As the global energy structure accelerates its transformation to clean and low-carbon, breakthroughs in new energy technology have become the core driving force for sustainable development. Whether it is solar energy, hydrogen energy or lithium battery manufacturing, the safe and efficient transportation of fluids is still a key link in the implementation of technology. With its unique advantages such as zero leakage, corrosion resistance and high stability, magnetic drive pumps are becoming the "invisible guardian" in the field of new energy, injecting double guarantees of safety and efficiency into the energy revolution.

I. Core application scenarios of magnetic drive pumps in the field of new energy

1. Liquid flow battery energy storage system: solving the problem of electrolyte circulation

Liquid flow batteries (such as all-vanadium liquid flow batteries) store and release energy through electrolyte circulation, but electrolytes are often highly corrosive. Traditional mechanical pumps are prone to leakage due to seal failure, which brings safety hazards and environmental pollution. The magnetic drive pump adopts magnetic coupling technology and uses non-contact transmission between the inner and outer magnetic rotors to completely eliminate the risk of leakage of mechanical seals.

2. Lithium battery manufacturing: ensuring accurate delivery of chemicals

Lithium battery production requires precise control of the flow and pressure of electrolytes and organic solvents. The pulsation-free delivery of magnetic drive pumps prevents chemical stratification or oxidation. Its fluoroplastic lining and ceramic bearings can withstand highly corrosive media such as hydrofluoric acid.

3. Thermal energy storage systems: reliable carriers of high-temperature media

In molten salt storage and phase change material systems, magnetic drive pumps operate for long periods of time in environments exceeding 300°C. They stably transport molten salt or thermal oil through high-temperature resistant alloys and dynamically balanced impellers.

4. Solar photovoltaic systems: efficient cooling solutions

In photovoltaic systems, magnetic drive pumps can realize liquid circulation in cooling components such as water pumps and water tanks, thereby improving system efficiency, reducing maintenance costs, and avoiding leakage problems common to traditional pumps.

5. Wind energy: improving reliability in harsh conditions

Magnetic drive pumps can be used as oil pumps or lubricant pumps in wind turbines to ensure reliable fluid delivery. Its leak-free design can significantly improve the operational stability of remote or offshore wind farms.

6. Hydrogen fuel cells: safe handling of hydrogen

Hydrogen fuel cells require high-pressure delivery of liquid hydrogen and coolant. Traditional pumps have the risk of explosion due to seal failure, while the fully sealed structure and high pressure resistance (up to 25MPa) of magnetic drive pumps can safely handle flammable and explosive media.

II. Technical advantages and industry certification of magnetic drive pumps

1. Zero leakage design: Eliminate risks at the source. Magnetic drive pumps replace mechanical seals with magnetic transmission to prevent leakage of toxic and flammable media.

2. Improve energy efficiency: Reduce energy consumption and noise. Compared with traditional pumps, magnetic drive pumps reduce mechanical friction losses, reduce energy consumption by 15-20%, and minimize noise pollution.

3. Wide application: Adapting to diversified energy needs, magnetic drive pumps are widely used in energy fields such as solar energy, batteries, and wind energy to meet the needs of various clean energy technologies.

From liquid flow batteries to hydrogen energy systems, magnetic drive pumps are driving the safety and efficiency upgrades of the new energy industry. As the global demand for clean energy surges, these pumps will show irreplaceable value in more scenarios-they are not only fluid transmission equipment, but also the core engine of the green revolution in the new energy era.

In recent years, with the rapid development of industries such as chemical, petroleum, medicine, and new energy, the demand for fluid conveying equipment has gradually increased. The selection of chemical pumps directly affects production efficiency and safety. Different chemical pump medium characteristics (such as corrosiveness, viscosity, temperature, solid content, etc.) put forward differentiated requirements for the material, structure, and working principle of chemical pumps. This article starts with the medium of chemical pumps, and introduces in detail the types of chemical pumps corresponding to specific media.

1. Strong acid and strong alkali chemical pump medium

Strong acid: concentrated sulfuric acid (concentration>80%), hydrochloric acid, nitric acid, hydrofluoric acid, mixed acid solution (such as nitric acid + hydrofluoric acid pickling solution)

Strong alkali: sodium hydroxide (caustic soda), potassium hydroxide, high temperature alkali solution (such as alkali circulation in chemical fiber industry)

Recommended pumps:

1. Fluoroplastic chemical pumps (such as IHF fluorine-lined centrifugal pumps): The chemical inertness of fluoroplastics (such as PTFE, FEP) can resist the corrosion of more than 200 chemical media.

2. Magnetic drive pump: no seal design to prevent leakage of strong acids and alkalis, suitable for flammable and explosive environments.

II. Organic solvents and volatile chemical pump media

Benzene, acetone, carbon tetrachloride, ester solvents, methanol, ethanol

Recommended pumps:

1. Canned motor pump: The integrated motor pump design ensures zero leakage and prevents solvent evaporation or explosion. Very suitable for pharmaceutical applications.

2. Stainless steel centrifugal pump (316L): Excellent corrosion resistance to low-concentration organic solvents (such as ethanol, acetone), in line with FDA food grade standards.

III. High viscosity, particle-containing chemical pump media

High viscosity liquids: crude oil, adhesives, paints, resins (viscosity>1000cP)

Particle-containing media: mud, wastewater (solid content ≤15%), chemical sludge

Recommended pumps:

1. Screw pump: The meshing screw ensures the stable flow of high viscosity liquids (such as asphalt). The specially designed gap can handle fine particles without clogging.

2. Diaphragm pump: No seal structure, strong self-priming ability, handle slurries with solid content ≤25% (such as electroplating sludge).

IV. High/Low Temperature Chemical Pump Media

High temperature media: thermal oil (≤350°C), molten salt (≤500°C), high temperature steam condensate

Low temperature media: liquid nitrogen (-196°C), LNG (-162°C)

Recommended pumps:

1. High temperature chemical pumps: use heat-resistant alloy steel and silicon carbide mechanical seals, with a continuous operating temperature of 350°C. Commonly used in petroleum refining (such as heavy oil hydrogenation).

2. Low temperature chemical pumps: designed for low temperature fluids such as LNG.

V. High purity and sanitary chemical pump media

Electronic grade hydrofluoric acid (Fe ion <1ppm), pharmaceutical injection, food additives (such as dairy products)

Recommended pumps:

1. Sanitary stainless steel centrifugal pumps (316L electropolished): meet the sanitary standards of the pharmaceutical/food industry.

2. Ceramic pumps: smooth silica surface prevents contamination and resists most strong acids (except HF).

Note: This article provides general chemical pump selection recommendations based on chemical pump media characteristics. Changyu Pump & Valve suggests that the selection of chemical pumps must also consider site conditions, operating parameters, pipeline layout and ambient temperature, not just the medium characteristics.

In the field of chemical production, the procurement of chemical centrifugal pumps is a crucial decision. When considering the purchase of chemical centrifugal pumps, many enterprises will turn their attention to small manufacturers, and there are numerous notable advantages behind this.

Ⅰ.Outstanding Cost Performance

Small manufacturers possess unique advantages in their cost structure. Compared with large enterprises, their operating costs are lower, without complex hierarchical management frameworks and large-scale marketing expenses. This enables them to provide customers with more affordable chemical centrifugal pumps while ensuring a certain profit margin. For enterprises with limited budgets, purchasing from small manufacturers can effectively reduce procurement costs and achieve higher capital utilization efficiency. Moreover, small manufacturers are often more willing to negotiate prices with customers. Since the scale of orders has a relatively significant impact on them, they will actively communicate with purchasers when facing reasonable price requests, striving to reach cooperation, which makes it possible for purchasers to obtain more favorable prices.

Ⅱ.Strong Customization Capability

The technological processes in chemical production are diverse, and the requirements for chemical centrifugal pumps also vary greatly. The flexibility of small manufacturers demonstrates great value in such situations. Their production arrangements are not as restricted by large-scale production as those of large manufacturers, and they can easily adjust production processes and procedures. If purchasers have requirements for special materials, unique size specifications, or specific performance parameters of centrifugal pumps, small manufacturers can respond promptly and carry out customized production. During the entire customization process, the simple internal communication chain of small manufacturers ensures the efficient and accurate transmission of information. Purchasers can directly communicate with technicians and production managers to quickly feed back changes in requirements, ensuring that the customized chemical centrifugal pumps can perfectly adapt to the production environment.

Ⅲ.Unique Professionalism

Many small manufacturers focus on the specific segment of chemical centrifugal pumps.Long-term in-depth cultivation has enabled them to accumulate profound professional knowledge in technical aspects. They concentrate their limited resources on the research development and production of specific types of chemical centrifugal pumps, and their understanding and mastery of the products often exceed those of some large comprehensive enterprises. This professionalism is reflected in the control of performance details of chemical centrifugal pumps. Whether it is the flow rate, head, efficiency of the pump, or special properties such as corrosion resistance and wear resistance, they have conducted in-depth research. During the selection stage, small manufacturers can provide precise suggestions to purchasers based on their professional knowledge, helping purchasers choose the most suitable centrifugal pumps for their own chemical processes, and avoiding subsequent usage problems caused by improper selection.

Ⅳ.Obvious Advantages in Delivery Time

In chemical production projects, time is money. Small manufacturers have unique advantages in terms of delivery time. Due to their relatively small production scale, it is more convenient to adjust production plans. When purchasers have urgent order requirements, small manufacturers can quickly arrange production to prioritize meeting the time requirements of customers. Meanwhile, some small manufacturers will reserve a certain amount of inventory according to common market demands. For some commonly used models of chemical centrifugal pumps, purchasers can quickly pick up the goods after placing orders, greatly shortening the waiting time and facilitating the smooth progress of chemical projects.

Ⅴ.Thoughtful After-sales Service

Small manufacturers are well aware of the importance of customers to their own development, so they often spare no effort in after-sales service. When customers encounter problems during the use of chemical centrifugal pumps, small manufacturers can respond quickly. They do not have cumbersome after-sales procedures, and technicians can quickly get in touch with customers to understand the problems and provide solutions. Moreover, the after-sales service of small manufacturers is more personalized. They can provide on-site installation guidance, equipment debugging, regular maintenance, and other comprehensive services according to the actual situation of customers. This thoughtful after-sales service not only can ensure the normal operation of chemical centrifugal pumps and extend the service life of equipment, but also can make purchasers feel meticulous care, laying a good foundation for long-term cooperation.

In conclusion, when purchasing chemical centrifugal pumps in China, small manufacturers, with their characteristics in terms of price advantages, customization capabilities, professionalism, advantages in delivery time and after-sales service, have become a high-quality procurement option that cannot be ignored, providing strong support for the stable production and development of chemical enterprises.

Ⅵ.Manufacturer Recommendation

At Anhui Changyu Pump and Valve Co., Ltd., our pumps are offered at favorable prices while maintaining excellent quality.

We can customize special materials, unique size specifications or specific performance parameters of centrifugal pumps according to the specific requirements of buyers.

Moreover, our company has been deeply engaged in the production of chemical centrifugal pumps for more than 20 years. This professionalism is reflected in the control of performance details of chemical centrifugal pumps. Whether it is the flow rate, head, efficiency of the pump, or special properties such as corrosion resistance and wear resistance, we have conducted in-depth research.

When there is an urgent order requirement, our company can quickly arrange production to prioritize meeting the customers' time requirements.

When customers encounter problems during the use of chemical centrifugal pumps, our company can respond quickly. We don't have cumbersome. 

The centrifugal pump is a core equipment widely used in the three major industries of water treatment, petrochemical industry and agricultural irrigation. Its high efficiency, energy saving and reliability make it widely used in many industries. As key equipment, centrifugal pumps are used to varying degrees in various industries, and their design and maintenance need to take actual working conditions into consideration. Therefore, in actual use, reasonable operating procedures are crucial. It can not only help users better understand and manage the operation of the equipment, but also effectively improve the service life and economic benefits of the equipment.

I: 7 major operating steps of centrifugal pump:

Step 1: "5 inspections" before starting the centrifugal pump

1. Check the status of the centrifugal pump and motor to ensure that there is no obvious abnormality and meet the working conditions

2. Check whether the connection of each part is good, whether the anchor bolts are firm, and whether the lubricating oil is sufficient (the oil level needs to be kept between 1/2-2/3) ‌

3. Fill the pump, check the water level, and the pipe and pump body must be filled with water (water can be seen from the exhaust hole with the naked eye)

4. Check the valve: the inlet valve is fully open, and the outlet valve is closed to 1/4 first (to prevent overload at startup)

5. Check the instrument: Is the pressure gauge zeroed? Is the voltage normal? Is the ground wire securely connected?

Step 2: Test the feel of the gear by turning the coupling manually for 2 to 3 turns. If it is normal, it will be smooth and without jamming. If jamming and friction sound occur, stop the machine immediately for inspection.

Step 3: Press the centrifugal pump switch, press the start button and release it immediately (no more than 2 seconds). Correct steering: The centrifugal pump body vibrates little and the sound is stable (refer to the direction of the arrow on the pump body). If reversal occurs, cut off the power immediately and replace the motor wiring.

Step 4: Formal start of the centrifugal pump, slowly open the outlet valve, and control the process within 30 seconds. At the same time, observe the pressure gauge: stable in the green area (such as 0.4-0.6MPa). If the pressure fluctuates, it may be air intake. If the current exceeds the red line, you need to close the valve immediately.

Step 5: During the operation of the centrifugal pump, you must "look at three things and listen at one time". Look at the pressure: fluctuation ≤10%, look at the temperature: bearing temperature ≤75℃, look at the leakage: leakage at the machine seal is ≤3 drops per minute, and listen to the abnormal sound: humming sound is normal, metal friction sound is dangerous!

Step 6: The shutdown sequence must be correct. First close the outlet valve (to prevent water hammer impact), then press the stop button, close the pressure gauge hand valve, wait until the pump temperature drops below 80 degrees before stopping the cooling water, and finally close the inlet valve as needed (if it is out of service for a long time), and drain the inside of the pump body.

Step 7: Winter special operation, when the ambient temperature is less than 5℃: the water in the centrifugal pump should be drained in time to prevent freezing and cracking, and then low-temperature grease should be added to the bearings

II: 5 taboos during the operation of centrifugal pumps

1: No idling must not exceed 30 seconds, and the centrifugal pump body should be affixed with a "No idling" label and a dry-running protector

2: Do not use the valve to "hold pressure" to adjust the flow, which will seriously cause the motor to overload and burn out. If there is a need for adjustment, the centrifugal pump variable frequency motor or cutting impeller should be replaced

3: Pumping liquid containing particles without a filter can easily break the impeller and incur high replacement costs

4: The centrifugal pump directly pumps high-temperature liquid. During the use of the centrifugal pump, the temperature difference of ＞50℃ will explode the seal, and it is generally preheated in advance (temperature rise ≤3℃ per minute)

5: Maintenance under pressure, this illegal operation is expressly prohibited, and the correct operation should be shutdown → pressure relief → hang up → double confirmation

III. FAQ

Question 1: No water after starting?

- Check 1: Is the centrifugal pump filled with water? (Re-exhaust)

- Check 2: Is the inlet valve blocked? (Disassemble and check)

- Check 3: Is the motor reversed? (Change the line sequence)

Question 2: Sudden large vibration during operation?

Possible causes:

1. Impeller blocked (stop and clean)

2. Loose anchor bolts (tighten diagonally)

3.Bearing wear (locate the abnormal sound point with a stethoscope)

Question 3: Severe water leakage at the seal?

- Temporary treatment: tap the sealing gland lightly (adjust the gap)

- Fundamental solution: replace the mechanical seal

(Practical dry goods that ordinary people can understand)

Why is your chemical pump always "unsuitable"? The high-performance "centrifugal pump" bought for 150,000 yuan leaked and stopped working in less than 3 months? The repair cost was 80,000 yuan. What's the problem? Is it really the quality of the manufacturer? It's not necessarily the case. It is very likely that the problem is in the selection process. The parameters of the chemical pump and the actual working conditions are "incompatible". Choosing the wrong model of chemical pump will waste money at best and cause safety accidents at worst!

Misunderstanding 1: Only look at the flow and head, and ignore everything else

Many users often rely on experience to estimate the flow and head of chemical pumps, but if they do not fully consider the actual situation, it may affect the matching of pump performance. For example, in the case of high-viscosity liquids, the starting torque requirement is high. If the power is not adjusted in time during selection, it may cause motor overload or pump damage.

When choosing a chemical pump, you must ask these questions:

- Medium composition (solid content? Corrosive? Flammable and explosive? Acid, alkali, salt, toxic and sticky, ask everything)

- Working temperature (normal temperature? High temperature? Low temperature? Low temperature needs insulation, high temperature prevents cavitation)

- Flow rate and head (through actual measurement or calculation with professional software, ensure that the performance curve of the pump matches the actual working conditions)

- Running time (continuous operation or intermittent use?)

- Installation environment (indoor? Outdoor? Explosion-proof area?)

Misunderstanding 2: Not fully considering pipeline pressure drop and other technical parameters:

Because of the mismatch of pipelines, the actual performance of chemical pumps is not as expected. In addition to the chemical pumps themselves, you should also pay attention to the length, diameter, pressure drop, etc. of the pipeline when selecting to ensure a comprehensive selection.

Misunderstanding 3: Ignoring daily maintenance costs

You will understand after doing the math:

While considering the initial investment, you also need to consider the later maintenance and operation costs of the equipment. You need to comprehensively evaluate the costs before and after, and choose a chemical pump with high cost performance.

Misunderstanding 4: Not paying attention to the details of chemical pump selection

The last thing to consider is the energy consumption requirements under environmental protection. Exceeding the energy consumption standard is not allowed in some areas, so the product must meet the latest GB 19762 energy efficiency standard. Secondly, when the chemical pump is repaired, can the manufacturer provide a 10-year spare parts supply commitment? If there is a need for transformation, can it adapt to the factory's intelligent transformation needs (such as adding sensors)? How long is the warranty period? How long is the delivery period? What should I do if the performance does not meet the standard? These questions must be confirmed with the manufacturer one by one

According to the above methods, the selection misunderstandings of chemical pumps can basically be avoided.

As the "liquid porter" in the industrial field, centrifugal pumps are responsible for more than 70% of the world's fluid transportation tasks. From waterworks to petroleum refining, this rotating machinery's impellers spin thousands of times per minute, creating astonishing industrial efficiencies. This article will disassemble the advantages and disadvantages of centrifugal pumps in plain language, and attach a practical selection parameter table and a guide to avoid pitfalls.

1. Advantages of centrifugal pumps

1. Simple structure:

The centrifugal pump has only 6 main components: impeller, pump body, shaft, bearing, seal, coupling, simple structure, few failures, durable, and low manufacturing and later maintenance costs.

2. Uniform flow

The flow and pressure of the centrifugal pump are stable, and the operation is smooth, which is very important for use scenarios that require stable flow output.

3. High efficiency

The efficiency curve is parabolic: the best efficiency point (BEP) can reach 92%. The efficiency of the centrifugal pump is much higher than other types of pumps, which can reach more than 50%, which can save a lot of energy.

4. Wide range of applications

According to the structure: single-stage/multi-stage, single-suction/double-suction

According to the medium: corrosion-resistant pump, impurity pump, high-temperature pump

According to the installation: vertical, horizontal, pipeline

Centrifugal pumps can transport a variety of liquids such as clean water, sewage, seawater, oil and chemicals, and are widely used in municipal engineering, agricultural irrigation, industrial production, ships and other fields.

5. Stable flow and easy adjustment

Centrifugal pumps can work stably in a wide flow range, and the flow can be easily adjusted by adjusting the speed, impeller diameter or changing the opening of the pump outlet valve.

2. Disadvantages of centrifugal pumps

1. Before running the centrifugal pump, the pump must be filled with liquid, because if the centrifugal pump runs dry for 5 minutes, the life of the bearing will be reduced by 80%, greatly increasing the failure rate of the centrifugal pump.

2. Centrifugal pumps are sensitive to cavitation, which causes damage to the impeller. Cavitation must be prevented during use. The required NPSHr is 3-5 times higher than that of the positive displacement pump!

Anti-cavitation formula:

Actual NPSHHa = atmospheric pressure (10.33m) - vaporization pressure - suction line loss - installation height

Safety criteria: NPSHa ≥ NPSHr + 0.5m

3. Centrifugal pumps are sensitive to high-viscosity liquids. The higher the viscosity, the lower the efficiency and performance. They are not suitable for high-viscosity fluids and need to choose other types of pumps (such as screw pumps, gear pumps, etc.).

4. The head of a centrifugal pump is greatly affected by the flow rate. When the flow rate deviates from the design, the head will drop significantly.

III. Comparison table of centrifugal pump selection parameters

Centrifugal pumps are like "panacea" in the industrial field. Their universal advantages coexist with the defects of working condition sensitivity. Therefore, detailed working condition simulation must be carried out when purchasing. For special medium transportation, the "centrifugal pump +" combination solution can be considered. It is recommended to ask the manufacturer to recommend a suitable centrifugal pump combination solution.

Magnetic pumps, also known as magnetic drive pumps, are widely used in chemical, pharmaceutical, electroplating and other industrial fields. With its "zero leakage" design, it has become a star equipment for high-risk media transportation. This article introduces the advantages and disadvantages of magnetic pumps in detail to solve customers' purchase questions!

1. Advantages of magnetic pumps

1. "Zero leakage" design

The magnetic pump completely eliminates the traditional mechanical seal structure and uses a permanent magnetic coupling to achieve power transmission. Its core advantage is that it is particularly suitable for conveying highly corrosive, flammable, and explosive media.

2. Low operating cost

The magnetic pump uses a permanent magnetic structure, there is no contact and friction, the power consumption is small, and the energy consumption is reduced by 20-35%. Under the premise of the working conditions, it can significantly reduce the operating cost.

3. Long service life

Because the magnetic pump has no mechanical friction design, the bearing life is extended by 3-5 times, and the overall service life will be longer.

4. Excellent corrosion resistance

Optional materials include:

- Hastelloy C276 (resistant to 98% concentrated sulfuric acid)

- Polytetrafluoroethylene lining (resistant to hydrofluoric acid)

- Silicon carbide sealing surface (resistant to strong alkali)

II. Disadvantages of magnetic pumps

1. High initial investment cost. Due to the cost of accessories, the price of magnetic pumps is generally 2-3 times that of ordinary centrifugal pumps

2. Medium and temperature adaptability restrictions. Magnetic pumps should pay attention to the following on the medium: solid particle content must be less than 0.1%, viscosity must be less than 500cP, and the temperature range is -20℃～250℃ (special design can reach 350℃)

3. Low efficiency. Due to the limited size of impellers that can be used for magnetic pumps, the flow rate of magnetic pumps is usually lower than that of traditional centrifugal pumps, resulting in relatively low efficiency.

4. The magnetic pump and the motor are connected by a coupling. The coupling requires high precision in alignment. Improper alignment will cause damage to the bearing at the inlet and wear of the single-sided leakage prevention isolation sleeve.

3. Comparison table of key selection parameters

The "zero leakage" advantage of magnetic pumps in terms of safety and environmental protection makes them standard equipment for modern chemical production. Although the initial investment of magnetic pumps is relatively high, the comprehensive benefits brought by magnetic pumps are still very significant through the cost analysis of the entire life cycle such as environmental protection, safety, and energy saving. It is recommended that manufacturers select pumps reasonably according to actual working conditions when purchasing.

As an "expert in solid medium transportation", mortar pumps are widely used in smelting, mine tailings treatment, river dredging, thermal power generation and other scenarios. Due to its wear-resistant and corrosion-resistant characteristics, mortar pumps have become the favorite of many industrial and mining manufacturers. This article dismantles the advantages and disadvantages of mortar pumps in detail to help you understand the characteristics of the equipment and avoid misunderstandings in pump selection.

1. Advantages of mortar pumps

1. High wear resistance: Mortar pumps use high wear-resistant materials in the design and material use of impellers, pump casings, and linings, and the wear resistance is several times higher than that of other pumps.

2. Large flow rate and high efficiency

The flow channel width is 1.5 times that of the clean water pump with the same power. The mortar pump has a large flow rate and head, fast speed and large flow rate

The maximum particle diameter comparison table can be used:

3. Excellent corrosion resistance

The mortar pump can withstand a variety of corrosive media (acids, alkalis, salts) at specific temperatures and solvent concentrations, and is immersed in 80 organic solvents at 20℃ and 90℃ for 30d. There is no abnormality on the surface and the performance is stable.

4. Multi-function and strong adaptability

Because of the wear resistance and corrosion resistance of the mortar pump, as well as the large flow rate and head, the mortar pump is highly functional and can transport mortars of different properties.

5. Good sealing performance: The mortar pump uses a combination of auxiliary impeller + mechanical seal to prevent leakage of mortar in the pump and ensure the stable operation of the equipment.

2. Disadvantages of mortar pump:

1. Mortar pumps have high energy consumption and consume 15-25% more electricity than clean water pumps at the same power.

2. The operation of the mortar pump is demanding and requires certain professional skills and experience. Improper operation may lead to problems such as clogging of the mortar pump and poor pumping. In serious cases, it may even damage the equipment.

3. Mortar pumps have high maintenance costs and require regular maintenance and maintenance. The replacement frequency of spare parts is also relatively high. The replacement cycle table of wearing parts is as follows:

4. The scope of application of mortar pumps is limited. Mortar pumps are only suitable for small and medium-sized construction sites and have certain requirements for power supply. If the construction site is short of electricity, it will also affect the use of mortar pumps.

3. Selection parameter table of mortar pumps

Although mortar pumps have limitations such as high energy consumption and frequent maintenance, their irreplaceability under harsh working conditions is unquestionable. It is recommended that when purchasing, focus on core parameters such as the material of the flow-passing parts and the configuration of the sealing system. If necessary, the manufacturer can be asked to provide a media suitability test report.

In the field of industrial equipment, it is crucial to choose a reliable partner. As an industry-leading pump and valve manufacturer, Changyu Pump and Valve has won the trust of many partners with its excellent product quality, perfect service system and strong supply chain support. So, what conveniences can you enjoy as a partner of Changyu Pump and Valve?

1. High-quality products to ensure engineering stability

Changyu Pump and Valve focuses on the research and development and manufacturing of high-performance pump and valve products, such as mortar(slurry) pumps, submersible pumps and other products are strictly produced in accordance with international standards to ensure high durability, high efficiency and long life to obtain CE certification, etc. You can browse our official website to learn about the products. Partners do not need to worry about product quality issues and can rest assured to apply them to various industrial engineering projects.

2. Perfect supply chain to ensure timely delivery

Changyu Pump and Valve has a stable raw material supply channel and a modern production plant, which can efficiently meet order requirements. In addition, the company has set up storage centers in many locations to ensure rapid response to customer needs, shorten delivery cycles, and reduce inventory pressure. This year, it will also move to a larger new factory. If you visit, please pay attention to our dynamics.

3. Personalized customization service to meet special needs

For customers with special needs, Changyu Pumps and Valves provides non-standard customization services. For example, we recently combined the suggestions of technical experts in the company to provide customers with 904L materials with higher chromium metal content than 1.4593 materials, and the price is more satisfactory, and finally successfully met customer requirements. We can also design and produce exclusive pump and valve equipment according to specific working conditions. Whether it is material, specification or function, it can be customized according to requirements to create higher business value for partners.

4. Competitive price system to enhance market advantages

While ensuring product quality, Changyu Pumps and Valves optimizes production and supply chain costs, making the products have a strong cost-effectiveness in the market. Partners can win the market at a more competitive price and improve profitability. We focus on sincere and long-term cooperation. It is under the role of a complete production supply chain that we can keep costs down and make continuous progress.

5. Brand empowerment and sharing of market resources

Changyu Pumps and Valves has a high brand awareness in the industry. Enterprises cooperating with the company can use its brand influence to enhance their market competitiveness. In addition, partners can learn more about high-quality products through Changyu Pumps and Valves in the Chinese market. The influence and connections built over decades will help you achieve your goals faster.

Choosing Changyu Pumps and Valves means choosing a stable, efficient, and win-win cooperation model. Whether it is an engineering contractor, equipment dealer, or end user, becoming a partner of Changyu Pumps and Valves can enjoy high-quality products, strong technical support, a stable supply chain, and a full range of service guarantees. We look forward to your joining us and working with Changyu Pumps and Valves to create a better future!

Magnetic pumps play an important role in industrial production. To ensure their stable and efficient operation, daily maintenance work needs to be carried out from multiple aspects.

Monitoring of Operating Parameters

(1) Flow Monitoring

Flow is a key parameter for measuring the working efficiency of magnetic drive pumps. A flowmeter is used to measure and record the flow of the pump regularly. If there are abnormal changes in the flow, the cause needs to be investigated in a timely manner. For example, if the flow gradually decreases, it may be due to the accumulation of impurities in the impeller from the conveyed medium, affecting the normal delivery of the liquid. At this time, the impeller should be cleaned or the filter at the inlet should be checked for blockage. If there is a sudden drop in flow, it may be that the magnetic coupling has failed, affecting the rotational speed of the impeller, and the coupling needs to be inspected and repaired.

(2) Pressure Inspection

Pay close attention to the magnetic drive pumps's inlet and outlet pressures. High outlet pressure may be due to blockage of the outlet pipeline, such as scale build-up or accumulation of foreign objects in the pipeline. The pipeline should be cleaned in a timely manner. Low outlet pressure may be due to damage to the impeller, poor sealing, or internal leakage. Low inlet pressure may cause cavitation, and the tightness of the inlet pipeline and the patency of the filter need to be checked. Timely detection of problems through pressure changes can effectively avoid further damage to the equipment.

(3) Temperature Monitoring

Regularly detect the temperatures of the magnetic drive pump body, isolation sleeve, and motor. An abnormal increase in the pump body temperature may be due to bearing wear, insufficient lubrication, or increased friction between the impeller and the pump casing. An excessively high temperature of the isolation sleeve may be due to increased friction between the internal magnetic rotor and the isolation sleeve or a failure of the cooling system. An excessively high motor temperature may be due to overload, poor heat dissipation, or an electrical fault. When the temperature exceeds the normal range, the machine must be stopped for inspection to prevent component damage.

Visual Inspection

(1) Leakage Inspection

Leakage inspection of magnetic drive pump is of crucial importance. Check the pump body, pipeline connection parts, and possible shaft seal locations. If leakage is found, in the sealing gasket, it may be that the gasket is aged or damaged and needs to be replaced in a timely manner. If there are cracks in the pump body causing leakage, minor cracks can be repaired, while severe ones require consideration of replacing the pump body.

(2) Inspection of Component Condition

Check the integrity of components such as the pump body, impeller, and coupling. The pump body should show no signs of deformation or corrosion. If there is corrosion, corresponding anti-corrosion measures can be taken or replacement can be carried out according to the degree of corrosion. The blades of the impeller should not be worn or broken, otherwise, the performance of the pump will be reduced. The coupling should be checked for looseness and wear to ensure a tight connection and good alignment. If there are problems, adjustments or replacements should be made in a timely manner.

Lubrication Maintenance

(1) Lubricating Oil Management

The lubricating oil in the bearing box has a great impact on the normal operation of the magnetic pump. Regularly check the oil level to ensure that it is within the range specified by the oil gauge. If it is too low, the bearings will not be lubricated adequately, and if it is too high, overheating and oil leakage may occur. At the same time, observe the oil quality. If the oil color turns black, there are impurities, or emulsification occurs, the lubricating oil should be replaced in a timely manner. Generally, it is replaced every 1,000 - 2,000 hours of operation. When replacing, the bearing box should be thoroughly cleaned.

(2) Grease Replenishment (if applicable)

For parts lubricated with grease, regularly check the remaining amount of grease. When the grease is insufficient, replenish it according to the regulations, taking care to avoid mixing in impurities to ensure the lubrication effect.

Maintenance of Key Components

(1) Maintenance of Magnetic Coupling

The magnetic coupling is the core component of the magnetic pump. Regularly check its magnetic strength and coupling condition. This can be judged by observing the operating state of the pump, such as whether the rotational speed is stable and whether there are abnormal vibrations. If a decrease in magnetic strength or decoupling phenomenon is found, it may be that the magnets are damaged or aged, the magnetic coupling components need to be replaced, and the installation gap should be ensured to be correct.

(2) Inspection of Isolation Sleeve

The condition of the isolation sleeve is directly related to the safety of the magnetic pump. Check whether the isolation sleeve is worn, corroded, or cracked. Slight wear can be observed for the time being, but if the wear is severe or there are cracks, it must be replaced immediately to prevent the medium from leaking into the magnetic drive part.

Cleaning and Environmental Maintenance

(1) Pump Body Cleaning

Keep the surface of the pump body clean. Regularly wipe it with a clean cloth to remove dust, oil, and other substances to prevent impurities from entering the pump and affecting its operation.

(2) Environmental Maintenance

Keep the operating environment of the magnetic pump dry and well-ventilated, and avoid dampness, corrosive gases, etc. from causing damage to the pump body and electrical components.

Electrical System Maintenance

(1) Motor Inspection

Check whether the motor wiring is firm and the insulation is good. Regularly measure the insulation resistance of the motor to prevent electric leakage. At the same time, check the heat dissipation situation of the motor to ensure its normal heat dissipation.

(2) Circuit Inspection

Check the start-stop control circuit and protection devices of the magnetic pump to ensure that the control elements work normally and the protection devices function properly to ensure the safe operation of the magnetic pump.

Through the above comprehensive daily maintenance measures, the performance and service life of the magnetic pump can be effectively guaranteed, providing strong support for the stable progress of industrial production. Changyupump is a professional industrial chemical pump manufacturer, get more products from us quickly! Email:jade@changyupump.com