CQ type magnetic drive pump

CQ type magnetic drive pump (referred to as magnetic pump) is a new product that applies the working principle of permanent magnetic coupling to centrifugal pump. It has reasonable design, advanced technology, and features of full sealing, no leakage, and corrosion resistance. Its performance has reached the leading level of similar foreign products. The magnetic pump replaces the dynamic seal with a static seal, so that the flow-through parts of the pump are in a completely sealed state, which completely solves the problems of leakage, bubbling, and dripping that cannot be avoided by mechanical seals of other pumps. The magnetic pump uses corrosion-resistant, high-strength engineering plastics, corundum ceramics, and stainless steel as manufacturing materials, so it has good corrosion resistance and can protect the transported medium from contamination. Main materials and uses The magnetic pump has a compact structure, beautiful appearance, small size, low noise, reliable operation, and convenient use and maintenance. It can be widely used in chemical, pharmaceutical, petroleum, electroplating, food, national defense, scientific research institutions, metallurgy, dyes and other units to pump acid, alkali, oil rare and precious liquids, poison, volatile liquids, as well as circulating water equipment and filter matching. Especially for pumping leaky, flammable and explosive liquids, it is an ideal equipment to use this pump with explosion-proof motor.

CQ type magnetic drive pump model meaning
CQ type magnetic drive pump performance parameters table
Model No. Diameter (mm) Flow (m3/h) Head (m) NPSH (NPSH) R (m) Motor power (kW) Speed ​​(r/min)
Power supply voltage (V)
Inlet Outlet
14cq-5 14 10 1.2 5 6.0 0.12 2900 220/380
16cq-8 16 12 1.8 8 6.0 0.18 220/380
20cq-12 20 12 3 12 6.0 0.37 380
25cq-15 25 20 5.4 15 6.0 1.10 380
32cq-15 32 25 6.6 15 6.0 1.10 380
32cq-25 32 25 4.8 25 5.5 1.10 380
40cq-20 40 32 10.8 20 4.0 2.2 380 40cq-32 40 32
11.5 32 4.0 4 380
50cq-2 5 50 40 14.4 25 4.0 4 380
50cq-40 50 40 13.2 40 4.0 4 380 50cq-50
50 32 7.8 50 4.0 5.5 380
65cq-25 65 50 16.8 25 4.0 5.5 380
65cq-32 65 50 27 32 4.0 7.5 380
CQ type magnetic drive pump structure diagram
1 Pump casing 2 Static ring 3 Moving ring 4 Impeller 5 Seal ring 6 Partition plate 7 Isolation sleeve
8 Outer magnetic steel assembly 9 Inner magnetic steel assembly 10 Pump shaft 11 Shaft sleeve 12 Coupling frame 13 Motor 14

CQ type magnetic drive pump installation dimension table
Model a b c d e f g h j a k m n Machine base Screw hole p p1 q q1 φ φ Pipe connection
08cq-2 63 48 45 55 38 200 105 45 15 84 80 24 16 φ6 - - - - - - -
10cq-3 63 48 45 55 38 200 105 45 15 84 80 24 16 φ6 - - - - - -
14cq-5 90 71 95 107 53 270 120 56 16 130 130 37 18 φ7 - - - - - -
16cq-8 90 70 80 125 55 3 20 160 65 18 115 140 40 22 φ11 - - - - - -
20cq-12 100 80 105 130 59.5 340 160 73 18 130 160 65 26 φ12 - - - - - -
25cq-15 125 100 140 189.5 67.5 460 205 90 - 160 240 71.5 - φ12 75 65 100 90 120 10 Flange connection
32cq-15 125 100 140 189.5 67.5 460 205 90 - 160 240 71.5 - φ12 90 75 120 100 12 10
32cq-25 125 100 140 189.5 67.5 460 230 90 - 160 240 71.5 - φ12 90 75 120 100 12 10
40cq-20 140 120 155 235 75 545 220 100 - 180 290 78.5 - φ12 100 90 130 120 14 14
40cq-32 190 140 190 271 80 620 260 112 - 245 336 91 - φ12 100 90 130 120 14 14
50cq-25 190 140 190 271 80 620 260 112 - 245 336 91 - φ12 110 100 140 130 14 14
50cq-40 190 140 190 271 80 620 260 112 - 245 336 91 - φ12 110 100 140 130 14 14
65cq-25 216 140 200 305 90 695 300 132 - 280 350 91 - φ12 130 110 160 140 14 14
65cq-35 216 140 200 360 76 720 292 120 - 280 350 90 - φ12 130 110 160 140 14 14
80cq-35 254 210 - - - 890 160 - - - - - φ12 - - - - 14 14
80cq-50 254 210 - - - 890 160 - - - - - φ12 - - - - 14 14 Installation

and use

1. The magnetic pump should be installed horizontally, not vertically. The plastic pump body should not bear the weight of the pipeline. For special occasions requiring vertical installation, the motor must face upward.
2. When the suction liquid level is higher than the pump axis, open the suction pipe valve before starting. If the suction liquid level is lower than the pump axis, the pipeline needs to be equipped with a bottom valve.
3. The pump should be checked before use. The motor blades should rotate flexibly, without getting stuck or making abnormal sounds, and all fasteners should be tightened.
4. Check whether the motor rotation direction is consistent with the magnetic pump rotation direction mark.
5. After the motor starts, slowly open the discharge valve. After the pump enters the normal working state, adjust the discharge valve to the required opening.
6. Before the pump stops working, the discharge valve should be closed first, and then the suction pipe valve should be closed.
   Precautions for the use of CQ type magnetic drive pump
7. Because the cooling and lubrication of the magnetic pump bearings depend on the medium being transported, it is absolutely forbidden to run idly. At the same time, avoid the no-load operation caused by restarting after a power outage in the middle of the work.
8. If the transported medium contains solid particles, a filter screen should be added to the pump inlet: if it contains ferromagnetic particles, a magnetic filter should be added.
9. The ambient temperature of the pump during use should be less than 40°C, and the motor temperature rise should not exceed 75°C.
10. The medium being transported and its temperature should be within the allowable range of the pump material (see the attached table for details). The operating temperature of engineering plastic pumps is <60℃, the operating temperature of metal pumps is <100℃, the conveying suction pressure is not more than 0.2mpa, the maximum working pressure is 1.6mpa, the density is not more than 1600kg/m3, the particle size is not more than 30×10-6m2/s, and the liquid does not contain hard particles and fibers.
11. For the medium that is easy to precipitate and crystallize, it should be cleaned in time after use to drain the accumulated liquid in the pump. 6. After the magnetic pump runs for 500 hours, the wear of the bearing and the end face moving ring should be disassembled and inspected. If the gap between the bearing and the sleeve is greater than 0.51mm and the impeller axial movement is 1.52mm, the bearing and axial moving ring should be replaced.