CQ Series Stainless Steel Magnetic Pump for Alkali
The CQ Series Stainless Steel Magnetic Pump by Changyupump utilizes a permanent magnet coupling to replace dynamic seals with a static isolation sleeve. This sealless design ensures wetted components remain completely sealed, effectively eliminating the leakage and dripping common in traditional alkali pump applications such as sodium hydroxide transfer. Constructed from 304 or 316L stainless steel, these units provide essential corrosion resistance while preventing medium contamination.
Beyond its role as an alkali pump, this Stainless Steel Magnetic Pump is engineered for volatile organic solvents, toxic reagents, and flammable liquids. With a flow range of 1.2–60 m³/h, the internal graphite-filled bearings and high-strength shaft ensure stable performance for pharmaceutical and electroplating fluids. The 12-pole ferrite magnet assembly supports reliable operation for media up to 100°C without mechanical contact.
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Flow Rate Range : |
1.2m³/h~60m³/h |
|---|---|
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Head Range: |
5m~50m |
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Motor Power : |
0.12kw~18.5kw |
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Speed: |
968-3450 r/min |
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Medium Temperature Range: |
-20°C~90°C |
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Customizable Materials: |
Stainless steel (304, 316L) |
Introduction
The CQ Series Stainless Steel Magnetic Pump by Changyupump utilizes a permanent magnet coupling principle to replace dynamic seals with a static isolation sleeve. This sealless design ensures all wetted components remain hermetically sealed, effectively eliminating the leakage, seepage, and dripping issues common in traditional alkali pump applications. Constructed from high-quality 304 or 316L stainless steel, these units feature a pump housing manufactured via a precision silica sol pickling process. This advanced engineering provides superior corrosion resistance for aggressive alkaline media, such as sodium hydroxide, while ensuring the conveyed fluids remain pure and free from contamination.
Beyond its performance as an alkali pump, this Magnetic Pump is engineered for diverse operating conditions in the chemical, pharmaceutical, and petroleum sectors. It is highly effective for the safe transfer of volatile organic solvents, toxic reagents, and flammable liquids where zero-leakage is a critical safety requirement. With a compact structure and low noise profile, these pumps are widely integrated into circulating water systems, filtration equipment, and electroplating baths. The 12-pole ferrite magnet assembly and high-strength, graphite-filled bearings ensure stable, reliable operation for media up to 100°C, delivering a robust solution for high-purity and high-risk fluid handling.
By combining magnetic coupling technology with high-standard materials and manufacturing processes, Changyupump ensures that its CQ Series Stainless Steel Magnetic Pumps can operate reliably and stably over the long term, even under the harsh conditions typical of alkali pumping applications.
| 1 | Pump Casing | 2 | Stationary Ring | 3 | Rotating Ring |
| 4 | Impeller | 5 | Sealing Ring | 6 | Partition Board |
| 7 | Containment Shell | 8 | Outer Magnetic Assembly | 9 | Inner Magnetic Assembly |
| 10 | Pump Shaft | 11 | Shaft Sleeve | 12 | Connecting Bracket |
| 13 | Motor |
Pump Housing: Manufactured using the silica sol precision casting process, free of sand holes and porosity. Standard materials are 304 or 316L stainless steel, with a wall thickness of 5–6 mm.
Isolation Sleeve: Fabricated from high-quality stainless steel via laser welding, with a pressure resistance of up to 2 MPa, ensuring no stress deformation occurs under high-pressure conditions.
Magnet Assembly: Utilizes Grade 12 ferrite permanent magnets in a push-pull magnetic circuit design, delivering a surface magnetic flux density of 151 Gauss with no demagnetization.
Bearings & Shaft: A solid stainless steel pump shaft paired with graphite-filled bearings, making it particularly suitable for environments involving alkalis, acids, salts, and organic solvents.
CQ Series Stainless Steel Magnetic Pump Specifications
| Item | Specification |
|---|---|
| Pump Type | Single-stage, single-suction sealless magnetic drive pump |
| Design Standard | Permanent magnet coupling transmission principle |
| Flow Range | 1.2 – 60 m³/h |
| Head Range | 5 – 50 m |
| Power Range | 0.12 – 11 kW |
| System Pressure | Flange rating: 0.6 MPa; Isolation sleeve withstands up to 2 MPa |
| Temperature Range | Standard: ≤ 100°C; High-temperature custom: ≤ 200°C |
| Seal Type | Sealless design using static seals |
| Material Options | 304 Stainless Steel / 316L Stainless Steel |
| Medium Density | ≤ 1.2 g/cm³ (Standard); Custom up to 1.6 g/cm³ |
| Noise Level | Low noise operation |
| Installation Type | Horizontal installation |
CQ Series Model Code Interpretation (Pump Selection Guide)
The CQ series Stainless Steel Magnetic Pump utilizes a standardized coding system to define inlet diameter, drive type, and hydraulic performance. This method assists engineers in identifying specific pump capabilities for safe alkali pump integration.
Example Model: 50CQ-32
- 50 — Pump Rated Head (m)
- CQ — Magnetic Drive Pump Designation Code
- 32 — Pump Inlet Diameter
If you’re unsure how to choose this model, feel free to contact our team right away—we’ll be happy to provide professional guidance.
| No | Model | Flow (m³/h) | Head (m) | Efficiency (%) | NPSHr (m) | Inlet × Outlet (mm) | Speed (r/min) | Motor Power (kW) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 16CQ-5 | *1.2 | 5 | 20 | 1.5 | 16×12 | 2900 | 0.12 | 12 |
| 2 | 16CQ-8 | *1.8 | 8 | 21 | 1.5 | 16×12 | 2900 | 0.18 | 15 |
| 3 | 20CQ-12 | *3 | 12 | 21 | 2.0 | 20×12 | 2900 | 0.37 | 22 |
| 4 | 25CQ-15 | *5.4 | 15 | 25 | 2.7 | 25×20 | 2900 | 1.1 | 30 |
| 5 | 32CQ-15 | *6.5 | 15 | 28 | 3.0 | 32×25 | 2900 | 1.1 | 35 |
| 6 | 32CQ-25 | *4.8 | 25 | 23 | 3.0 | 32×25 | 2900 | 1.1 | 35 |
| 7 | 32CQ-32 | 2 | 32 | 20 | 2.5 | 32×25 | 2900 | 2.2 | 38 |
| *3.6 | 32 | 24 | |||||||
| 5 | 30 | 27 | |||||||
| 8 | 40CQ-20 | 6.3 | 21 | 20 | 3.0 | 40×32 | 2900 | 2.2 | 42 |
| *10 | 20 | 22 | |||||||
| 11 | 20 | 22 | |||||||
| 9 | 40CQ-32 | 6.3 | 33 | 24 | 3.0 | 40×32 | 2900 | 4 | 65 |
| *11.5 | 32 | 25 | |||||||
| 13 | 30 | 27 | |||||||
| 10 | 40CQ-40 | *6.3 | 40 | 21 | 3.0 | 40×32 | 2900 | 4 | 68 |
| 11 | 50CQ-25 | 9 | 27 | 30 | 3.0 | 50×40 | 2900 | 4 | 68 |
| *14.4 | 25 | 27 | |||||||
| 17 | 25 | 34 | |||||||
| 12 | 50CQ-32 | 9 | 33 | 28 | 3.0 | 50×40 | 2900 | 4 | 70 |
| *13.2 | 32 | 29 | |||||||
| 17 | 29 | 30 | |||||||
| 13 | 50CQ-50 | 6.3 | 50 | 27 | 3.0 | 50×32 | 2900 | 5.5 | 108 |
| *7.8 | 50 | 28 | |||||||
| 10 | 47 | 33 | |||||||
| 14 | 65CQ-25 | 15 | 26 | 35 | 3.0 | 65×50 | 2900 | 4 | 110 |
| *16.8 | 25 | 36 | |||||||
| 20 | 23 | 38 | |||||||
| 15 | 65CQ-32 | 17 | 33 | 48 | 3.0 | 65×50 | 2900 | 5.5 | 115 |
| *25 | 32 | 50 | |||||||
| 30 | 28 | 53 | |||||||
| 16 | 80CQ-32 | 35 | 33 | 48 | 3.0 | 80×65 | 2900 | 11 | 155 |
| *50 | 32 | 52 | |||||||
| 60 | 29 | 55 |
Note: At Changyu, we provide one-on-one technical guidance and product recommendations tailored to your specific operating conditions. If you have any questions, please feel free to contact us right away, our team of experts will respond within 24 hours.
Email: [email protected]
Phone: +86-13651913727
Advantages of the Stainless Steel Magnetic Pump
Zero Leakage Design
The static seal architecture eliminates dynamic seal leakage, ensuring safe and clean alkali pump operation for hazardous media.
High Torque Coupling
Advanced 12-pole ferrite magnets provide synchronized, non-slip power transmission, maintaining stable performance for high-density fluids and industrial chemicals.
316L Corrosion Resistance
Constructed from premium stainless steel, this pump resists aggressive chemical erosion and prevents any contamination of the conveyed medium.
Low Maintenance Operation
The sealless, compact structure reduces mechanical wear and downtime, offering a reliable, long-term solution for demanding industrial filtration systems.
Applications: Stainless Steel Magnetic Pump
As a specialized Stainless Steel Magnetic Pump, the CQ series is engineered to handle high-risk, high-purity, and corrosive media across industries requiring hermetically sealed, zero-leakage fluid transfer solutions.
Chemical Processing
Provides corrosion-resistant transfer of acids, alkali solutions, and various organic solvents.
Pharmaceutical Industry
Ensures the clean, contamination-free transfer of high-purity pharmaceutical liquids and valuable reagents.
Electroplating & Surface Treatment
Ideal for circulating electroplating solutions and rare noble liquids within specialized filtration equipment.
Food & Beverage
Facilitates the hygienic transfer of food-grade liquids while maintaining strict purity standards.
China Stainless Steel Magnetic Pumps Manufacturer & Factory
Changyu is a professional Stainless Steel Magnetic Pump manufacturer and factory in China, specializing in durable, corrosion-resistant magnetic drive pumps for chemical, pharmaceutical, and industrial fluid transfer applications. Equipped with advanced production facilities and a highly skilled technical team, we ensure reliable quality and high-performance pump solutions.
Our company is certified with the ISO 9001 international quality management system, and all products comply with CE, ATEX, EAC, and API standards. We have also obtained 25 invention patents, demonstrating our strong R&D capability and commitment to innovation.
We have enough inventory for quick delivery and offer customized design services, including parameters such as head, flow rate, material composition, motor specifications, sealing methods, and installation configurations to meet different operating conditions. Contact our team for customized solutions and highly competitive quotes.
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