Product Description
Model Code Explanation
Product Description
CQF fluoroplastic magnetic pump wetted parts are made of reinforced polypropylene by injection molding, which significantly improves the pump’s corrosion resistance level and service range. It can withstand most organic and inorganic acids, alkalis and salts, and is also suitable for outdoor atmospheric exposure. It has excellent resistance to stress corrosion cracking.
It is an ideal sealless pump for conveying corrosive media.
Structure Diagram
|
No.
|
Part name
|
No.
|
Part name
|
|
1
|
Shaft sleeve
|
6
|
Rotary ring
|
|
2
|
Inner magnetic assembly
|
7
|
Pump shaft
|
|
3
|
Containment shell
|
8
|
Stationary ring
|
|
4
|
Outer magnetic assembly
|
9
|
Thrust ring
|
|
5
|
Pump casing
|
10
|
Support frame
|
Performance Parameters
|
Model
|
Port size (mm)
|
Flow
(m³/h) |
Head
(m) |
NPSHr
(m) |
Motor power
(kW) |
Speed
(r/min) |
Power supply voltage
(V) |
|
|
Inlet
|
Outlet
|
|||||||
|
10CQF-3
|
10
|
8
|
0.9
|
3
|
7.8
|
0.010
|
2900
|
220
|
|
14CQF-5
|
14
|
10
|
1.2
|
5
|
7.0
|
0.12
|
2900
|
220/380
|
|
16CQF-8
|
16
|
10
|
1.8
|
8
|
6.0
|
0.18
|
2900
|
220/380
|
|
20CQF-12
|
20
|
15
|
2.5
|
12
|
6.0
|
0.37
|
2900
|
220/380
|
|
25CQF-15
|
25
|
20
|
5.4
|
15
|
5.0
|
1.1
|
2900
|
380
|
|
32CQF-15
|
32
|
25
|
6.5
|
15
|
6.0
|
1.1
|
2900
|
380
|
|
32CQF-25
|
32
|
25
|
4.8
|
25
|
5.5
|
1.1
|
2900
|
380
|
|
40CQF-20
|
40
|
32
|
10.8
|
20
|
3.5
|
2.2
|
2900
|
380
|
|
50CQF-25
|
50
|
40
|
12.5
|
25
|
3.5
|
3.0
|
2900
|
380
|
|
50CQF-32
|
50
|
40
|
12.5
|
32
|
3.5
|
4.0
|
2900
|
380
|
|
65CQF-32
|
65
|
50
|
25
|
32
|
4.0
|
7.5
|
2900
|
380
|
Installation and Operating Instructions
1. The CQF fluoroplastic magnetic pump should be installed horizontally and is not suitable for vertical installation. The plastic pump must not bear the weight of the piping. For special vertical installations, the motor must face upward.
2. When the suction liquid level is higher than the pump shaft centerline, simply open the suction pipeline valve before starting. When the suction liquid level is lower than the pump shaft centerline, the pipeline must be fitted with a foot (bottom) valve.
3. Before operation, check the pump: the motor fan should rotate freely, without jamming or abnormal noise, and all fasteners must be tightened.
4. Check whether the motor rotation direction is consistent with the rotation arrow marked on the magnetic pump.
5. After the motor is started, slowly open the discharge valve. When the pump enters normal operating condition, adjust the discharge valve to the required opening.
6. Before stopping the pump, first close the discharge valve, and then close the suction pipeline valve.
Notes
1. Cooling and lubrication of the CQF fluoroplastic magnetic pump bearings rely on the conveyed medium, so dry running is strictly prohibited. Avoid restarting under load after a power outage if it would cause the pump to run without liquid.
2. When the suction liquid level is higher than the pump shaft centerline, simply open the suction pipeline valve before starting. When the suction liquid level is lower than the pump shaft centerline, the pipeline must be fitted with a foot (bottom) valve.
3. During operation, the ambient temperature should be less than 40 °C and the motor temperature rise must not exceed 75 °C.
4. The conveyed medium and its temperature must be within the limits permitted by the pump materials. For engineering plastic pumps, the operating temperature should be less than 60 °C; for metal pumps, the operating temperature should be less than 100 °C. Suction pressure must not exceed 0.2 MPa, working pressure is 1.6 MPa, medium density must not be greater than 1600 kg/m³, and kinematic viscosity must not exceed 30 × 10-6 m²/s. The liquid must be free of hard particles and fibers.
5. For media that are prone to precipitation and crystallization, the pump should be flushed and drained in time after use to remove residual liquid.
6. After 500 hours of operation, check the wear of the bearings and the end-face rotary ring. If the clearance between the bearing and the shaft sleeve is greater than 0.5–1 mm, or the impeller axial movement is 1.5–2 mm, the bearings and rotary ring should be replaced.
OEM & Custom Solutions
Chaodun Pump provides OEM/ODM customization for CQF magnetic pumps, including flow, head, voltage, and material configurations (PVDF, PTFE, RPP). All models meet ISO9001 and CE standards and are suitable for chemical and industrial export applications.
FAQs for Oversea Buyers
Q1: What is the CQF Fluoroplastic Magnetic Pump used for?
It is used for transferring acids, alkalis, and other corrosive chemical liquids.
Q2: What materials are used for the pump?
The wetted parts are made from reinforced polypropylene (RPP) for corrosion and wear resistance.
Q3: Can it run dry?
No, bearings are lubricated by the conveyed medium. Dry operation will damage components.
Q4: What’s the maximum operating temperature?
Up to 60°C for plastic pumps and 100°C for metal versions.
Q5: Is it suitable for outdoor installation?
Yes, it is resistant to stress corrosion cracking and atmospheric exposure.
Q6: What industries use the CQF pump?
Chemical, electroplating, environmental, pharmaceutical, and water treatment industries.
Q7: Does Chaodun Pump offer OEM customization?
Yes, OEM/ODM options include customized power, voltage, and materials for export orders.