Precautions for disassembly and assembly of fluoroplastic magnetic pump:
1. Disassembly steps of fluoroplastic magnetic pump:
1. The fluoroplastic magnetic pump is separated from the motor and the medium is drained (to prevent the motor and toxic medium from hurting people);
2. Disassemble the discharge body of the fluoroplastic magnetic pump;
3. Remove the stator of the fluoroplastic magnetic pump, and press the pump shaft steering wheel as an auxiliary when necessary;
4. Remove the rotor and intermediate shaft
5. Remove the drive shaft and shaft seal;
6. The fluorine plastic magnetic pump that has not been used for a long time should be treated with anti-rust. The method is to coat the non-painted metal surface with anti-rust grease, including the shaft surface, the inner cavity of the packing shell, etc., and lubricate it
2. Matters needing attention when assembling fluoroplastic magnetic pump:
1. The parts of the fluoroplastic magnetic pump should be carefully cleaned and inspected during assembly, and the damaged parts should be replaced;
2. When assembling the two universal joints of the drive shaft, check whether the sealing ring is damaged and fill the cavity with grease;
3. The correctly installed bearing makes the shaft rotate flexibly without jamming.
4. Shaft seal installation: When the stuffing box is installed, the packing gland compression bolt position should be in the housing installation window, so that the wrench can adjust the bolt;
5. When the body pressure is discharged and tightened, the nut should be tightened uniformly;
6. The mechanical seal should be installed carefully, and the end face of the friction pair should be clean and coated with grease;
7. When installing the stator, use lubricant to coat the surface of the rotor and the inner cavity of the stator, which is beneficial to the installation of the stator
Mag drive centrifugal pumps series PP/PVDF are made of thermoplastic materials (Polypropylene and PVDF) and are suitable for high corrosive liquids. Thanks to the innovative mag drive system, pumps model PP/PVDF reduce the risks of losses and the maintenance costs. The transmission of the motion occurs through magnetic joints without using mechanical seals. This guarantees the maximum safety and efficiency.
AODD pump is a new type of transportation machinery that uses compressed air as the power source and uses the diaphragm in the cylinder to agitate back and forth to perform work to achieve the purpose of conveying various media. It is suitable for conveying various corrosive liquids with particles, as well as liquids with high viscosity, volatile, flammable, and highly toxic.
一. Advantages of pneumatic diaphragm pump
(1) The vibration is small, and the foot bolt is not installed, and it can be moved for use.
(2) Pneumatic diaphragm pump can not only pump flowing liquid, but also transport some difficult-to-flow media.
(3) has many advantages of self-priming pumps, submersible pumps, canned motor pumps, mud pumps and impurity pumps.
2. Performance characteristics of Air operated diaphragm pump
(1) No need to irrigate and divert water, the suction range is up to 7m, the head is up to 50m, and the outlet pressure is ≥6kgf/cm2.
(2) Good flow performance, the maximum particle diameter allowed to pass is 10mm. When pumping mud and impurities, there is little wear on the pump.
(3) The head and flow rate can be adjusted steplessly through the valve opening (air pressure adjustment is between 1～7kgf/cm2).
(4) The pump has no rotating parts and no shaft seal. Relying on the reciprocating movement of a pair of diaphragms, various media are pumped. Because the moving parts of the pump and the working media are completely separated, the conveyed media will not leak out, avoiding environmental pollution and personal hazards.
(5) Do not use power supply, it can be used in flammable and explosive places, safe and reliable.
(6) It can be submerged in the medium instead of submersible pump to pump liquid.
(7) When starting and stopping the pump, you only need to open and close the gas valve to operate. Even if there is no medium pumping or a sudden shutdown due to unexpected circumstances, the pump will not be damaged. Once overloaded, the pump will automatically stop, with self-protection capabilities. When the load returns to normal, it can automatically start running again.
(8) Simple structure and few wearing parts. The diaphragm pump has a simple structure and is easy to install and maintain. The pump will not touch the moving parts such as the valve and connecting rod when conveying the medium, avoiding the corrosion and wear of the parts.
(9) can transport more viscous liquids.
(10) does not use oil lubrication, even if it is turned, it has no effect on the pump. Pneumatic diaphragm pump manufacturers and suppliers from China
Air Operated Diaphragm Pumps also called AODD pumps, Material made of Polypropylene (PP),PVDF,Teflon,PTFE,Stainless Steel (SS), Port sizes range from 1/4 inch up to 4″ inch. Buy AODD pumps please contact China saiken pumps Email: sales@saikenpumps.com
According to the motive force as the basis for classification, the diaphragm pump is divided into two types: electric diaphragm pump and pneumatic diaphragm pump. Compared with ordinary water pumps, pneumatic diaphragm pumps are a kind of pump that uses diaphragms as the raw material medium. It has more advantages and simpler usage. Therefore, diaphragm pumps will be given priority when choosing pump types in many industries. Today, we will tell you what is the difference between pneumatic diaphragm pump and self-priming pump.
The pneumatic diaphragm pump uses water vapor to lubricate itself, can work continuously for a long time, and can realize automatic heat dissipation at the same time, without lubrication, no jamming, and convenient maintenance.
The pneumatic diaphragm pump has no rotating parts and no shaft seal. The diaphragm completely separates the pumped medium from the moving parts of the pump and the workpiece medium, and the conveyed medium will not leak out. Therefore, when pumping toxic, volatile or corrosive media, it will not cause environmental pollution and endanger personal safety.
The connection between the column spacer and the diaphragm has good sealing and firmness, which can prevent the liquid from contacting the central shaft, and will not be inflammable and explosive. It can make the pneumatic diaphragm pump used for sulfuric acid, sodium sulfide, etc. Highly corrosive acid medium and chemical medium. The installation stability of the column between the partition combination and the intermediate air valve is high, which prolongs the service life of the pneumatic diaphragm pump in the working process, and is more convenient to use, save energy and improve efficiency.
The pneumatic diaphragm pump has a set of high-lift energy-saving devices. The upper and lower ends are equipped with medium inlet pipes and outlet pipes, which are connected by column partitions, intermediates and air inlet pipes. The air inlet pipes are connected to the air source input pipe and in turn. It is connected with the air inlet of the diaphragm pump through a manual ball valve, an air filter pressure regulating valve and a leakage ball valve.
The intermediate components of the pneumatic diaphragm pump include columns, partitions, diaphragms, intermediates and other structures. The airflow passes through the main air inlet to the intermediate air valve, and then from the intermediate air valve through the water vapor lubrication hole, and finally from the intermediate air Flow out from the air outlet of the valve, and through the coordination of other components, the reciprocating action of the diaphragm is produced to realize the main work of the qigong diaphragm pump.
The self-priming pump adopts an axial liquid return pump body structure. The pump body is composed of a suction chamber, a liquid storage chamber, a scroll chamber, a liquid return hole, and a gas-liquid separation chamber. After the pump is started normally, the impeller will suck the The liquid and the air in the suction pipeline are sucked together, and are completely mixed in the impeller, under the action of centrifugal force. The liquid entrains the gas and flows to the outer edge of the scroll. A white foam belt with a certain thickness and a high-speed rotating liquid ring are formed on the outer edge of the impeller.
The gas-liquid mixture enters the gas-liquid separation chamber through the diffuser. At this time, due to the sudden decrease of the flow rate, the lighter gas is separated from the mixed gas-liquid, and the gas continues to rise and discharge through the pump body spout. The degassed liquid returns to the liquid storage chamber, enters the impeller again through the return hole, mixes with the gas sucked in from the suction pipeline inside the impeller, and flows to the outer edge of the impeller under the action of the high-speed rotating impeller. As this process goes on again and again, the air in the suction pipeline is continuously reduced until the gas is exhausted and the self-priming process is completed, and the pump is put into normal operation.
Pneumatic diaphragm pump is the key product of Shanghai Xiafei, and it is a high-quality manufacturer integrating development, production and sales. The pneumatic diaphragm pump produced by Xiafei is mainly used for the transportation and circulation of various media. It occupies an absolute leading position in the painting and ceramic industries. It is also expanding its application in environmental protection, wastewater treatment, construction, sewage, and fine chemical industries. It has applications in medical, chemistry, electronics, semiconductor, photovoltaic production and other fields. 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.
Diaphragm repair of Air operated diaphragm pump:
If you need to repair the diaphragm, first close the suction port, close the pump discharge pipe, close the compressed air source, drain the pressure in the pump, and cut off the pump air source to drain the remaining liquid in the pump
Step 1: Remove the upper and lower covers
Using a wrench or sleeve, remove the 16 bolts that fix the upper and lower covers to the fluid chamber, and then remove the upper and lower covers
Step 2: Remove the fluid chamber
Use a wrench to remove the 16 bolts that hold the fluid cavity, diaphragm and air cavity together, and then remove the fluid cavity
Step 3: Remove the diaphragm assembly
Use a wrench or sleeve to remove the diaphragm assembly (outer guard, diaphragm, inner guard) from the diaphragm connecting rod shaft by turning counterclockwise, and then check whether the diaphragm is cut, poked, worn or chemically corroded. If necessary, replace the diaphragm
Step 4: Install the diaphragm
Insert the bolts of the outer guard block into the center hole of the diaphragm and the inner mutual block, and tap the bolts of the outer guard block clockwise into the threaded holes at both ends of the connecting rod shaft until the inner guard block is flush with the end of the connecting shaft. The connecting rod shaft is inserted into the intermediate body of the diaphragm pump and passed out, and the diaphragm assembly bolt on the other side is also clockwise to tighten the outer guard bolt to fix the diaphragm assembly on the connecting rod shaft
Step 5: Reassemble the pump
Use bolts to fix the fluid chambers on both sides to the pump, and use bolts to reinstall the upper and lower covers to the pneumatic diaphragm pump and reconnect to restore normal operation of the pump
Maintenance of PTFE diaphragm
The PTFE diaphragm is covered on the outside of the rubber diaphragm and is in direct contact with the fluid. The removal and installation of the PTFE diaphragm is different from the rubber diaphragm
AODD pumps also called air operated diaphragm pumps, are positive displacement pumps driven and powered by compressed air rather than an electric motor. The AODD pump design means that it can cope with pretty much any fluid from water to viscous slurries to 90% solids including large, shear sensitive particles without degrading them. Air operated double diaphragm pumps are able to benefit from variable flow or pressures just by adjusting the air power supply.
We are Manufacturing & Supplying of Nonmetallic PP Mag Drive Sealless Pumps in china, PVDF (Polyvinylidene Fluoride) Mag Drive Sealless Pumps, PP and PVDF Monoblock & Centrifugal Pumps in china. These pumps are heavily used in Chemical, Acid, Pharmaceutical, Food Industries, alkalies, corrosive and Hazardous Chemical. PP Mag Drive Sealless Pumps are also used for transferring and loading/unloading of acid in tankers. We Manufacture and Supply all over the Globe. Our Large Range of Pumps Includes PP Mag Drive Sealless Pumps, PVDF Mag Drive Sealless Pumps, Nonmetallic PP & PVDF Monoblock Pumps, Nonmetallic PP & PVDF Centrifugal Pumps, Chemical and Acid Pumps, PP & PVDF (Polyvinylidene Fluoride) Sealless Pumps, Diaphragm Pumps, Dosing and Hydraulic Type Metering Pumps.
PP Mag Drive Sealless Pumps has the power to pull and release weight or pressure against gravity makes the pumps avail high appreciations from clients. The pumps come with pure copper binding support and brass impeller choices. Apart from this clients can get the pumps from us at industry leading rates. Our main Focus is on PP Mag Drive Sealless Pumps also called Plastic Pumps used for Corrosive and Hazardous Chemicals. These Pumps Operates at the Temperature of 80° Celsius. They are available in PVDF Mag Drive Sealless, Monoblock and Centrifugal Designs.
PP Mag Drive Sealless Pumps are developed under the supervision of trained professionals. The basic material used by us are of premium quality and are made by hi-tech tools. The entire consignment is examined strictly before getting delivered to retain its consistency and efficiency at the premises of our patrons.
The working principle of pneumatic diaphragm pump
Each of the two symmetrical working chambers of the pump is equipped with an elastic diaphragm. The connecting rod connects the two diaphragms into a whole. After the compressed air enters the air distribution valve from the intake joint of the pump, it pushes the two working chambers. The diaphragm action drives the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the other working chamber is discharged from the back of the diaphragm. Once it reaches the end of the stroke, the air distribution mechanism automatically introduces the compressed air into the other working chamber and pushes the diaphragm to move in the opposite direction. A synchronized reciprocating movement of the two diaphragms is formed. Each working chamber is provided with two one-way ball valves. The reciprocating movement of the diaphragm causes a change in the inner volume of the working chamber, forcing the two one-way ball valves to alternately open and close, thereby continuously sucking and discharging liquid.
AODD pumps also called air operated diaphragm pumps, are positive displacement pumps driven and powered by compressed air rather than an electric motor.
Air Operated Double Diaphragm Pump (AODD pump) is a new type of conveying machine in china, uses compressed air as the power source for various corrosive liquids, liquid with particles, high viscosity, volatile, flammable and highly toxic liquid.
Pump Casing Materials: stainless steel,Polypropylene,PVDF,Cast steel, Aluminum alloy,PP, Polypropylene, Groundable, Acetal, PVDF
Diaphragm Materials: Santoprene, Hytrel, PTFE , Viton
Aluminum Alloy Air Driven Double Diaphragm Pump：
Maximum Flow gpm (lpm): 150（568）
Maximum Discharge Pressure psi (bar): 120 (8.4)
Fluid Ports Inlet/Outlet (bsp): 3 inch
Air Inlet :1/2 inch
Material of Construction: Cast steel,Aluminum alloy,PP, SS, Polypropylene, Groundable, Acetal, PVDF
Maximum Solids in (mm): 1/4 (6.4)
Maximum Dry Suction Lift ft (m): 18 (5.48)
We have the following materials available, and our engineers will select the most suitable and economical material for you according to your specific working conditions.
Wetted parts material: PP, PVDF, Acetal, Aluminum alloy, Ductile iron, stainless steel, etc.
Diaphragm material: Teflon, Santoprene, Viton, Hytrel, Buna-N, etc.
Available inlet/outlet size: 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1-1/2″, 2″, 3″ inch
Pneumatic (air-operated) AODD pump Connection type:
Threaded connection: Plastic pumps from 1/4″ to 1-1/2″, and all metal pumps.
Fanged connection: Plastic pumps from 1/2″ to 3″.
Air Diaphragm Pump Application area:
Chemical Industry; Coating Industry; Painting Industry; Dye Industry; Pigment and Textile Chemical Industry; Food Industry; Water treatment Industry; Petroleum Industry; Environmental protection Industry; Pharmaceutical Industry
Aluminum Alloy Air Driven Double Diaphragm Pump： Maximum Flow gpm (lpm): 150（568） Maximum Discharge Pressure psi (bar): 120 (8.4) Fluid Ports Inlet/Outlet (bsp): 3 inch
2. It can suck all kinds of chemical corrosive agents, petroleum, mud, and clean grease.
3. It can suck all kinds of highly toxic, flammable and volatile liquids.
4. It can suck all kinds of strong acid, strong alkali and strong corrosive liquid.
5. It can suck all kinds of high temperature liquids, and the maximum temperature can withstand 150℃.
6. It can be used as the front-stage pressure sending equipment of various solid-liquid separation equipment.
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.
● Max Flow – 12 Liter Per Minute, 720 LPH.
● Max Head – 2 Meter
● Pressure KG/CM2 – 0.2
● Inlet/Outlet – 14mm x 14mm
● End Connection – Nozzle Type
● Max Temperature 0~75℃ (GFRPP), 0~90℃（PVDF）
● Motor Power – 0.008 HP/ 0.6W
● Motor Specification – 1 Phase 2800 RPM 50Hz/60hz
● Casing, Back Plate & Impeller – Polypropylene/GFRPP/ PVDF
● Shaft – Ceramic/SIC
● Sealing Arrangement – Sealless Pumps
Polypropylene Magnetic Drive Pump
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.
This china saiken pumps made centrifugal Sealless 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.
“Magnetic Drive ” refers to the coupling between the wet end of the pump and the motor. In “direct drive” impeller of the pump is attached to shaft motor and this design depends on shaft Mechanical seal. In a magnetic drive sealless pump, the wet end and motor are two separate contained parts connected to the motor bracket. At the end of the motor shaft, a drive magnet is attached which rotates around the rear housing causing the impeller to spin fixed upon another magnet. It is the attraction of the drive magnet and impeller magnet which allows the full torque of the motor to run the pump. Without a shaft seal, the danger of leakage commonly associated with a shaft seal is eliminated. Furthermore, the maintenance cost is reduced because no time or money is spent on maintaining the shaft seal.
GFRPP PVDF Magnetic Drive Pump,Max Flow 12 LPM, 720 LPH, Max Head – 2.0 Meter,Pressure KG/CM2 – 0.2, Inlet/Outlet – 14mm x 14mm, End Connection – Nozzle Type,Max Temperature 75℃ (GFRPP), 90℃（PVDF）,Motor Power – 0.008HP,Material: Polypropylene/GFRPP/ PVDF
1. No need to irrigate and divert water, the suction lift is up to 7m, the head is up to 50m, and the outlet pressure is ≥6kgf/cm2.
2. Good flow performance, the maximum particle diameter allowed to pass is 10mm. When pumping mud and impurities, there is little wear on the pump.
3. The head and flow can be adjusted steplessly through the valve opening (air pressure adjustment is between 1-7 kgf/cm2).
4. The pump has no rotating parts and no shaft seal. Relying on the reciprocating movement of a pair of diaphragms, various media are pumped. Because the moving parts of the pump and the working media are completely separated, the conveyed media will not leak out, avoiding environmental pollution and personal hazards.
5. Do not use power supply, can be used in flammable and explosive places, safe and reliable.
6. It can be submerged in the medium instead of submersible pump to pump liquid.
7. When starting and stopping the pump, you only need to open and close the gas valve to operate. Even if there is no medium pumping for a long time or a sudden shutdown due to unexpected circumstances, the pump will not be damaged. Once overloaded, the pump will automatically stop, with self-protection capabilities. When the load returns to normal, it can automatically start running again.
8. Simple structure with few wearing parts. The diaphragm pump has a simple structure and is easy to install and maintain. The pump will not touch the moving parts such as the valve and connecting rod when conveying the medium, avoiding the corrosion and wear of the parts.
AODD pumps also called air operated diaphragm pumps, are positive displacement pumps driven and powered by compressed air rather than an electric motor. The AODD pump design means that it can cope with pretty much any fluid from water to viscous slurries to 90% solids including large, shear sensitive particles without degrading them. Air operated double diaphragm pumps are able to benefit from variable flow or pressures just by adjusting the air power supply.
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