CQZ series magnetic self-priming pump replaces dynamic seal with static seal, so that the flow parts of the pump are in a completely sealed state. The pump body and flow parts are made of corrosion-resistant stainless steel. It has the functions of CQ type magnetic drive pump and is self-priming, without the need for foot valve and irrigation water.
MaximumFlow :
100m³/hMaximumHead :
50mMaximumPower :
18.5KwTemperature :
140℃Material :
304,316LFlange Standard :
DN standard or ASME B16.5 class 150, RFconvex flangeOrder(MOQ) :
1Color :
CustomizableCQZ Series Stainless Steel Magnetic Self-Priming Pump Working Principle
The CQZ magnetic self-priming pump adopts the structure of an external mixing axial return pump body. The pump body consists of a suction chamber, a liquid storage chamber, a volute, a reflux hole, a gas-liquid separation chamber, etc. After the pump is started, under the action of centrifugal force, the remaining liquid in the suction chamber and the air in the liquid inlet pipeline are stirred into a gas-water mixture by the impeller. The mixture enters the gas-liquid separation chamber through the volute. As the speed slows down, the gas and water are separated, the air is discharged from the pump outlet, and the liquid returns to the pump through the return hole. After multiple cycles, the air in the liquid inlet pipeline is exhausted, so that a certain vacuum is formed in the pump, achieving the effect of self-priming.
Design Features
Applications
| Model |
Flow (m³/h) |
Head (m) |
Power (kw) |
Inlet*Outlet (mm) |
Npsh (m) |
EFF (%) |
Self-priming Height (m) |
| CQZ20-15-110 |
3 |
12 |
0.37 |
20*15 |
4 |
38 |
4 |
| CQZ20-20-115 |
6.6 |
15 |
1.1 |
20*20 |
4 |
45 |
4 |
| CQZ32-25-115 |
6.6 |
15 |
1.1 |
32*25 |
4 |
47 |
4 |
| CQZ32-25-145 |
6.6 |
25 |
1.1 |
32*25 |
4 |
42 |
4 |
| CQZ40-32-132 |
10.8 |
20 |
2.2 |
40*32 |
4 |
52 |
4 |
| CQZ40-32-160 |
10.8 |
32 |
4 |
40*32 |
4 |
50 |
4 |
| CQZ50-40-145 |
14.4 |
25 |
4 |
50*40 |
4 |
54 |
4 |
| CQZ50-40-160 |
13.2 |
32 |
4 |
50*40 |
4 |
48 |
4 |
| CQZ65-50-145 |
16.8 |
25 |
5.5 |
65*50 |
4 |
58 |
4 |
| CQZ65-50-160 |
27 |
32 |
7.5 |
65*50 |
4 |
62 |
4 |
| CQZ80-60-160 |
50 |
25 |
11 |
80*60 |
4 |
67 |
4 |
| CQZ100-80-160 |
100 |
32 |
18.5 |
100*80 |
4 |
70 |
4 |
WHY CHOOSE US?
FAQ
1. How does a self-priming pump work?
A self-priming pump works by initially mixing air and water in its casing to create a vacuum. This vacuum draws more water into the pump, allowing it to push the air out through the discharge. Once all the air is expelled, the pump continues to operate as a regular centrifugal pump, moving water efficiently. This process allows the pump to restart and regain prime automatically if it loses prime during operation.
2.Why are centrifugal pumps not self-priming?
Centrifugal pumps are not self-priming because they rely on the continuous flow of liquid to operate. If air enters the pump, it disrupts the flow and prevents the pump from creating the necessary vacuum to draw in more liquid. Without liquid in the pump casing, centrifugal pumps cannot generate the suction needed to prime themselves, which is why they need to be manually primed or use external priming methods before operation.
3.What is the depth of a self-priming pump?
The depth, or maximum suction lift, of a self-priming pump typically ranges from 15 to 25 feet (4.5 to 7.5 meters), depending on the pump's design and specifications. This is the maximum vertical distance from the water source to the pump at which it can still effectively prime and draw liquid.
4.What pumps do you mainly produce?
Magnetic Pump; Centrifugal Pump; Self-priming Pump; Submersible Pump; Slurry Pump; Fluoroplastic Pump; Metal pump
5.What is the maximum suction lift of a self priming pump?
The maximum suction lift of a self-priming pump is typically around 25 feet (7.5 meters) under ideal conditions. This is the vertical distance the pump can lift water from the source to the pump inlet. The actual suction lift can be affected by factors like the liquid's properties, temperature, and the pump's condition.
The flow parts of FZB fluoroplastic self-priming pump are all made of fluoroplastics, and it has self-priming function. The self-priming height can be determined within 2 to 4 meters according to the density of the medium. It is the best choice to replace the bulky submersible pump.
Details
ZCQ fluorine-lined magnetic self-priming pump fully combines the advantages of magnetic pump and self-priming pump. It is not only suitable for suction conditions, but also because of the special pump cavity design, it can withstand short-term vacuum and prevent drying, and is more suitable for raw material unloading conditions.
Details
CQZ series magnetic self-priming pump replaces dynamic seal with static seal, so that the flow parts of the pump are in a completely sealed state. The pump body and flow parts are made of corrosion-resistant stainless steel. It has the functions of CQ type magnetic drive pump and is self-priming, without the need for foot valve and irrigation water.
Details
Shankou Road, Jingxian Economic Development Zone, Xuancheng City, Anhui Province
jade@changyupump.com
+86 -13651913727
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