Let’s take a look at AODD PUMP

Let’s take a look at AODD PUMP：
A diaphragm is installed in each of the two symmetrical working chambers of AODD PUMP, which are connected by a central link. Compressed air enters the valve from the air inlet of the AODD PUMP, and the compressed air is introduced into one of the chambers through the air distribution mechanism to push the diaphragm in the chamber to move, while the gas in the other chamber is discharged. Once the end of the stroke is reached, the air distribution mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm to move in the opposite direction, so that the two diaphragms reciprocate continuously and synchronously. In the figure, compressed air enters the valve to move the diaphragm to the right. The suction of the chamber causes the medium to flow in from the inlet, pushing the ball valve into the chamber, and the ball valve is blocked by suction; the medium in the chamber is squeezed. Push open the ball valve to flow out from the outlet, and at the same time lock the ball valve to prevent flow, so that the medium is continuously sucked in from the inlet and discharged from the outlet.
AODD PUMP manufacturers and suppliers

How AODD PUMP works

The working principle of AODD PUMP:
Air diaphragm pump is a special form of positive displacement pump. It relies on the back and forth agitation of a diaphragm to change the volume of the working chamber to suck and discharge liquid.
The pneumatic diaphragm pump is mainly composed of two parts: the transmission part and the diaphragm cylinder head. The transmission part is a driving mechanism that drives the diaphragm to agitate back and forth. Its transmission forms include mechanical transmission, hydraulic transmission and pneumatic transmission, among which hydraulic transmission is widely used. The working part of the diaphragm pump is mainly composed of the crank connecting rod mechanism, the plunger, the hydraulic cylinder, the diaphragm, the pump body, the suction valve and the discharge valve, etc., among which, the driving mechanism and the reciprocating column composed of the crankshaft connecting rod, the plunger and the hydraulic cylinder The plug pump is very similar.
When the diaphragm pump is working, the crank connecting rod mechanism is driven by the electric motor to drive the plunger to reciprocate. The movement of the plunger is transmitted to the diaphragm through the working fluid (usually oil) in the cylinder, causing the diaphragm to move back and forth.
The cylinder head of the pneumatic diaphragm pump is mainly separated from the working fluid by a diaphragm. When the diaphragm moves to one side of the transmission mechanism, the pump cylinder works under negative pressure and sucks in the liquid. When the diaphragm moves to the other side , The liquid is discharged. The liquid to be transported is separated from the working fluid by the diaphragm in the pump cylinder, and only contacts the pump cylinder, suction valve, discharge valve and the inner side of the diaphragm, and does not touch the plunger and the sealing device, which makes the column Important parts such as plugs work completely in oil medium and are in good working condition.
The diaphragm must have good flexibility and good corrosion resistance, usually made of polytetrafluoroethylene, rubber and other materials. The pot bottom-shaped parts with meshes on both sides of the diaphragm are installed to prevent the diaphragm from locally deforming too much, and are generally called diaphragm restrictors. The pneumatic diaphragm pump has good sealing performance and can easily achieve leak-free operation. It can be used to transport acid, alkali, salt and other corrosive liquids and high-viscosity liquids.
AODD PUMP manufacturers and suppliers

Briefly introduce the AODD PUMP

The air-operated double diaphragm pump is also known as the control pump. It is the main type of actuator. By receiving the control signal output by the adjustment control unit, it uses power operation to change the fluid flow. The role of the AODD PUMP in the control process is to accept the control signal of the regulator or computer, change the flow of the adjusted medium, and maintain the adjusted parameters within the required range, so as to achieve the automation of the production process. If the automatic adjustment system is compared with the manual adjustment process, the detection unit is the human eye and the adjustment control unit is the human brain, then the executive unit—the diaphragm pump is the human hand and foot. To realize the adjustment and control of a certain parameter such as temperature, pressure, flow, and liquid level in the process, it is inseparable from the diaphragm pump.
There are five commonly used materials for pneumatic diaphragm pumps: plastic, aluminum alloy, cast iron, stainless steel, and Teflon. There are four kinds of materials for electric diaphragm pumps: plastic, aluminum alloy, cast iron, and stainless steel. According to different liquid media, the diaphragm of the diaphragm pump adopts nitrile rubber, neoprene rubber, fluorine rubber, polytetrafluoroethylene, polyhexaethylene, etc., to be placed in various special occasions to pump various media to meet the needs.
AODD PUMP manufacturers and suppliers

The working principle of SKQ plastic diaphragm pump AODD PUMP

The working principle of SKQ plastic diaphragm pump AODD PUMP:

  1. Compressed air is the power.
  2. It is a positive displacement pump whose volume changes caused by the reciprocating deformation of the diaphragm. Its working principle is similar to that of a plunger pump. Due to the characteristics of the working principle of the diaphragm pump, the diaphragm pump has the following characteristics:
    (1) The plastic diaphragm will not overheat: compressed air is used for power, and it is a process of expansion and heat absorption when exhausting. The temperature of the pneumatic pump is reduced when it is working, and no harmful gas is discharged.
    (2) No electric sparks: The pneumatic diaphragm pump does not use electricity as power, and prevents static sparks after being grounded
    (3) Liquids containing particles can be passed: because the volumetric work and the inlet is a ball valve, it is not easy to be blocked.
    (4) The shear force on the material is extremely low: how to suck in and out when working, so the agitation to the material is minimal, suitable for the transportation of unstable materials
    (5) The flow can be adjusted, and a throttle valve can be installed at the material outlet to adjust the flow.
    (6) It has the function of self-priming.
    (7) It can be run dry without danger.
    (8) Can dive for work.
    (9) The fluids that can be transported are extremely wide, ranging from low-viscosity to high-viscosity, and viscous from corrosiveness.
    (10) There is no complicated control system, no cables, fuses, etc.
    (11) Small size, light weight and easy to move.
    (12) There is no need for lubrication, so it is easy to maintain and will not pollute the working environment due to dripping.
    (13) The pump can always maintain high efficiency and will not be reduced due to wear.
    (14) 100% energy utilization. When the outlet is closed, the pump will automatically stop, and the equipment will move, wear, overload, and heat
    (15) SKQ plastic diaphragm pump has no dynamic seal, easy maintenance to avoid leakage. No dead spots when working.

Product features of AODD PUMP plastic diaphragm pump

Product features of AODD PUMP plastic diaphragm pump:

  1. Since air is used as power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), which is suitable for medium and high viscosity fluids. The working point of the centrifugal pump is set based on water. If it is used for a fluid with a higher viscosity, a reducer or frequency converter is required, which greatly increases the cost. The same is true for gear pumps.
  2. It is reliable and low-cost to use pneumatic pumps in flammable and explosive environments, such as the transportation of fuel, gunpowder, and explosives, because: first, it is impossible to generate sparks after grounding; second, there is no heat generation during work, and the machine does not It will overheat; third, the fluid will not overheat because the diaphragm pump has the least agitation to the fluid.
  3. In places with harsh construction sites, such as wastewater discharge from construction sites and industrial mines, due to the large amount of impurities and complex components in the sewage, the pipeline is easy to be blocked, which will cause excessive load on the electric pump, and the electric motor will be easily damaged due to heat. The pneumatic diaphragm pump can pass particles and has an adjustable flow rate. When the pipeline is blocked, it will automatically stop until it is unobstructed.
  4. In addition, the diaphragm pump is small in size and easy to move, does not require foundation, occupies a very small ground, and is easy and economical to install. It can be used as a mobile material conveying pump.
  5. In the treatment of hazardous and corrosive materials, the diaphragm pump can completely isolate the materials from the outside world.
  6. Or ensure that no impurities contaminate the raw materials in some tests.
  7. It can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials, flocculants, etc. This is because the shear force of the diaphragm pump is low and the physical impact on the material is small.

Briefly introduce the fluoroplastic pneumatic diaphragm pump AODD PUMP

Briefly introduce the fluoroplastic pneumatic diaphragm pump AODD PUMP
The fluorine plastic pneumatic diaphragm pump does not need to be filled with water. The maximum self-priming is 5.48 meters, the head is 84 meters, and the outlet pressure is ≥84 bar. It has good passing performance and allows the maximum particle diameter to pass 32 mm. When conveying mud and impurities, there is little wear on the pump; the head and flow can be steplessly adjusted by the opening of the air valve; there are no rotating parts, no shaft seal, and the diaphragm completely separates the pumped medium from the moving parts of the pump. Leak to the outside. And when pumping toxic, volatile or corrosive media, it will not cause environmental pollution and endanger personal safety; it does not need to use electricity, and it is safe and reliable to use in flammable and explosive places; it is convenient to use, reliable in work, and only needs to be opened and stopped. Close the air supply valve. Even if there is no medium running or sudden shutdown, it will not be damaged. With self-protection performance, once overloaded, the pump will automatically stop, and when the load returns to normal, it can automatically start; the pump does not need to be lubricated with oil, even if it is idling, it will not have any effect on the pump; the structure is simple and there are few wearing parts, and the installation , Convenient maintenance, the medium delivered by the pump will not come into contact with moving parts such as the valve, connecting rod, etc., unlike other pumps due to the wear of rotors, pistons, gears, blades and other parts, the performance gradually declines and can transport more viscous liquids ( The viscosity is below 10,000 centipoise).
The pneumatic diaphragm pump uses compressed air as its power source. It is a positive displacement pump whose volume changes due to the reciprocating deformation of the diaphragm. It has six advantages such as reliable quality, long service life, low noise, low vibration, no crash, and fine workmanship. It can not only pump flowing liquids, but also transport some difficult-to-flow media. It has self-priming pumps, submersible pumps, and canned pumps. There are many advantages of conveying machinery such as mud pumps and impurity pumps.
In addition to fluoroplastic materials, pneumatic diaphragm pumps also include aluminum alloy, plastic, stainless steel, and iron balls.

Introduction to Magnetic drive pump

Magnetic drive pump abbreviation is Magnetic coupling pump. Pump materials are stainless steel, polypropylene (PP),PVDF, fluoroplastics (F46),We are Magnetic drive pump manufacturers in China!


Size: 1/2” ~6” , DN15mm~DN150mm
Flow Rate (Q) 0 – 200 (m3/h)
Lift Head (H) 0 – 55 (m)


Here you can find the related products in Magnetic Pump, we are professional manufacturer of Magnetic Pump,Horizontal Magnetic Pump,Permanent Magnet Pump,Self-Priming Magnetic Pump . We focused on international export product development, production and sales. We have improved quality control processes of Magnetic Pump to ensure each export qualified product.
If you want to know more about the products in Magnetic Pump, please click the product details to view parameters, models, pictures, prices and other information about Magnetic Pump,Horizontal Magnetic Pump,Permanent Magnet Pump,Fast Self-Priming Pump.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Magnetic Pump!
For more information on magnetic pumps, please visit our https://www.saikenpumps.com/Magnetic-Drive-Pump

Fluoroplastic self-priming pump installation points

Fluoroplastic self-priming pump installation points：

  1. Large-caliber self-priming pump with small water pipe for water delivery Many users think that this can increase the actual head of the fluoroplastic self-priming pump. The actual head of the fluoroplastic self-priming centrifugal pump = total head ~ lost head. When the pump model is determined, the total head is inevitable; the loss of head mainly comes from the pipeline resistance. The smaller the pipe diameter, the greater the resistance, and the greater the loss of head. Therefore, after the pipe diameter is reduced, the actual head of the centrifugal pump is not only impossible. Increase, but will decrease, resulting in a drop in the efficiency of the self-priming pump. In the same way, when a small-diameter water pump uses a large water pipe to pump water, the actual head of the pump will not be lowered, but the loss of the head will be reduced due to the decrease in the resistance of the pipeline, and the actual head will be increased. They also think that when a small-diameter water pump uses a large water pipe to pump water, it will definitely increase the motor load. They think that as the pipe diameter increases, the water in the outlet pipe will exert greater pressure on the pump impeller, which will greatly increase the motor load. As everyone knows, the size of the liquid pressure is only related to the height of the head, and has nothing to do with the cross-sectional area of ​​the water pipe. As long as the head is certain, the size of the impeller of the self-priming pump remains the same, no matter how large the pipe diameter is, the pressure acting on the impeller is certain. Only after the pipe diameter increases, the water flow resistance will decrease, and the flow will increase, and the power consumption will also increase appropriately. But as long as it is within the rated head range, the pump can work normally no matter how the pipe diameter is increased, and it can also reduce the pipeline loss and improve the pump efficiency.
  2. When installing the fluorine plastic self-priming pump inlet pipe, the degree of degree or upward warping Doing so will gather air in the water inlet pipe, lower the vacuum of the water pipe and the centrifugal pump, reduce the suction lift of the centrifugal pump, and reduce the water output. The exact method is: the degree section should be slightly inclined to the direction of the water source, and should not be too high, let alone tilt upwards.
  3. There are many elbows used on the inlet pipe of the self-priming pump If more elbows are used in the inlet pipe, it will increase the local water flow resistance. And the elbow should be turned in the vertical direction, do not allow to turn in the degree direction, so as not to collect air.
  4. The water inlet is directly connected to the elbow This will cause uneven distribution of water flow through the elbow into the impeller. When the diameter of the water inlet pipe is larger than the water inlet of the pump, an eccentric reducing pipe should be installed. The flat part of the eccentric reducer should be installed on the top, and the inclined part should be installed on the bottom. Otherwise, the air will be collected, the water output will be reduced or the water will not be pumped, and there will be crashing noises. If the diameter of the water inlet pipe and the water inlet of the water pump are equal, a straight pipe should be added between the water inlet of the water pump and the elbow. The length of the straight pipe shall not be less than 2 to 3 times the diameter of the water pipe.
  5. Fluoroplastic self-priming pump is equipped with a bottom valve, the bottom section of the inlet pipe is not vertical If installed in this way, the valve cannot close by itself, causing water leakage. The accurate installation method is: the inlet pipe with bottom valve should be vertical in the bottom section. If it cannot be installed vertically due to topographical conditions, the angle between the axis of the water pipe and the degree plane should be above 60°.

2hp self-priming pump centrifugal pump conveying medium

2hp self-priming pump centrifugal pump conveying medium:
Self-priming centrifugal pump can transport all kinds of industrial waste water, can transport acidic, alkaline and other corrosive liquids. It is widely used in chemical industry, dosing, acid making, alkali making, rare earth, pesticide, fuel, medicine, paper making, electroplating, point Decomposition, pickling, backwashing, laboratories, various industries and other industries transport containing acidic, alkaline, rare and precious liquids.
Seiken self-priming acid and alkali resistant pump, the performance parameters of strong acid, strong alkali, and liquid containing chemical medium are referenced, a variety of acid and alkali, chemical medium are transported stably, and the corrosion resistance is excellent.
Commonly used media for self-priming pumps are hydrochloric acid, sulfuric acid (pay attention to concentration), nitric acid (pay attention to concentration), hydrofluoric acid (pay attention to configuration), phosphoric acid, formic acid, chromic acid, sodium hypochlorite, PAC\PAM solution, sodium hydroxide (pay attention to concentration), Brine, dichloromethane, dichloroethyl ether, aqua regia (note the configuration).
The manufacturers and suppliers of self-priming pumps are from China.

1HP PP FVDF FRPP acid and alkali resistant self-priming pump

Acid and alkali resistant self-priming pump, with various calibers, complete power, and non-standard customization. Saiken self-priming acid and alkali resistant pump, the head can reach 40 meters, the flow rate is 1000L/min.

Comparison table of acid and alkali resistant self-priming pump models:

MA-50-03-2-N-B-H- C-S-H-5-L

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫

①Model/Pump Material: MA-FRPP MAC-CFRPP MAA-CPVC MAP-PVDF
②Inlet and outlet diameter: 40-4040 50-5050 75-75*75
③Horsepower: 11-1Ø1/2HP, 13-3Ø1/2HP, 02-3Ø2HP, 03-3Ø3HP, 05-3Ø5HP, 07-3Ø7.5HP, 10-3Ø10HP
④Number of poles: 2-2P 4-4P
⑤Rubber material: N-NBR E-EPDM V-VITON
⑥B-non-tongue check valve, A-tongue check valve
⑦L-low head, H-high head
⑧Fixed ring: C-Ceramic (ceramic) S-SIC SS-SSIC
⑨ Rotating ring: C-Carbon (carbon) S-SIC SS-SSIC
⑩Spring material: H-Hasteiioy S-SUS316
⑪Frequency 5-50Hz 6-60Hz
⑫S-short neck L-long neck

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