Product Overview
CQB-G High Temperature Magnetic Drive Pump is a horizontal magnetic-drive centrifugal pump designed for high-temperature corrosive liquid transfer in sealed industrial systems.
It eliminates dynamic mechanical seal leakage under elevated temperature conditions and ensures stable, leak-free operation in thermal chemical processes.
It is suitable for high-temperature acid, alkali, organic solvent and heat-transfer media circulation in chemical, pharmaceutical and petrochemical installations.
Model Designation
Applications
- High-temperature chemical reactor circulation systems
- Thermal oil and heat-transfer fluid circulation loops
- Acid and alkali transfer under elevated temperature conditions
- Solvent recovery and distillation circulation systems
- Sealed process pipelines requiring zero leakage
Engineering Advantages
- Magnetic drive structure with permanent magnet coupling eliminates shaft penetration and dynamic seal leakage.
- High-temperature resistant insulation chamber design ensures stable torque transmission under thermal expansion conditions.
- Optimized hydraulic vortex flow path improves high-temperature medium stability and reduces vaporization risk.
- Reinforced bearing cooling and lubrication system enhances reliability under continuous high-temperature duty.
System Components
CQB-G High Temperature Magnetic Drive Pump mainly consists of:
- Pump casing (corrosion-resistant metal or fluoroplastic lined)
- Impeller
- Magnetic inner and outer rotor assembly
- Isolation sleeve
- Pump shaft
- Sliding bearing assembly
- Bracket and motor
- Cooling and circulation chamber
Technical Specifications
Service Conditions
Designed for sealed transfer of high-temperature corrosive liquids without solid particles.
Operating Conditions
Flow rate: 3.2 – 100 m³/h
Head: 8– 80 m
Power range: 1.1 – 90 kW
Speed: 2900 rpm
Liquid temperature: ≤ 200°C
Working pressure: ≤ 1.6 MPa
Detailed parameter tables are provided below.
Specifications & Installation
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 as explosion-proof motors. Wetted parts are available in materials such as 304, 304L, 316, and 316L. Non-standard magnetic drive pumps can be customized according to customer requirements.
How to Select a Pump Model
- Confirm required flow rate and differential head under actual high-temperature viscosity conditions.
- Verify liquid temperature range to ensure magnetic and insulation sleeve compatibility.
- Evaluate vapor pressure to avoid cavitation under elevated temperature.
- Check chemical compatibility with wetted materials.
Engineering Notes
- Magnetic torque must match pump shaft power to prevent decoupling under high load.
- High-temperature operation requires sufficient cooling circulation in bearing chamber.
- System NPSH margin must be calculated for elevated temperature service.
- Thermal expansion allowance must be considered in pipeline alignment.
Compliance & Quality Assurance
- Factory hydraulic performance testing
- Magnetic torque transmission verification
- High-temperature simulation endurance testing
- Material chemical composition traceability
- Optional third-party inspection and documentation
Safety Notice
- Do not operate under dry-running condition
- Avoid operation beyond maximum temperature rating
- Ensure suction line is fully primed before startup
- Disconnect power before maintenance
OEM & Custom
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:
• Motor voltage & frequency
• Magnetic coupling torque rating
• Wetted parts material selection
• High-temperature insulation configuration
Configuration is determined based on duty point and project specifications.
FAQs
Q1: What is the maximum allowable liquid temperature?
A: The pump supports liquid temperature up to 200°C depending on material configuration.
Q2: Can the pump operate under VFD control?
A: Yes, variable frequency control is allowed within rated speed and torque limits.
Q3: What sealing system does the pump use?
A: The pump uses a static sealing magnetic drive system without dynamic mechanical seals.
Q4: What is the allowable working pressure?
A: Maximum allowable working pressure is 1.6 MPa.
Q5: Is the pump suitable for flammable media?
A: Yes, leak-free magnetic drive structure is suitable for flammable and toxic liquids.
Q6: How is bearing cooling achieved?
A: Internal circulation of pumped liquid provides lubrication and cooling for sliding bearings.