What does the water pump mean?

A water pump is generally used to provide water or other liquid circulation, and its main parameters include power supply requirements, lift, flow rate, etc.

What does a water pump mean by several phases?

Water pumps can be divided into single-phase pumps and three-phase pumps. There is no such thing as a two-phase pump, and all those who say two-phase pumps are amateurs. Single-phase water pump is a water pump powered by single-phase power supply. Usually, AC 22v is taken from one phase of three-phase power supply, which is called single-phase water pump. A three-phase water pump is a water pump powered by a three-phase power supply. Also known as the 38v water pump.

what does the pump flow mean?

the amount of water delivered by the pump per unit time, that is, the pump flow. Generally, there are three time units: second, minute and hour. In China, the flow unit is the international metric unit, such as liter, milliliter, cubic meter, thousand cubic meters, etc., and different units are used according to different use environments.

what does the pump lift mean?

for example, if you have a well with a depth of 1m, the lift of your pump must be above 1m before it can be used normally.

what does the pump model mean?

The model of the water pump represents the structural characteristics, working performance and the nature of the conveyed medium.

What are the suction range and lift of the water pump?

The suction range is also called "maximum self-priming height" (which can also be understood as "self-priming degree"). That is, the maximum height (the vertical distance between the pumping port of the pump and the liquid level to be pumped) that the micro-pump can automatically suck up water without water diversion.

when the general water source is lower than or equal to the placement position of the pump, it is necessary for the pump to have self-priming ability. For example, when traveling outdoors, it is necessary to extract water from the river, and it is best to use a micro-pump with self-priming ability (it is impossible for people to add some water to the inlet pipe before running into the river). Or the pumped liquid is corrosive, and it is inconvenient to add water.

for example, there is a kind of water pump, the model is called BSP series, which is not big, but the nominal suction range can reach 4 meters, and it can indeed reach 4 meters without water diversion, which is considered to be relatively high among micro pumps.

among the micro pumps, not all pumps have self-priming ability ("suction range").

some centrifugal pumps have no self-priming ability, so it is necessary to add water for the first use. Although some micro-pumps also have self-priming ability, there is a gap between the target "suction range" and the vertical height at which water can be pumped under the condition that the water inlet pipe is full of air, and it may even be less than half. Therefore, when selecting the pump, the suction range is an important parameter.

the lift of a lift pump refers to the height at which the pump can lift water, usually expressed by h, and the single float is m .. The lift of centrifugal pump is based on the center line of impeller and consists of two parts. The vertical height from the center line of the pump impeller to the water surface of the water source, that is, the height at which the pump can suck up the water, is called the suction lift, which is referred to as the suction stroke; The vertical height from the center line of the pump impeller to the water surface of the outlet pool, that is, the height at which the pump can lift the water pressure, is called the water pressure lift, which is referred to as the pressure stroke for short. That is, pump head = suction head+water pressure head. It should be pointed out that the head marked on the nameplate refers to the head that can be generated by the pump itself, and it does not include the loss head caused by frictional resistance of pipeline water flow. When selecting water pump, attention should not be ignored. Otherwise, there will be no water pumping.

what does the lift of the pump mean?

head H(m)

the head of centrifugal pump, also known as the head of the pump, refers to the energy obtained by the single weight fluid through the pump.

the lift of the pump depends on the structure of the pump (such as the diameter of the impeller, the bending of the blades, etc., and the speed. At present, the head of the pump can not be accurately calculated theoretically.

what does IP stand for in the water pump?

IP(INGRESS PROTECTION) protection level system was drafted by IEC (International Electrotechnical Mission). The lamps are classified according to their dustproof and moisture-proof characteristics. The foreign objects mentioned here, including tools and people's fingers, must not touch the live parts in the lamps to avoid electric shock. The IP protection level is composed of two numbers. The first number indicates the level of keeping lamps away from dust and preventing foreign objects from invading. The second number indicates the tightness of lamps against moisture and water invasion. The bigger the word Lou, the higher the protection level.

the first mark is digital protection, which means that

has no protection and no special protection for people or things outside

1 prevents solid objects larger than 5mm from invading and prevents human bodies (such as palms) from accidentally touching the parts inside the lamp. Prevent foreign objects with larger size (diameter greater than 5mm) from invading.

2 prevent the invasion of solid objects larger than 12mm, prevent people's fingers from touching the parts inside the lamp, and prevent foreign objects with medium size (12mm in diameter) from invading.

3 prevent solid objects larger than 2.5mm from invading, and prevent tools, wires or similar small details with a diameter or thickness larger than 2.5mm from invading and contacting the parts inside the lamp.

4 prevent solid objects larger than 1.mm from invading, and prevent tools, wires or similar small details with a diameter or thickness larger than 1.mm from invading and contacting the parts inside the lamp.

5 dustproof can completely prevent foreign objects from invading. Although it can't completely prevent dust from entering, the amount of invading dust will not affect the normal work of lamps.

6 dustproof completely prevents foreign objects from invading and dust from entering.

the second symbol is digital protection, which means

has no protection, and there is no protection

1 prevents dripping water from invading vertically dripping water (such as condensed water), which will not cause harmful effects on lamps.

2 dripping water can still be prevented when the lamp is tilted to 15 degrees from vertical, and dripping water will not have harmful effects on the lamp

3. Prevent sprayed water from invading the rain, or prevent water sprayed in the direction with an included angle less than 6 degrees from entering the lamp and causing damage.

4 prevent splashing water from invading, and prevent splashing water from all directions from entering the lamps and causing damage.

5 prevent the injected water from invading, and prevent the water injected by the nozzle from all directions from entering the lamp and causing damage.

6 prevent big waves from invading the lamps installed on the deck, and prevent them from entering and causing damage due to the invasion of big waves.

7 prevent water from invading when soaking. When the lamp is immersed in water for a certain time or the water pressure is below a certain standard, it can be ensured that it will not be damaged due to water ingress.

8 prevent water from invading when sinking. The lamps will sink indefinitely, and it can be ensured that they will not be damaged due to water ingress under the specified water pressure.

What does the lift of the water pump mean?

The water pump lifts the water from the water surface to the height of the highest point. If the submersible pump works below the water surface, the calculation of the lift should still be based on the water level, not the place where the water pump dives.