump and transport low viscosity liquids such as fresh water and sea water.

Centrifuges are used in systems that do not require high pressure head but need a large and even flow, typically cooling systems in cold rooms, fire protection, fire pumps or irrigation pumps. agriculture and horticulture industry.

Vacuum water pump

A vacuum water pump is a machine that can pump both water and air. Specifically, this line of small family water pumps has the ability to pump vacuum to a certain level and is used to pump clean water or other similar liquids but not corrosive chemicals.

Vacuum pumps

The efficiency of using vacuum water pumps is higher than other pump lines, this pump line can be used for both civil and industrial applications.

  • In households, vacuum pumps are used as high-lift pumps, sucking water from underground tanks or pipes and pushing it to an overhead tank.
  • In agriculture, vacuum pumps are used to suck wells, irrigate and serve other pump work.
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Criteria to know when choosing to buy a water pump

Pump capacity

Pump capacity determines strong or weak water intensity, so this is one of the important points to keep in mind when buying a water pump.

Maximum flow

Is the amount of water that the pump transports in a unit of time – calculated in m3/hour or liters/minute,…

Push Height

The height of the water level is usually recorded as H, some machines record it as Hmax, Total H, which means the height at which the machine can suck from the water surface, well, lake, tank, etc. This is the maximum height that the machine can reach. Transport water to the upper tank, vertically.

Normally, the pump does not bring the water to the height indicated on the machine but only reaches about 70%.

Water pump push height

A Panasonic water pump has a pushing height of 38m

Suction depth

Is the depth at which the pump can suck water from the water surface to the center of the pump impeller. You should place the device as close to the water surface as possible, because in reality the depth of use is often less than indicated on the device.

If conventional pumps pump at a distance of about 8-9 meters, the phenomenon of not being able to pump begins to appear. This is marked as the cavitation limit, with the presence of air bubbles. This basically affects the quality of the water pump.

Consulting on purchasing water pumps according to usage needs

Water pump for household use

1. Water pump for apartments, high-rise buildings

– Apartments and high-rise buildings have to bring water up, so people often use high-pressure water pumps.

High pump

– High-rise water pumps are mainly designed as vertical pumps, capable of quickly sucking and pushing water with a rotation speed of up to 2900 rpm. The most commonly used vertical pumps are brands such as Matra, Pentax, Saer, etc.

+ For 3-4 storey houses, the water flow according to normal needs is about 45 liters/minute. Houses with more floors have a flow rate that should be a little higher. Therefore, you should choose a high-pressure water pump with an average pressure head of 45m, capacity of about 200 W – 350 W. In this case, the Panasonic GP-350JA 350W water pump has a water flow of 45 liters/minute and a pressure head. 45 m will be most suitable.

+ For buildings with 2-3 floors, choose a high-pressure water pump with a capacity of about 125W. Like the Panasonic GP-129JXK water pump with a water flow of 30 liters per minute and a head of 39m will be suitable in this case.

+ For buildings with a height of 6 floors or more, a pump with a larger capacity will be needed, or a station pump may have to be used.

2. Choose a water pump for families with weak water sources

Booster water pumps are the right choice for families with weak water sources. Booster pumps help increase water pressure in pipes to help you regulate a stable water source for your home’s faucet system.

Panasonic booster pump

The booster pump is an advanced technology product with features such as integrated thermal relay, automatic shutdown of the machine when the body temperature is too high to ensure the machine’s longevity and user safety. The pump works on the principle of opening and closing the faucet, which is very convenient and efficient.

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In addition, many families often place washing machines, water heaters, etc. and water tanks on the same rooftop, or the position between the equipment and the water tank is equal, causing low water pressure. There is not enough water to supply the machine.

Therefore, you need to support more booster type household pumps for these devices. However, it is advisable to choose pump models with not too strong pressure because it may damage the equipment. Also in this case, mini booster pumps are also worth considering.

Mini booster pump

Currently on the market there are many manufacturers of booster pumps to choose from such as Wilo, Pentax, Panasonic, etc.

Water pump for agriculture

1. Pump in automatic irrigation system:

To choose a pump for an automatic irrigation system, we need to pay attention to the following criteria:

– Water flow to be watered: Depending on the garden area that needs to be watered, we choose a water pump that meets the water flow. Suppose we water a 1 hectare pepper with a Nelson R33 – green throat.

One hectare can be divided into 4 irrigations, each time 2.5 sao (2,500 m2). According to calculations, the irrigation flow for 1 hectare per hour is 72 m3. So 2.5 sao needs a flow of 18 m3/hour.

Automatic sprinkler irrigation

– Water pressure: Every irrigation device needs a certain level of pressure to work. Assume that the aforementioned Nelson R33 nozzle needs to provide a pressure level of 3.5 bar for optimal operation.

At the same time, the pressure loss on the pipeline system is 0.25bar. So the pump needs to create a pressure: 3.5bar + 0.25bar = 3.75 bar (equivalent to 37.5m head).

– Power source: If it is a single-phase power source (the power source we use for daily activities), the pump may only be able to run a maximum of 3 HP. There are some imported rocket pumps that can reach 10 HP running on single phase electricity. You can use a gasoline or diesel pump if the power source is not enough to operate a high-capacity pump.

Gasoline water pump

– Type of pump: There are many types of pumps such as rocket pumps, horizontal pumps, vertical pumps, etc. based on the flow and head (pressure) requirements, then look up the pump’s operation chart to see. then select the appropriate pump capacity.

–In case of oil pump, or pump without technical indicators: we can backtrack by using a combination of flow meter and pressure meter.

How to detect: Behind the flow meter, we install a drain valve to adjust different discharge levels. In front of the flow meter place the pressure gauge.

In the process of adjusting the drain valve, we observe the pressure gauge needle. When the pressure gauge shows 3.75 bar, stop, then observe the flow meter and determine how many m3 can be pumped in 1 hour, thereby determining how many pumps and how many times the pump will run. acreage.

To meet the above criteria, we should choose a specialized pump for irrigation with the following advantages:

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– Has large and stable flow with constant pressure head.

– Compact size, lightweight.

– Integrated thermal relay, automatically shuts off when the temperature is too high to avoid causing fire or explosion.

– Safe when operating.

– Large spray nozzle is convenient for watering plants.

– Simple flow adjustment.

In Vietnam market, irrigation pumps are imported by agents and commercial enterprises. Depending on needs and economic conditions, choose an Italian water pump (Pentax, Ebara, Zenit) or a Taiwanese water pump (NTP, APP, HCP) or a Chinese water pump (Lepono, CNP, Mastra). , Lucky Pro).

2. Water pump in livestock farming

In livestock farming, water pumps are often used to wash barns, pump wastewater, pump water in aquaculture, etc.

– Barn cleaning pump: To clean barns in livestock farms, you should choose high-pressure pumps. High-pressure pumps with high-pressure cleaning capabilities will help you clean the barn in the cleanest and tidiest way.

Turbochargers

Advantages of high pressure pumps for livestock farms:

+ Save water.

+ Strong water spray ability helps save time.

+ Compact and easy to use, simple structure, good quality.

+ Quiet operation without making noise.

+ Large water flow.

You can buy booster pumps of brands such as Panasonic, NTP, Pentax, Teco, … with good quality and affordable prices for you to choose from.

– Sewage pump:

Wastewater in livestock farming as well as wastewater in general often contains dirt, trash, etc. and acidic water environment causes strong corrosion, so specialized pumps must be used to pump and move liquid waste.

People often use submersible pumps made of stainless steel, or gray cast iron with high durability, good corrosion and oxidation resistance, limiting the influence of the surrounding environment on the operation of the machine.

Wastewater pump

Some types of submersible pumps such as: slurry pump, axial submersible pump, submersible pump, etc. These pumps are mostly designed with fairly compact structure, meeting standards and specifications. suitable for different purposes.

The cost of these products is high, but in return, the efficiency and durability are very high.

On the Vietnamese market today, the wastewater pump product line is very diverse and rich, with many different brands and models, and is increasingly improved in terms of functionality. The most prominent ones are the Tsurumi submersible wastewater pumps, Ebara pumps and Pentax pumps.

– Pump to discharge water in the field or in aquaculture:

In the rainy season or when you need to drain fields, drain ponds, lakes, etc. in aquaculture, you need a pump with a large water flow, pumping water quickly to avoid flooding and save time.

You can refer to some specialized pumps of Pentax, Lepono (LEO), NTP, …

The above article guides you to choose the right water pump for your needs, hopefully it will help you when you need to buy a water pump!

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