How to choose the right water pump for the fish tank? How to choose the water pump size?
First, let's compare the advantages and disadvantages of AC water pumps and variable frequency water pumps:
1. In terms of price, AC is cheap/variable frequency water pumps are expensive.
2. A 100W AC pump 3000L, but a DC variable frequency water pump only needs 30W, saving 70W, and saving 650 degrees of electricity in one year.
3. DC power is far lower than the safe voltage of 36V or less for 12/24V water pumps, and AC power is 220V. If there is a leakage, the variable frequency water pump is very safe to use.
4. The silent level of DC variable frequency water pumps can reach below 20dB, while AC water pumps are generally greater than 40dB.
In general, DC frequency conversion is expensive, but in terms of long-term and various advantages, the fish tank water pump should choose a variable frequency water pump. The key is power saving, quietness, and safety
Again, how to choose a fish tank water pump, how to choose a water pump according to the size of the fish tank:
Comparison of the flow rate that can pass through the fish tank water pipe under the condition of aquarium lift:
1. In terms of price, AC is cheap/variable frequency water pumps are expensive.
2. A 100W AC pump 3000L, but a DC variable frequency water pump only needs 30W, saving 70W, and saving 650 degrees of electricity in one year.
3. DC power is far lower than the safe voltage of 36V or less for 12/24V water pumps, and AC power is 220V. If there is a leakage, the variable frequency water pump is very safe to use.
4. The silent level of DC variable frequency water pumps can reach below 20dB, while AC water pumps are generally greater than 40dB.
In general, DC frequency conversion is expensive, but in terms of long-term and various advantages, the fish tank water pump should choose a variable frequency water pump. The key is power saving, quietness, and safety
Again, how to choose a fish tank water pump, how to choose a water pump according to the size of the fish tank:
| Fish tank size | Water pipe | Pump selection |
| 60L | 20 caliber | 3000L |
| 25 caliber | ||
| 80-90L | 20 caliber | 5000L |
| 25 caliber | ||
| 120L | 25 caliber | |
| 32 caliber | ||
| 25-caliber double water pipe | Dual Pump 3000 | |
| 150L | 25-caliber double water pipe | Dual Pump 5000L |
| 32-caliber double water pipe | Dual Pump 8000L | |
| 32-caliber single water pipe | 12000L | |
| 40-caliber single water pipe | ||
| 200L | 32-caliber double water pipe | Dual 12000 water pumps |
| 40-caliber single water pipe | ||
| Fish tank size calculation method: length*width*height | ||
Comparison of the flow rate that can pass through the fish tank water pipe under the condition of aquarium lift:
| 20 tubes | 3000L/H |
| 25 tubes | 5000L/H |
| 32 tubes | 8000L/H |
| 40 tubes | 11000L/H |
| Flow rate = unit cross-sectional area * flow rate Unit cross-sectional area is the inner diameter of the pipe, and the flow rate is determined by the head. The head of the fish tank pump is about 5M, and the heads of 12000 and 5000 are about 5M. So when the pressure is blocked, the flow rate will increase but not too much. So there is not much difference between using 25 tubes for 12000 and 25 tubes for 5000L. On the contrary, using 25 tubes for 12000 will seriously block the pressure, causing resonance noise |
|
| Of course, there will be some improvement when a large pump is connected to a small pipe, but the improvement is not significant! For example: 12000L connected to 32 pipes can only be increased to about 9000, and 40 pipes can reach 12000L, 8000 Using 25 pipes can only be about 5000, and using 32 pipes can only be 8000. |
|
| Misconception: Many people think that if you use 25 tubes for 12,000, it is 12,000. In fact, this is wrong. If you use 25 tubes for 12,000, the flow rate is only about 6,000, because all of it is lost. |
|