1. Product introduction
The Canned motor pump
(i.e. canned motor pump) adopts a unique mechanism that is totally
enclosed and has no mechanical seal. The stator and rotor are
respectively shielded and sealed with stainless steel sleeves, and the
liquid transported can enter the motor for cooling, so as to solve the
problems such as easy leakage of transmission medium, environmental
pollution, poor operation reliability, and difficult maintenance caused
by the use of mechanical seals in ordinary pipeline electric pumps. The
rotating part is lubricated by graphite bearing (or other materials can
be customized) and transmission medium, which is a low-noise, green and
environment-friendly upgrading product. Due to its low noise, no
leakage, reliable operation, maintenance free and other advantages, it
has won the trust of users.
2. Product pictures
3. Scope of application
Shielded electric
pumps are widely used in liquid transportation, wastewater treatment and
acid addition processes in chemical, pharmaceutical, petroleum,
metallurgy, electric power, electroplating, pickling, pesticide, paper
making and other industries. This pump can transport flammable,
explosive and volatile dangerous media such as butanol, dimethylamine,
dichloroethane, cyclohexanone, ammonia, petroleum ether, propane,
dimethylformamide, ethyl acetate, etc. It is the most advanced leak free
pump at present.
4. Product Features
(1) Type B canned motor pump is a basic type, and the pump body is directly mounted on the motor flange.
(2) The BA type canned motor pump is a basic type, and the pump body is connected with the motor flange through the connector.
(3)
B-V type shielded electric pump is a basic type, and the circulating
pipe mode of the pump is changed to axial internal circulation.
(4)
More forms of canned motor pumps can transport flammable, easy to
vaporize, high temperature, crystallization and other special media.
5. Model Meaning
The
canned motor pump is manufactured by our company according to different
media, including basic type, reverse circulation type, high temperature
separation type, self-priming type, high melting point type, mud
sealing type, liquid sealing type, liquid injection type and special
type. According to different parameters, our factory configures
different forms of canned motor pumps. Please call us for details.
6. Precautions
(1) Yongqiu shielded electric pump is strictly prohibited from no-load operation.
(2)
Before starting the Yongqiu shielded pump, it is necessary to
thoroughly remove the rust and solid foreign matters in the device. To
ensure that the clean medium enters the pump, please install a filter at
the pump inlet, and clean the filter regularly according to the
cleanliness of the medium, to prevent the pump from being empty due to
filter blockage, thus effectively preventing the motor from burning.
(3)
The canned motor pump with cold water jacket must be connected with
cooling water according to the specified cooling water flow, and then
run.
(4) The normal working state of the canned motor pump must conform to the data on the nameplate of the motor pump.
(5) Before the canned motor pump operates, the gas in the device and pump shall be fully discharged.
(6)
When the actual amount of canned motor pump is less than the minimum
flow, a bypass pipe should be set, otherwise it should not be started.
(7)
Before using the canned motor pump, the operating process should be
understood in detail to avoid misoperation and personal accidents
Canned motor pump
The Canned Motor Pump is a highly reliable, Hermetically sealed pump designed for safe and efficient fluid transfer in various industrial processes. Its leak-free design and maintenance-free operation make it ideal for handling corrosive, toxic, or volatile fluids. This pump is widely used in chemical, pharmaceutical, petrochemical, and process industries, ensuring safe, efficient, and continuous operation.
Product Overview
The Canned Motor Pump integrates a pump and motor into a single sealed unit, eliminating the need for traditional mechanical shaft seals. This design prevents fluid leakage, reduces maintenance, and ensures operational safety.
Key Features:
Hermetically sealed motor prevents leakage and contamination
Corrosion-resistant materials for chemical and high-temperature applications
Compact and modular design for flexible installation
Maintenance-free operation under normal working conditions
Energy-efficient and stable performance
Typical Applications:
Chemical processing and transfer of aggressive liquids
Pharmaceutical manufacturing requiring contamination-free handling
Petrochemical processes including toxic and flammable fluids
Cooling and circulation of high-temperature liquids in industrial systems
Operation Instructions
Correct operation of the Canned Motor Pump is essential to maintain efficiency and longevity.
Startup Procedure:
Check the pump installation – Ensure it is mounted securely on a level base.
Inspect fluid and system conditions – Verify compatibility and ensure the system is free of debris.
Connect electrical supply – Ensure voltage and frequency match the pump specifications.
Prime the pump if required – Some models are self-priming, but initial fluid filling may be needed.
Start the pump – Monitor vibration, noise, and current draw during initial operation.
Operational Tips:
Avoid running the pump dry, as it can damage internal components.
Maintain stable inlet pressure to prevent cavitation.
Monitor temperature and flow rate for consistent performance.
Conduct regular inspections to ensure no leaks or unusual noise occurs.
Shutdown Procedure:
Gradually reduce flow and allow the pump to empty residual fluid.
Turn off the electrical supply and disconnect if needed.
Inspect the pump for any wear or unusual conditions.
Product Applications
The Canned Motor Pump is versatile and widely used in industries where safety, reliability, and corrosion resistance are critical.
Chemical Industry:
Transfers aggressive acids, alkalis, and solvents without risk of leakage.
Maintains high process safety and environmental protection.
Pharmaceutical Industry:
Petrochemical Industry:
Industrial Processes:
Specifications and Models
The Canned Motor Pump is available in a variety of models and configurations to meet specific industrial needs.
| Parameter | Specification Range | Notes |
|---|
| Flow Rate | 0.5–150 m³/h | Model-dependent |
| Head | 5–80 m | Adjustable based on application |
| Temperature Range | -20°C to 200°C | Material-dependent |
| Pressure Rating | 1.0–16 MPa | Based on casing and internal components |
| Motor Power | 0.37–55 kW | Single-phase or three-phase options |
| Materials | Stainless steel, alloy coatings | Corrosion and chemical resistance |
| Seal Type | Hermetically canned (no mechanical seals) | Ensures leak-free operation |
| Installation Type | Horizontal / Vertical | Based on process layout |
Quality Assurance and Inspection
Each Canned Motor Pump undergoes rigorous quality control to ensure performance, safety, and compliance with industrial standards.
Inspection and Testing:
Hydraulic performance test – Verifies flow rate and head.
Leakage test – Confirms hermetic sealing.
Electrical testing – Checks motor insulation and efficiency.
Material inspection – Ensures corrosion resistance and chemical compatibility.
Certification and Compliance:
ISO 9001 Quality Management System certified
Compliance with CE, ATEX, and relevant industrial safety standards
Documentation provided with each unit, including inspection and test reports
Maintenance Recommendations:
Advantages of Canned Motor Pump
Leak-Free Operation – Eliminates risk of hazardous leaks in chemical and petrochemical processes.
Compact Design – Integrates pump and motor into a single unit, saving space.
Maintenance-Free – Reduces downtime and operational costs.
Corrosion and Temperature Resistant – Handles a wide range of aggressive fluids safely.
Energy-Efficient – Optimized motor and hydraulic design reduce energy consumption.
Safe for Hazardous Areas – Hermetically sealed design suitable for explosive environments.
Conclusion
The Canned Motor Pump is an essential solution for industries requiring safe, reliable, and efficient fluid transfer. Its hermetically sealed design, corrosion resistance, and compact structure make it ideal for chemical, pharmaceutical, petrochemical, and industrial applications. By following proper installation, operation, and inspection procedures, users can ensure long-term efficiency, minimal maintenance, and safe process operation.
This pump provides a highly reliable, energy-efficient, and environmentally safe solution for modern industrial processes.
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