Product Overview
CQB-G High-Temperature Magnetic Drive Chemical Pump is a horizontal, seal-less magnetic drive centrifugal pump designed for high-temperature corrosive chemical liquid transfer.
It eliminates mechanical seal leakage and reduces maintenance risks in high-temperature chemical processing systems.
It is suitable for high-temperature acid, alkali, organic solvent, and petrochemical liquid transfer applications.
Model Designation
Applications
Typical Operating Scenarios
- High-temperature chemical reaction liquid circulation
- Petrochemical heat-transfer medium transfer
- Organic solvent circulation under elevated temperature
- Acid and alkali transfer in heated processing lines
- Closed high-temperature chemical feed systems
Engineering Advantages
Structural Design Logic + Engineering Result
Magnetic drive transmission eliminates dynamic shaft seal and prevents external leakage.
High-temperature resistant isolation sleeve ensures torque transmission stability.
Static sealing structure reduces fugitive emissions.
Non-contact magnetic coupling minimizes mechanical wear.
Reinforced bearing and cooling structure ensures thermal stability at elevated temperatures.
System Components
CQB-G High-Temperature Magnetic Drive Chemical Pump mainly consists of:
- Pump casing
- Closed impeller
- Inner magnetic rotor
- Outer magnetic assembly
- Isolation sleeve (high-temperature resistant)
- Pump shaft
- Sliding bearings
- Bearing housing
- Base frame
Technical Data
Service Conditions
- Corrosive and high-temperature chemical liquids
- Clean or low-solid-content media
- Continuous industrial operation
Operating Conditions
- Flow Rate: 3.2 – 100 m³/h
- Head: 8 – 125 m
- Power Range: 1.1 – 90 kW
- Speed: 2900 rpm
Detailed parameter tables are provided below.
Specifications & Installation
Outline Drawing
Performance Parameters
| Model | Flow (m3/h) | Head (m) | Shaft Power (kW) | Speed (r/min) | Efficiency (%) |
| CQB32-20-125G | 3.2 | 20 | 1.1 | 2900 | 30 |
| CQB32-20-160G | 3.2 | 32 | 1.5 | 2900 | 28 |
| CQB40-25-105G | 6.3 | 12.5 | 1.1 | 2900 | 39 |
| CQB40-25-125G | 6.3 | 20 | 2.2 | 2900 | 35 |
| CQB40-25-160G | 6.3 | 32 | 3.0 | 2900 | 32 |
| CQB40-25-200G | 6.3 | 50 | 5.5 | 2900 | 25 |
| CQB50-40-85G | 12.5 | 8 | 1.5 | 2900 | 49 |
| CQB50-32-105G | 12.5 | 12.5 | 2.2 | 2900 | 47 |
| CQB50-32-125G | 12.5 | 20 | 4.0 | 2900 | 42 |
| CQB50-32-160G | 12.5 | 32 | 4.0 | 2900 | 39 |
| CQB50-32-200G | 12.5 | 50 | 7.5 | 2900 | 31 |
| CQB50-32-250G | 12.5 | 80 | 18.5 | 2900 | 25 |
| CQB65-50-125G | 25 | 20 | 4.0 | 2900 | 30 |
| CQB65-50-160G | 25 | 32 | 7.5 | 2900 | 28 |
| CQB65-40-200G | 25 | 50 | 15 | 2900 | 39 |
| CQB65-40-250G | 25 | 80 | 22 | 2900 | 35 |
| CQB80-65-125G | 50 | 20 | 7.5 | 2900 | 32 |
| CQB80-65-160G | 50 | 32 | 15 | 2900 | 25 |
| CQB80-50-200G | 50 | 50 | 22 | 2900 | 49 |
| CQB80-50-250G | 50 | 80 | 37 | 2900 | 47 |
| CQB100-80-125G | 100 | 20 | 15 | 2900 | 42 |
| CQB100-80-160G | 100 | 32 | 22 | 2900 | 39 |
| CQB100-65-200G | 100 | 50 | 30 | 2900 | 31 |
| CQB100-65-250G | 100 | 80 | 55 | 2900 | 25 |
| CQB100-65-315G | 100 | 125 | 90 | 2900 | 50 |
| Note: Motors of 0.75 kW and above can be supplied with explosion-proof motors. Wetted parts are available in 304, 304L, 316 and 316L. Non-standard magnetic pumps can be customized according to customer requirements. | |||||
How to Select a Pump Model
Confirm required flow rate and total head under operating temperature conditions.
Verify magnetic coupling torque capacity relative to viscosity and density.
Check chemical compatibility of isolation sleeve and wetted materials.
Ensure system temperature does not exceed 280°C limit.
Evaluate NPSH margin under high-temperature vapor pressure conditions.
Engineering Notes
Magnetic drive pumps are not suitable for dry running.
High-temperature vapor pressure may affect cavitation margin.
Sliding bearings rely on medium lubrication.
Viscosity increase at lower temperature startup should be considered.
Compliance & Quality Assurance
Hydraulic performance testing in accordance with ISO 9906.
Magnetic coupling torque testing.
Pressure containment testing of isolation sleeve.
Dynamic balance verification of rotor assembly.
Material certificate traceability for pressure components.
Safety Notice
Do not operate under dry-running condition.
Ensure pump is fully primed before startup.
Do not exceed rated temperature and pressure limits.
Disconnect power before maintenance.
OEM & Customization
This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.
Available options include:
• High-temperature material upgrades
• Magnetic coupling torque level selection
• Motor voltage & frequency
• Explosion-proof motor configuration
• Insulation class upgrade
Configuration is determined based on duty point and project specifications.
Based on duty point and project specifications.
FAQs
Q1: What is the maximum allowable liquid temperature?
≤ 280°C.
Q2: Can the pump operate under VFD control?
Yes, within rated speed and torque limits.
Q3: What sealing system is used?
Seal-less magnetic drive with static sealing structure.
Q4: What is the maximum working pressure?
≤ 1.6 MPa.
Q5: Can the pump handle volatile solvents?
Yes, provided chemical compatibility and NPSH margin are verified.
Q6: Does magnetic coupling require lubrication?
No direct lubrication; internal bearings rely on pumped medium.
Q7: What standards does the pump comply with?
Manufactured according to chemical pump industrial standards and ISO hydraulic testing standards.