Advantages of magnetic drive pump
(1) The mechanical seal of the pump is eliminated, and the inevitable running, emitting, dripping and leaking defects of the mechanical seal of the centrifugal pump are completely eliminated. It is a better choice to achieve no leakage and zero pollution, and it can realize the intrinsic safety of the equipment.
(2) The flow parts of the pump are made of stainless steel and engineering plastics, which can achieve corrosion resistance.
(3) The magnetic coupling and the pump body are combined into one body, which has the characteristics of compact structure and the magnetic coupling can protect the transmission motor from overload.
(4) The matching magnetic drive pumps monitoring system can perform online monitoring of flow, temperature, pressure, power and bearing wear, which further improves the safety and reliability of the pump.
(5) There are fewer wearing parts, convenient maintenance and extended service life.
Magnetic drive pump manufacturers and suppliers from China
Polypropylene Magnetic drive Pumps have become a standard for applications requiring corrosion resistant pumps. Our PP magnetic drive pumps offer a wide range of capabilities from compact configurations to large chemical and Acid process pump series. Polypropylene mag drive sealless pump capabilities is unmatched in the industry making it a leader in Industrial Pumps Technology.
Pay attention to the following points when using pneumatic diaphragm pumps:
1. Ensure that the large particles contained in the fluid do not exceed the maximum safety of the pump to pass the particle diameter standard.
2. The inlet pressure should not exceed the high allowable working pressure of the pump. Compressed air higher than the rated pressure may cause personal injury and property loss and damage the performance of the pump.
3. Ensure that the pumping piping system can withstand the high output pressure reached, and ensure the clean and normal working conditions of the driving air system.
4. Electrostatic sparks may cause explosions and cause personal injury and death accidents and property losses. If necessary, use a wire with a large enough cross-sectional area to properly and reliably ground the ground screw on the pump.
5. Grounding requirements comply with local laws and regulations and some special requirements on site.
6. Tighten the pump and all connecting pipe joints to prevent electrostatic sparks from being generated by vibration and impact. Use antistatic hose.
7. pneumatic diaphragm pumpshould periodically check and test the reliability of the grounding system, and the grounding resistance is required to be less than 100 ohms.
8. Keep good exhaust and ventilation, away from flammable, explosive and heat sources.
9. The exhaust of the pump may contain solids. Do not point the exhaust to the working area or people to avoid personal injury.
10. When the diaphragm fails, the conveyed materials will be ejected from the exhaust muffler.
11. When transporting flammable and toxic fluids, please connect the outlet to a safe place away from the work area.
12. Please use at least 3/8″ inner diameter pipe with smooth inner wall to connect the exhaust port and the muffler.
13. The high pressure of the fluid may cause serious personal injury and property damage. Please do not perform any maintenance work on the pump and the material pipe system when the pump is pressurized. For maintenance, first cut off the air intake of the pump and open it. The bypass pressure relief mechanism relieves the pressure of the pipeline system and slowly loosens the connected pipe joints.
14. Please do not send the pump directly to the manufacturer for repair if the pump is for transporting harmful and toxic fluids. Properly dispose of it in accordance with local laws and regulations, and use genuine parts from Shanghai Wangquan Pump Company to ensure service life.
15. Pumps that use aluminum alloy materials for the liquid transportation part. Please do not use them to transport liquids containing Fe3+, halogenated hydrocarbons and other halogenated hydrocarbon solvents, which will cause corrosion and cause the pump body to burst.
16. Ensure that all parts contacting the conveying body will not be corroded and damaged by the conveyed fluid.
17. Ensure that all operators are familiar with the operation and use of the pump and master the safety precautions for the use of the pump. If necessary, provide necessary protective equipment. pneumatic diaphragm pump manufacturers and suppliers from China
AODD pumps are self-priming and therefore have good suction capabilities, as well as being able to dry run without doing any damage to the pump making them useful for batch operations in industry. It is common for smaller sized air operated double diaphragm pumps to be portable and moved to any air power supply.
Application of aodd pump in food and beverage industry:
As a new type of liquid conveying equipment, aodd pumps have become more and more widely used in the beer, beverage, and food industries.
The pneumatic diaphragm pump powered by the air source has its unique advantages, especially the extremely low shear force on the material, and it is suitable for the transmission of various particulate materials, such as eight-treasure porridge, sauces, and pulp-containing beverages.
The self-priming start and the ability to allow idling greatly reduce the difficulty of operation, even a small amount of leftover material at the bottom of the tank can be exhausted. It does not produce electric sparks and does not overheat after working for a long time, which makes the transportation of alcohol more safe and reliable.
Small size, easy maintenance, will not pollute the working environment due to dripping, and more in line with the characteristics of safe and clean food and beverage industry.
Multi-material selection of the pump body material, food-grade flow parts, withstand temperature up to 120 ℃, to meet the different needs of various materials.
Diaphragm pump manufacturers and suppliers from China
Air Operated Double Diaphragm Pumps ( AODD PUMP) not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self-pumping pump, gear pumps,diving pump, shield pump, slurry pump and impurity pump, etc.
Aodd pump is a new type of conveying machinery, which is a novel type of pump in China. Using compressed air as the power source, it can be used for various corrosive liquids.
The pneumatic diaphragm pump has four materials: engineering plastics, aluminum alloy, stainless steel, and alloy.
The pneumatic diaphragm pump adopts nitrile rubber, neoprene rubber, fluorine rubber, polytetrafluoroethylene, polyhexaethylene, etc. according to different liquid media to meet the needs of different users.
It is installed in various special occasions and used to pump various media that cannot be pumped by conventional pumps, and has achieved satisfactory results.
The air operated diaphragm pumps manufacturer by SAIKEN PUMPS use compressed air as power source, and it is the most advanced type of diaphragm pumps in market for the moment. It adopts three-way air pilot valve to achieve real no dead stop and faster reversing.
Problems that need to be paid attention to when the magnetic drive pump is running:
Prevent particles from entering
1. Ferromagnetic impurities and particles are not allowed to enter the magnetic drive and bearing friction pairs.
2. After transporting the medium that is easy to crystallize or precipitate, flush it in time (pour clean water into the pump cavity after stopping the pump, and drain it after 1 minute of operation) to ensure the service life of the sliding bearing.
3. When transporting the medium containing solid particles, it should be filtered at the inlet of the pump flow pipe.
Prevent dry friction
1. Idling is strictly prohibited.
2. It is strictly forbidden to evacuate the medium.
3. With the outlet valve closed, the pump should not run continuously for more than 2 minutes to prevent the magnetic actuator from overheating.
Prevent demagnetization
1. The magnetic torque cannot be designed too small.
2. It should be operated under specified temperature conditions, and the medium temperature is strictly prohibited from exceeding the standard. A platinum resistance temperature sensor can be installed on the outer surface of the magnetic pump isolation sleeve to detect the temperature rise in the annulus area, so as to alarm or shut down when the temperature exceeds the limit.
China saiken Pumps has many years of experience in Plastic Magnetic Drive Pumps (Mag drive pumps, also known as magnetic coupled) and is the first choice for the most robust and efficient pump for your chemical application
As the name suggests, the chemical magnetic drive pump is a pump with chemical production performance, which is mainly used for the transportation of corrosive liquids. Chemical magnetic pump is a kind of magnetic pump that has appeared in recent years and it uses excellent corrosion-resistant materials.
1. Assembly sequence:
1. Heat the rolling bearing in hot oil until it reaches 80 degrees, and take it out of the shaft housing.
2. Press fit the shaft with the bearing into the suspension.
3. Put paper pads on the two bearing end covers and tighten them on the suspension with bolts. Pay attention to using the paper pads to adjust the gap between the bearing and the bearing end cover (that is, the amount of shaft movement in the suspension) 0.2-0.4 mm.
4. Install the water retaining ring, packing gland, and packing ring on the shaft, and then fasten the pump cover and the suspension together.
5. Put a “0” type sealing ring on the groove of the inner hole of the shaft sleeve, and put the shaft on the shaft.
6. Insert the impeller key, install the impeller, the anti-return washer, tighten with the impeller nut, and then bend the exposed part of the anti-return washer to prevent the leaf nut from loosening.
7. Put the complete rotor part into the pump body and fasten it with screws and nuts.
8. Fix the feet on the suspension with screws and spring washers.
9. Install the pump coupling key and install the pump coupling.
2. Disassembly:
1. Check whether the joints of the pump and pipeline are loose. Rotate the pump by hand to see if the pump is flexible, and then try to see the rotation of the motor.
2. Add bearing lubricating oil to the suspension, and observe that the oil level should be between the two engraved lines of the oil mark.
3. Unscrew the water diversion screw plug of the pump body, and irrigate the water.
4. Close the gate valve of the outlet pipe, the outlet pressure gauge and the inlet vacuum gauge.
5. Turn on the motor. When the pump is running normally, the outlet pressure gauge and the inlet vacuum gauge will gradually open the gate valve after the proper pressure is displayed, while checking the motor load.
6. Try to control the flow and head of the pump within the range indicated on the pump label to ensure that the pump runs for a long time near the high efficiency point in order to obtain excellent energy-saving effects.
7. During the operation of the pump, the bearing temperature does not exceed 35 degrees of ambient temperature, and the limit temperature does not exceed 80 degrees.
8. If abnormal sound is found in the pump, stop immediately and check the cause.
9. To stop using the pump, first close the gate valve and pressure gauge, and then stop the motor.
10. During the first month of operation, the pump should change the lubricating oil after 100 hours. After that, change the oil every 500 hours.
11. Regularly adjust the packing gland to ensure that the leakage in the packing chamber is normal.
12. When the pump is used in the cold winter season, after stopping, the screw plug at the lower part of the pump body must be unscrewed to drain the water to prevent freezing and cracking.
13. If the pump is not used for a long time, the pump must be completely disassembled, the water should be wiped off, the rotating parts and the joints should be coated with grease and installed, and stored properly.
Polypropylene Magnetic drive Pumps have become a standard for applications requiring corrosion resistant pumps. Our PP magnetic drive pumps offer a wide range of capabilities from compact configurations to large chemical and Acid process pump series. Polypropylene mag drive sealless pump capabilities is unmatched in the industry making it a leader in Industrial Pumps Technology.
1) Check whether there is any looseness in the pipes and joints of thestainless steel magnetic pump. Turn the magnetic pump by hand to see if the magnetic pump is flexible.
(2) Add bearing lubricating oil to the bearing body, observe that the oil level should be at the center line of the oil mark, and the lubricating oil should be replaced or replenished in time.
(3) Unscrew the screw plug of the pump body of the magnetic pump, and fill with water (or slurry).
(4) Close the gate valve, outlet pressure gauge and inlet vacuum gauge of the outlet pipe.
(5) Jog the motor and try to see if the rotation direction of the motor is correct.
(6) Turn on the motor. When the magnetic pump is running normally, open the outlet pressure gauge and the inlet vacuum pump to see the proper pressure, then gradually open the gate valve, and check the motor load at the same time.
(7) Try to control the flow and head of the magnetic pump within the range indicated on the label to ensure that the magnetic pump runs at the highest efficiency point in order to obtain the greatest energy saving effect.
(8) During the operation of the magnetic pump, the bearing temperature should not exceed 35C, and the maximum temperature should not exceed 80C.
(9) If abnormal sound is found in the magnetic pump, stop immediately and check the cause.
(10) To stop using the magnetic pump, first close the gate valve and pressure gauge, and then stop the motor.
(11) During the first month of operation, the magnetic pump should change the lubricating oil after 100 hours, and then change the oil every 500 hours thereafter.
(12) Adjust the packing gland frequently to ensure that the leakage in the packing chamber is normal (it is better to leak out as a drip).
(13) Regularly check the wear of the shaft sleeve, and replace it in time when the wear is large.
(14) When the magnetic pump is used in the cold winter season, after stopping, unscrew the drain plug at the bottom of the pump body to drain the medium to prevent freezing and cracking.
(15) If the magnetic pump is out of service for a long time, it is necessary to disassemble all the pumps, wipe off the water, apply grease to the rotating parts and joints, and store them properly.
Magnetic drive pump manufacturers and suppliers from China
china saiken pumps made Magnetic drive pump is ideal for chemical recirculation and chemical transfer. The Series of Numatic Pumps has pumped Acetic Acid, Citric Acid, Ethylene Glycol, Formaldehyde, Hydrochloric Acid (Muriatic), Nitric Acid, Phosphoric Acid, Potassium Chloride, Potassium Hydroxide, Sodium Hydroxide (Caustic Soda), Sodium Chloride, Sulfuric Acid, Fresh Water, Salt Water, DI Water, and many more chemicals.
The basis for the selection of magnetic drive pumps should be considered from five aspects according to the process flow and water supply and drainage requirements, including liquid delivery volume, device head, liquid properties, piping layout, and operating conditions. 1. Flow rate is one of the important performance data of magnetic drive pump, it is directly related to the production capacity and conveying capacity of the whole device. For example, in the process design of the design institute, the normal, minimum and maximum flow rates of the pump can be calculated. When choosing a magnetic pump, take the maximum flow rate into consideration and take into account the normal flow rate. When there is no maximum flow rate, 1.1 times the normal flow rate can usually be taken as the maximum flow rate. 2. The head required by the device system is another important performance data for pump selection. Metering pumps generally need to be enlarged by 5%-10% of the head to select the type. 3. Liquid properties, including the name of the liquid medium, physical properties, chemical properties and other properties. The physical properties include temperature c, density d, viscosity u, solid particle diameter and gas content in the medium, etc. This relates to the lift of the system, the effective gas Calculation of residual allowance and suitable pump type: chemical properties, mainly refer to the chemical corrosive and toxic rotor pump of the liquid medium. It is an important basis for the selection of pump materials and the type of shaft seal. 4. The piping layout conditions of the device system refer to the liquid delivery height and the liquid delivery distance from the liquid delivery direction, the lowest liquid level on the suction side, the highest liquid level on the discharge side, etc. Some data and piping specifications and their length, materials, pipe fitting specifications, and quantity Etc., in order to carry out the combing head calculation and cavitation allowance check. 5. There are many operating conditions, such as liquid operation T saturated steam power P, suction side pressure PS (absolute), discharge side container pressure PZ, altitude, ambient temperature operation is gap or continuous, and the position of the magnetic pump is The fixed or removable screw pump.
Our magnetic drive pump ranges are available in various materials, including Polypropylene, GFRPP, PFA, PVDF, ETFE, Carbon, Ceramic, Silicon Carbide, Viton and EPDM to suit all corrosive chemical pumping applications.
Magnetic drive pumps and canned motor pumps are collectively referred to as non-leakage pumps, or non-shaft seal pumps. Mainly used to transport toxic, flammable, explosive, volatile, corrosive, radioactive or valuable liquids. It is an important equipment for the chemical, petrochemical, pharmaceutical and other industries to meet environmental protection requirements and ensure the safe transportation of materials. In recent years, the sales of leak-free pumps worldwide have increased several times, and the market prospects are promising.
Canned motor pump is a non-leakage pump developed earlier and has matured in technology. For a long period of time, it has been the preferred pump type for non-leakage pumps and has a large market share. It has the advantages of no leakage, the motor and the pump are coaxial, the structure is compact, and there is no need to bring a common base.
Magnetic pumps appeared in the 1940s. Due to the poor performance of permanent magnetic materials at that time, only micro or small magnetic pumps could be developed. It was not until the emergence of samarium-cobalt magnetic materials in 1978 and the emergence of neodymium-iron-boron magnetic materials in 1983 that magnetic pumps developed rapidly. The magnetic performance of this new type of magnetic material is particularly high, so that the volume of the permanent magnet coupling can be made small, the air gap can be enlarged, and the manufacturing is convenient. Moreover, it adopts the universal Y series motor matching. Low, short delivery time, on-site inspection and repair, so it has become a strong competitive product of canned motor pumps. Although magnetic pumps and canned motor pumps share the non-leakage pump market, industry experts point out that: in all application areas of non-leakage pumps, magnetic pumps can completely replace canned motor pumps and become the main pump type of non-leakage pumps.
Our magnetic drive pump ranges are available in various materials, including Polypropylene, GFRPP, PFA, PVDF, ETFE, Carbon, Ceramic, Silicon Carbide, Viton and EPDM to suit all corrosive chemical pumping applications.
Preparation before operation of the magnetic drive pump
a Check whether the bolts and connectors of each part are loose, and tighten them if they are loose.
b Rotate the coupling by hand to make the pump rotor rotate a few times to see if the rotation is flexible, whether there is a sound or unevenness, to determine whether there is any foreign matter in the pump.
Startup procedure of magnetic pump
a Open the suction valve, close the drain valve, pressure gauge valve, and vacuum gauge valve to prime the pump.
b. Slightly open the discharge valve, jog the motor, and check the direction of the motor (clockwise from the direction of the motor).
c After the steering is correct, start the motor and open the pressure gauge and vacuum gauge valves.
d After the pressure rises and the machine is considered to be operating stably, slowly open the discharge valve and the pump will work normally.
The pump operating point should fluctuate up and down at the operating point. Too small or too large flow will easily cause damage to the pump.
Matters needing attention in the operation of magnetic pump
a. No-load operation of the pump is never allowed. Once the fluid is cut off or there is friction in the pump, stop the operation and switch the pump to prevent further damage to the pump due to no-load.
b If there is a medium that is easy to solidify in the pump, steam must be vented before starting the pump, and the pump can be started only after the medium is fully melted.
c During the test operation of the magnetic pump, check the entire system for air leakage and liquid leakage, whether the performance meets the requirements, whether the unit has large vibration and abnormal noise, and it can be put into operation after all aspects are deemed qualified.
Maintenance and maintenance of magnetic pump
Magnetic pumps must be well maintained and maintained in order to effectively exert the good performance of the pump and prolong the service life of the pump.
Monitoring and maintenance during operation
When the pump is in operation, it is necessary to strengthen the inspection of the unit, find abnormalities as soon as possible, and deal with them as soon as possible. In the inspection, generally pay attention to the following aspects at any time:
a. Pay attention to whether the sound and vibration of the unit are normal.
b. Observe whether the readings of the ammeter, power meter, pressure gauge, vacuum gauge and flow meter are normal.
c. Pay attention to whether the pipeline leaks or leaks.
d. Keep the unit clean at ordinary times and pay attention to operational safety.
Maintenance after operation
a. In the cold season, especially for pumps outdoors, the liquid in the pump should be removed immediately after stopping to prevent freezing.
b. The general standby pump should also be started at regular intervals.
c. Regular maintenance of magnetic pumps, inspection and replacement of unqualified wearing parts, such as bearings, shaft sleeves, thrust rings, etc.
d. Grease in the bearing box should be added regularly.
Our magnetically driven end suction pumps are available in a range of different chemically resistant materials, ensuring our non metallic pumps are built to withstand tough conditions which include highly corrosive applications, high temperatures and high pressures.
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