1. Product introduction
LQ3A stainless steel sanitary level cam rotor pump (sanitary food level rotor pump) is a multi-purpose two-way positive displacement pump manufactured by our company with advanced technology. The professional manufacturing technology and manufacturing accuracy of the products have reached the international advanced level.
This product uses two rotors that operate synchronously. The rotor is driven by a pair of synchronous gears in the box. Driven by the main and secondary shafts, the rotor rotates synchronously in the opposite direction to change the volume of the pump, thus forming a high vacuum degree and discharge pressure, which is particularly suitable for the transportation of sanitary grade media and corrosive high viscosity media.
The manufacturing standards of LQ3A stainless steel sanitary cam rotor pump are divided into sanitary and corrosion resistant series; In the structure, it is made of high pressure high viscosity and high pressure low viscosity. The sealing device of the core part of the product is made of different materials and sealing forms according to the different characteristics of different media, which improves the professional conveying performance of the product.
2. Product pictures
3. Scope of application
LQ3A stainless steel sanitary cam type double rotor pump is widely used in petrochemical, fine chemical, daily chemical, pharmaceutical, food, environmental protection, paper making, chemical fiber, coating, metallurgy, oil field and other industries.
4. Product Features
1. During the design and production process of LQ3A stainless steel sanitary rotor pump, there are requirements for internal parts and components, and all parts and components should be made of stainless steel materials. Of course, the stainless steel materials used should meet the sanitary standards of production, followed by the non-toxic rubber materials used for internal seals, so that the pump body has a good non-toxic sealing performance, and the whole pump can operate reliably.
2. LQ3A stainless steel sanitary rotor pump adopts streamline structure in the design of internal structure, which is mainly to prevent the pump from polluting the medium during medium delivery. Therefore, in addition to streamline structure, there should be no dead points and non-metallic parts in the rotor chamber inside the rotor pump.
The LQ3A stainless steel sanitary rotor pump will not react to the medium when delivering it, and will change the quality of the medium. In addition to this, the rotor pump is different from other pumps in the past. It can be used to transport some media that are easy to foam in the transport process. Of course, the rotor pump can also transport some media with high viscosity, high concentration and particles that cannot be transported by some pumps. Like some three-phase mixed media such as steam, liquid and solid, the rotor pump can also transport. In a word, the range of media transported by the rotor pump is very wide, which can transport media with viscosity up to 1000000CP and solid content up to 55%.
4. The LQ3A stainless steel sanitary rotor pump is different from some traditional pumps in the form of mechanical seal. The rotor pump uses an external mechanical seal, so the rotor pump has achieved strict protection in terms of leakage prevention. After using the pump, it can also be directly flushed with water, and has the characteristics of high pressure resistance and wear resistance.
5. LQ3A stainless steel sanitary rotor pump is especially suitable for some long-distance and high resistance transportation methods, because the overall volume of the rotor pump is small, the flow is large, and the head pressure is high.
6. LQ3A stainless steel sanitary rotor pump has a certain clearance between the internal impeller and the transmission gear, and a certain clearance is guaranteed between all parts in the pump cavity during design and production, so the rotors do not contact each other during operation, and do not emit noise and wear, so the operation is very stable and reliable, and the service life has also increased.
7. LQ3A stainless steel sanitary rotor pump is equipped with a frequency converter inside, so the flow can be adjusted freely during operation, and it can also be used as a general metering pump.
8. The internal structure of LQ3A stainless steel sanitary rotor pump is very compact during design and production, so the subsequent use and maintenance are very convenient and the operation cost is very low.
5. Model Meaning
6. Specifications
Note: 1. If the parameters are different from those in the table during the model selection process, our factory can improve the model selection through technology.
2. Diversified caliber: quick clamp joint, national standard flange, threaded type.
3. Motor diversification: stepless speed regulating motor, gear reducer motor, variable frequency motor, etc.
4. Diversification of pump body: SS304/316/316L stainless steel and insulation jacket or upper in and lower out.
7. Installation method
(1) The pump shall be installed and fixed on a stable foundation. It is better to lay a cushion between the base and the foundation. Ensure that the pump will not affect the vibration of the pipeline when it is started. The pump is not affected by other mechanical vibration.
(2) When installing the pipeline, it shall be noted that the inlet and outlet pipelines of the pump shall not exert force on the pump and shall be equipped with corresponding supports.
(3) Before the installation of a new pump, the container and pipeline system must be cleaned, and a filter must be installed before the pump inlet.
(4) Check whether the rotating parts of the pump are stuck or collided. If the pump is collided during transportation, check whether the coupling is concentric and adjust it.
(5) Sufficient maintenance space shall be reserved for the pump during installation to facilitate equipment maintenance in the later period.
(6) After the pump is installed, please ground the motor at the grounding mark according to the national safety grounding regulations.
8. Precautions
(1) Before using LQ3A stainless steel sanitary cam type double rotors, sufficient liquid storage shall be added to the pump. It is strictly prohibited to start the pump when there is no liquid or insufficient liquid storage.
(2) Turn on the power supply, click the start switch first to see whether the running direction of the motor is consistent with the rotation direction of the pump. If not, correct it immediately, and do not reverse it.
(3) To ensure that the pump body and motor are not damaged, please install a safety valve at the outlet of the pump and provide an over-current protection device.
(4) The valve of the inlet pipeline shall not be used to regulate the flow, so as to avoid the vibration of the pump caused by cavitation.
9. Frequently Asked Questions
(1) Insufficient flow may be caused by wear of pump chamber or rotor and blockage of outlet pipe.
(2) Motor heating may be caused by motor phase loss, high pressure or medium viscosity.
(3) Bearing heating may be caused by bent main shaft or insufficient oil in bearing oil chamber.
(4) The noise and vibration may be caused by unstable pipeline support, liquid mixed with gas, and excessive pump speed.
10. Use needs
(1) LQ3A stainless steel sanitary cam type double rotors regularly observe the oil level through the bearing box mirror, and supplement in time to prevent bearing wear.
(2) When working, the increase of viscosity, flow and pressure will easily cause overload of the motor, so check whether the pressure gauge, safety valve and overcurrent protection device are normal.
(3) The filter and filter screen shall be cleaned every month within one year after the installation of the new pump to avoid blockage, which may cause the pump to fail to work normally. It is strictly prohibited to use Y-type pipe filter, because the effective area of Y-type pipe filter is too small, which affects the medium flow rate.
(4) For the transportation of coagulable high viscosity medium, the medium in the pump shall be diluted before the pump is stopped to prevent the solidification of high viscosity medium in the pump. If necessary, the cleaning solution can be used to circulate (clean) the pump for several minutes
(5) In case of vibration and noise, the pump shall be shut down for inspection and troubleshooting before operation.
LQ3A stainless steel cam rotor pump: Maintenance, Performance, and Operation Guide
The LQ3A stainless steel cam rotor pump is a high-precision pump designed for efficient transfer of viscous and corrosive liquids in demanding industrial environments. With its durable stainless steel construction and advanced cam rotor design, it delivers smooth, pulsation-free flow and accurate dosing. This guide provides detailed insights into maintenance schedules, product advantages, operational tips, and performance characteristics, making it an essential reference for engineers, plant operators, and procurement professionals.
The LQ3A pump is widely used in industries requiring reliable handling of high-viscosity or chemically aggressive liquids, including:
Chemical processing
Food and beverage production
Pharmaceutical manufacturing
Adhesives and resins handling
Lubricants and oils transfer
Stainless Steel Construction: Provides excellent corrosion resistance and long service life
Cam Rotor Design: Ensures smooth, continuous, and pulsation-free flow
High Viscosity Handling: Capable of transferring thick liquids without clogging
Energy Efficient: Optimized design reduces operational costs
Low Maintenance: Modular components allow easy servicing and replacement
The LQ3A pump stands out due to its combination of precision, durability, and efficiency.
Smooth Flow Performance: Cam rotor design minimizes pulsation, ensuring accurate volumetric transfer.
Corrosion and Wear Resistance: Stainless steel rotors and casing resist chemical attack and mechanical wear.
High Reliability: Stable operation under high-viscosity conditions reduces downtime.
Compact Footprint: Suitable for installation in limited spaces while maintaining performance.
Versatility: Handles a wide range of fluids, from adhesives and oils to syrups and chemical solutions.
| Parameter | Range |
|---|---|
| Flow Rate | 1 – 150 m3/h |
| Maximum Pressure | 2.5 MPa |
| Temperature Range | -10°C – 120°C |
| Viscosity Handling | Up to 1,000,000 cP |
| Pump Speed | 1450 – 2900 rpm |
Maintenance Frequency
Proper maintenance ensures long service life, reduced downtime, and optimal performance.
| Task | Frequency | Purpose |
|---|---|---|
| Visual inspection | Weekly | Check for leaks, unusual noise, or vibration |
| Bearing lubrication | Every 3–6 months | Reduce friction and prevent overheating |
| Seal and gasket inspection | Every 3–6 months | Prevent leakage and fluid contamination |
| Rotor and casing cleaning | Monthly (or after handling sticky fluids) | Remove buildup and maintain efficiency |
| Performance testing | Annually | Verify flow rate and pressure stability |
| Motor and electrical inspection | Annually | Ensure safe and reliable operation |
Keep a detailed log of inspection and repair activities.
Use genuine spare parts for replacement of seals, rotors, and gaskets.
Flush the pump with clean water after pumping corrosive or sticky fluids.
Monitor temperature and vibration continuously to detect early signs of wear.
Correct operation ensures safe, efficient, and reliable performance of the LQ3A pump.
Inspect pump and motor for visible damage.
Verify alignment between pump and driver.
Ensure sufficient fluid supply to avoid dry running.
Check that all inlet and outlet valves are in the correct position.
Confirm electrical connections are secure and grounded.
Open the suction valve and partially open the discharge valve.
Turn on the motor and gradually increase speed (if using a variable frequency drive).
Monitor pressure, flow, and vibration to ensure normal operation.
Gradually close the discharge valve.
Turn off the motor.
Flush pump with clean water if handling sticky or corrosive liquids.
Record operational parameters and any anomalies for future reference.
Always disconnect the power supply before performing maintenance.
Wear protective gear when handling corrosive, hot, or pressurized fluids.
Avoid operating the pump outside recommended flow and pressure ranges.
The LQ3A stainless steel cam rotor pump is known for its high efficiency, reliability, and versatility.
High Viscosity Capability: Transfers fluids up to 1,000,000 cP smoothly without cavitation or clogging.
Low Pulsation: Ensures stable operation in dosing, filling, and continuous production processes.
Corrosion Resistance: Stainless steel components withstand aggressive chemicals and high-temperature fluids.
Energy Efficiency: Optimized hydraulic and mechanical design reduces power consumption.
Long Service Life: Durable materials and low-wear components minimize maintenance frequency.
The LQ3A pump is widely used across industrial, chemical, food, and pharmaceutical applications.
Chemical Processing: Safe transfer of acids, resins, and other viscous chemicals.
Lubricant and Oil Handling: Efficient pumping of high-viscosity oils and greases.
Adhesives and Sealants: Precise volumetric transfer in manufacturing lines.
Syrups and Pastes: Smooth, clog-free transfer for production lines.
Chocolate, Cream, and Dairy Products: Stainless steel design ensures hygienic operation.
Food Dosing Systems: Accurate flow control for packaging and mixing processes.
Viscous Solutions: Smooth handling of gels, creams, and syrups.
High Hygiene Standards: Stainless steel components suitable for cleanroom or sterile environments.
The LQ3A stainless steel cam rotor pump offers precision, durability, and efficiency for industries handling high-viscosity and corrosive fluids. By following proper maintenance schedules, operational tips, and safety guidelines, users can ensure consistent performance, minimize downtime, and extend service life.
Whether used in chemical plants, food processing facilities, or pharmaceutical production, the LQ3A pump delivers reliable, smooth, and accurate fluid transfer, making it an ideal choice for high-demand industrial applications.
Phone：+86 15868545868/+8618968868555
whatsapp：+86 15868545868/+8618968868555
Email：haiwan@haiwanpump.cn
Add：Meiao Street, Qiaoxia Town, Yongjia County Wenzhou City, Zhejiang, China
Copyright ? 2025 Zhejiang Haiwan Pump Industry Co., Ltd.
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