CQ-D Stainless Steel Magnetic Pump: Classification and Features

CQ-D stainless steel magnetic pump is a type of seal-less magnetic drive pump, which is widely used in various industries for its excellent performance and features. In this article, we will discuss the classification and features of CQ-D stainless steel magnetic pump.

Classification

CQ-D stainless steel magnetic pump can be classified into two types based on the material of the impeller and casing: 304 stainless steel and 316 stainless steel. Both types of pumps have their own advantages and are suitable for different working conditions.

Features

Seal-less Design

CQ-D stainless steel magnetic pump adopts a seal-less design, which eliminates the need for traditional sealing methods such as mechanical seals and packing seals. This design reduces the risk of leakage and ensures a long service life.

Magnetic Drive

The pump is driven by a magnetic coupling, which uses a magnet to transfer torque from the motor to the impeller. The magnetic coupling eliminates the need for a direct mechanical connection between the motor and the impeller, which further reduces the risk of leakage.

High Efficiency

CQ-D stainless steel magnetic pump has a compact structure, high efficiency, and low noise. It is suitable for use in various industrial applications, such as chemical processing, pharmaceutical manufacturing, and food processing.

Easy Maintenance

The seal-less design and magnetic drive of CQ-D stainless steel magnetic pump make it easy to maintain. There are no mechanical seals or packing seals that require regular maintenance or replacement, which saves time and cost.

Corrosion Resistance

The pump is made of high-quality stainless steel material, which has excellent corrosion resistance and can be used to transport a variety of corrosive liquids.

In conclusion, CQ-D stainless steel magnetic pump is a reliable and efficient pump that is suitable for various industrial applications. Its seal-less design, magnetic drive, corrosion resistance, high efficiency, and easy maintenance make it an ideal choice for many industries.

Corrosion Resistance For Reference

Medium name	Concentration (%)	Polypropylene		Concentration (%)	ABC
		25℃	50℃		20℃	60℃
Sulfuric acid	60	√	√	〈30	√	X
Nitric acid	25	√	√	20	√	〇
Hydrochloric acid	〈36	√	√	〈38	√	√
Hydrofluoric acid	35	√	√	40	√	X
Acetic acid	〈80	√	√	〈20	√	〇
Sodium hydroxide	100	√	√	√	√	√
Potassium dichromate	25	√	√	√	√	√
Bromine water	√	X	X	√	〇	X
Ethyl alcohol	√	√	〇	〈50	√	√
Acetone	√	√	〇	10	〇	√
Tetrachloroethane	√	〇	√	√	〇	X
Freon 22	√	√	√	√	〇	〇
Bleaching liquid	CL13%	√	√	CL12.5%	〇	〇
Electroplate liquid	√	√	√	√	〇	X
Photographic solution	√	√	√	√	√	√
Photographic solution	√	ⅴ	√	√	ⅴ	ⅴ
Sulfuric acid	〈5	√	X	√	ⅴ	ⅴ
Nitric acid	70	ⅴ	√	√	ⅴ	ⅴ
Hydrochloric acid	√	X	√	√	ⅴ	ⅴ
Hydrofluoric acid	√	X	√	0~100	X	√
Acetic acid	〈20	√	√	√	ⅴ	ⅴ
Sodium aminooxide	70	√	√	√	〇	X
Potassium dichromate	40~60	ⅴ	ⅴ	10~20	ⅴ	ⅴ
Bromine water	√	〇	√	√	ⅴ	ⅴ
Ethyl alcohol	√	ⅴ	√	√	ⅴ	ⅴ
Acetone	√	ⅴ	ⅴ	√	ⅴ	√
Tetrachloroethane	50	ⅴ	ⅴ	√	ⅴ	ⅴ
Freon 22	√	ⅴ	√	√	ⅴ	ⅴ
Bleaching liquid	√	X	√	√	ⅴ	ⅴ
Electroplate liquid	√	√	√	√	ⅴ	ⅴ
Photographic solution	√	ⅴ	√	√	ⅴ	ⅴ

Symbol Description

V-is excellent, √ is good, and O is available, but the corrosion is obvious. X-serious corrosion, not applicable.

Scope of application CQ-D stainless steel magnetic pump is suitable for petroleum, chemical, pharmaceutical, smelting, electroplating, environmental protection, food, film and television printing, water treatment, national defense and other industries. It is an ideal equipment for conveying flammable, explosive, volatile, toxic, rare and precious liquids and other various corrosive liquids. It is suitable for conveying liquid without hard particles and fibers with suction pressure not exceeding more than 0.2MPa and the, maximum working pressure 1.6Mpa, antemperature no more than 100 ℃, density no more than 1600kg / m3, viscosity no more than 30 × 10-6m2 / s.

Instructions

Installation and commissioning instructions for CQ-D stainless steel magnetic drive pump

CQ-D stainless steel magnetic pump should be installed horizontally instead of being upright. The plastic pump body should not bear the weight of the pipeline. For special requirements of vertical installation, the motor must face upward.

When the suction liquid level is higher than the pump axis line, you should open the suction pipe valve before it is starting. If the suction liquid level is lower than the pump axis line, the pipe should be equipped with a bottom valve.

CQ-D stainless steel magnetic drive pump should be inspected before use. The wind blade of the motor should rotate flexibly without clamping and abnormal sound. All fasteners should be tightened.

Check whether the motor rotation direction is consistent with the magnetic pump steering mark.

After the motor starts, open the discharge valve slowly, and adjust the discharge valve to the required opening after the pump enters the normal working state.

Before CQ-D stainless steel magnetic pump stops working, closingclose the ball discharge valve first, and then cut off the power supply.

Attention

As the cooling and sliding of CQ-D stainless steel magnetic drive pump bearings depend on the medium being channeled, it is absolutely forbidden to operaterun without loading it,load, and at the same time, the space-time carrying operation caused by layer moving after power failure is avoided.
If there are solid particles in the medium beingto be transported, filter screen should be added at the pump inlet; if there are ferromagnetic particles, magnetic filter should be added.
The ambient temperature of CQ-D stainless steel magnetic pump should be less than 40 ℃ and the temperature rise of the motor should not exceed 75 ℃.
The medium isto be transported and its temperature shall be within the allowable range of pump materials (see as attached table B: the service temperature of engineering plastic pump is less than 60 ℃, the service temperature of metal pump is less than 100 ℃.℃, the r

Troubleshooting

Trouble	Caused	Exclusion method
The pump does not discharge water	1. The water pump reverses 2. Air leakage of inlet pipe 3. Insufficient water storage in pump chamber 4. The voltage is too high and the coupling slips when it is starting 5. The suction head is too high 6. Valve does not open	1. Change the motor wiring 2. Prevent air leakage 3. Increase water storage capacity 4. Adjust the voltage 5. KeepLower the pump installation position lower 6. Being correctCorrect or changingchange the valve
Insufficient flow	1. The suction pipe diameter is too small or clogged 2. The passage of impeller is blocked 3. The lift is too high 4. The speed is not enough	1. Replace or clean the water inlet pipe 2. Cleaning wheel 3. Open the outlet valve 4. Restore the rated speed
Low head of delivery	1. The flow is too large 2. The speed is too low	1. Turn down the water outlet valve 2. Restore the rated speed
Too much noise	1. The pump shaft is seriously worn 2. The bearing is seriously worn 3. The outer magnetic steel or the inner magnetic steel contacts with the isolation sleeve 4. Friction between seal ring and impeller 5. The rolling bearing in the cooling box is worn	1. Replace the pump shaft 2. Replace the bearing 3. Remove the pump head and reassemble it 4. Replace thrust ring and sealing ring 5. Replace the rolling bearing
Leakage	1. O type sealing ring is damaged	1. Replace O-type sealing ring

product-593-519

1	Pump body	2	Impeller	3	Pump shaft	4	Bearing body
5	Reaction ring	6	Sealing ring	7	Bearing	8	Assembly of inner magnet steel
9	Spacer sleeve	10	Assembly of outer magnet steel	11	Linkup stand

product-708-346

Item	Designation	Material
1	Housing seal ring	Fluorubber
2	Impeller	FEP fused with PTFE
3	Pump housing mouth ring	Silicon carbide
4	Impeller cap	PTFE
5	Pump shaft	Silicon carbide
6	Can seal ring	Fluorubber
7	Pump Housing	Cast iron HT200 lined with FEP
8	Pump cover	Cast iron HT200 lined with FEP
9	Bearing	PTFE
10	Rotor assembly	FEP,NdFeB
11	Can assembly	FEP,Carbon-fiber-reinforced plastic
12	Drive magnet assembly	Cast iron HT200, magnet(NdFeB)
13	Bracket	Cast iron HT200