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Specifications:
Model: DC40E-1250
Material: PA66+Glass fiber
Power consumption: 13.2W
Rated voltage: 12V
Rated current: 1.1A
Max flow rate: 8.3L/MIN (2.2G/MIN)
Max static head: 5m (16ft)
Diameter of inlet: outside-12.4mm,inside-0.88mm
Diameter of outlet: outside12.4mm,inside-0.64mm
Noise: <35dB
Waterproof level: IP68
Lifespan: More than 30,000hrs
Power supply: DC electric source (bared wire)
Driving method: Brushless, Magnetic
Max working temperature: 60°C/172F
Item dimension: 81*65*48mm
Note:
1. Working at rated voltage (DC12V/1.1A ). The positive pole is red wire, the negative pole is black wire/blue wire.
2. This pump is centrifugal pump, it can't vent the air automatically, so it must be operated by submersible installation. (If outside water installation, you should make sure it is installed below the liquid surface)
3. When blocking, long-running is not allowed.
4. Preventing any hard particles entering the pumps.
How to Choose pump:
1. Make sure the working voltage, current, head and flow. The Max head means the static head. The pump can lift to the max height when there is no flow. If you want special flow at special height, you must choose more higher head than the height you want to pump;
2. Make sure the dimension (threaded interface or not, the direction and diameter of outlet and inlet);
3. Working environment (temperature and medium);
4. Other functional requirements, such as time control, motion control, pressure control, flow control, and speed adjustment.
Package includes:
1 * Water pump
Model: DC40E-1250
Material: PA66+Glass fiber
Power consumption: 13.2W
Rated voltage: 12V
Rated current: 1.1A
Max flow rate: 8.3L/MIN (2.2G/MIN)
Max static head: 5m (16ft)
Diameter of inlet: outside-12.4mm,inside-0.88mm
Diameter of outlet: outside12.4mm,inside-0.64mm
Noise: <35dB
Waterproof level: IP68
Lifespan: More than 30,000hrs
Power supply: DC electric source (bared wire)
Driving method: Brushless, Magnetic
Max working temperature: 60°C/172F
Item dimension: 81*65*48mm
Note:
1. Working at rated voltage (DC12V/1.1A ). The positive pole is red wire, the negative pole is black wire/blue wire.
2. This pump is centrifugal pump, it can't vent the air automatically, so it must be operated by submersible installation. (If outside water installation, you should make sure it is installed below the liquid surface)
3. When blocking, long-running is not allowed.
4. Preventing any hard particles entering the pumps.
How to Choose pump:
1. Make sure the working voltage, current, head and flow. The Max head means the static head. The pump can lift to the max height when there is no flow. If you want special flow at special height, you must choose more higher head than the height you want to pump;
2. Make sure the dimension (threaded interface or not, the direction and diameter of outlet and inlet);
3. Working environment (temperature and medium);
4. Other functional requirements, such as time control, motion control, pressure control, flow control, and speed adjustment.
Package includes:
1 * Water pump
- MAX lift height: 5m/16ft
- MAX flow rate: 500L/H 132G/H
- Submersible installation and entirely waterproof
- Max working temperature: 60°C/172F
- High efficiency, low consumption, low noise
ZKSJ DC 12V 1.1A 13.2W Brushless Magnetic Drive Centrifugal Submersible Oil Water Pump 500L/H 5M/16ft DC40E-1250
- Brand: ZKSJ
- Product Code: DC 12V
- Availability: In Stock
Dynamic Head
The effect of the Earths gravity on the "lift" or head pressure is fairly simple; for every vertical foot of distance the pump moves the water you are adding one foot of head pressure so the ratio is a 1:1 ratio. The effects of the friction, caused by water as it travels through your hose or pipes, on the total head pressure is a little more difficult to calculate especially as there are slight variations in pipe friction in different hose materials and the smoothness of the inner bore. Basically. for every ten feet of pipe through which the water has to travel travel horizontally will contribute 1 foot of head height; the ratio of the pipe friction loss is a 10:1 ratio.Plumbing fixtures and bends and corners in your hose also increase the total head you must calculate to ensure the proper final volume from your pump. Every corner with a 90 degree elbow in your plumbing will add 1 foot of head pressure with a 1:1 ratio. 45 degree elbows, tees and even insert couplers can all have an impact on the final flow.
If you install a pump 40 feet away from the top of your waterfall which is 6 feet above the pump and the tubing is a single run of 40 feet horizontally then you add 4 feet of head for the tubing length (the 10:1 ratio) to the 6 foot differnetial between the pump location and the final height of the waterfall so your final total dynamic head calculation would be 10 feet. This means your final volume of water flow in this water feature or application would be the volume of flow on the performance curve that equaled the gallons per hour at 16 feet. This volume will certainly be much less than the initial volume the pump can move at an open flow or a zero head.
If in the above example your 40 feet of horizontal tubing run also required 3 elbows of 90 degrees then an additional 3 feet of theoretical head would be added and your final flow result would be at 19 feet on the performance curve of the pump. In this example you would want to choose a pump that has the desired GPH rating at 9 feet of head pressure. Tubing size is also an important factor in accounting for head pressure loss, in general you should never reduce the diameter of the tubing below what the output size of the pump is, this will drastically increase head pressure, and reduce pump performance. For maximum pump performance, using the largest tubing that is practical is the best choice. A best practice is to use a hose with an inner diameter that is the same as your pumps outlet fitting.