The pneumatic diaphragm pump uses a two-way diaphragm structure, that is, through a piston to separate the liquid on both sides of the inlet and outlet. When the pressure inside the pump body changes, the piston will move to both sides, so as to achieve the suction and discharge of liquid. Compared with traditional centrifugal pumps, diaphragm pumps have the following notable features:

First of all, the diaphragm pump has a high self-priming capacity. Due to the existence of the piston structure, the diaphragm pump can self-priming when the liquid level is lower than the pump inlet, eliminating the complicated arrangement of the inlet pipe and reducing the use cost.

Secondly, diaphragm pumps can transport liquids containing particles, high viscosity and corrosive fluids. Because there is no shaft seal structure inside the pump body, the diaphragm pump can effectively avoid leakage problems, so that it is suitable for a variety of complex working conditions.

In addition, the diaphragm pump has a wide flow range and regulatory performance. By controlling the switch of the inlet and outlet valves, the flow regulation of the diaphragm pump can be realized to adapt to different transportation needs.

The role of diaphragm pump in liquid transport can not be ignored. It is widely used in chemical, petroleum, pharmaceutical, food and other fields, for conveying various media, such as acid, alkali, solvent, wastewater and so on. In the chemical industry, diaphragm pumps are often used to transport a variety of corrosive media, and their corrosion resistance makes the production process safer and more reliable.

In the petroleum industry, diaphragm pumps are often used to transport oil, natural gas and viscous media. Its energy-saving and efficient characteristics make the conveying process more economical and feasible.

In the pharmaceutical and food industries, diaphragm pumps are often used to transport various liquid pharmaceutical and food raw materials. Its structure is simple, easy to clean, in line with health requirements, to ensure the quality and safety of drugs and food.

In short, diaphragm pump, as an important liquid transport equipment, plays an irreplaceable role in industrial production. Its unique structure and performance make the diaphragm pump suitable for a variety of complex working conditions, and play a key role in the chemical, petroleum, pharmaceutical, food and other industries. With the continuous advancement of technology, it is believed that saiken’s diaphragm pumps will play a more extensive and efficient role in liquid transportation

In order to effectively control the vibration of the diaphragm pump, it is first necessary to understand the causes of vibration. The vibration is mainly caused by the interaction between the pump body and the liquid, such as the collision between the pump blade and the liquid, and the movement of the liquid in the pump chamber. In addition, the structural design of the pump, process parameters, and the nature of the liquid will also have an impact on the vibration. Therefore, controlling for these causes is the key to reducing vibration.

First, during the design phase, vibration can be reduced by optimizing the structure of the pump. Reasonable design of pump blade shape and number, so that its contact area with the liquid is small, reduce the impact force. At the same time, increase the stability of the pump, the use of strong support structure and shock absorption device, reduce the resonance frequency, can effectively reduce the possibility of vibration.

Secondly, the adjustment of the process parameters can also reduce the vibration level. Control the liquid flow rate, pressure and temperature, keep within a reasonable range, avoid excessive flow rate and pressure caused by the violent movement of the liquid, thereby reducing the vibration amplitude. In addition, the vibration can also be controlled by selecting the appropriate liquid viscosity and density.

In addition, maintenance and maintenance of the diaphragm pump is also an important part of vibration control. Regularly check the wear of the pump body and blade, repair or replace the damaged parts, and maintain the normal operation of the pump. Pay attention to cleaning the impurities and sediments in the pump chamber to keep the liquid in the pump pure and avoid unnecessary vibration.

Finally, reasonable operation technology is also the key to vibration control. The operator should receive professional training, understand the working principle and operating points of the pump, and operate in strict accordance with the operating procedures. Avoid too large or too small pumping volume, control liquid flow rate and pressure fluctuations, thereby reducing the occurrence of vibration.

In summary, vibration control of diaphragm pumps in saiken Pumps is the key to improving production efficiency and ensuring equipment stability. By optimizing the structure design, adjusting the process parameters, maintenance and operation technology, the vibration level can be effectively reduced and the operation efficiency of the equipment can be improved. In the future industrial production, we should pay more attention to the work of vibration control, and constantly explore new methods and technologies to make the vibration problem of diaphragm pump get the best solution.

First of all, let’s introduce the basic principle of pneumatic diaphragm pump. AODD PUMP is a kind of pump that pushes the medium through compressed gas. Because of its special structure and working principle, it has some unique advantages. The diaphragm pump uses the gas pressure difference between the diaphragm and the pump chamber to realize the transmission of the medium. The traditional centrifugal pump requires the rotation of the rotor to provide the power of the medium. This makes diaphragm pumps have obvious advantages in terms of energy saving.

The energy-saving effect of diaphragm pump is mainly reflected in the following aspects:

1. Flexible and efficient operation: diaphragm pump has the characteristics of flexible operation and convenient start and stop. In actual production, due to the needs of the process, the start and stop frequency of the pump is high, and the traditional centrifugal pump needs to consume a lot of energy when starting and stopping. The diaphragm pump can adjust the flow rate by adjusting the gas pressure, and only need to control the opening degree of the valve. Therefore, diaphragm pumps have obvious advantages in terms of energy saving.
2. With self-priming function: the diaphragm pump has a self-priming function, which can operate normally in an anhydrous state without additional suction device. This allows the diaphragm pump to reduce the dependence on external equipment and reduce energy consumption during use. The traditional centrifugal pump needs to be equipped with suction device before starting, which increases the energy consumption.
3. No leakage, no pollution: Because the diaphragm pump uses the diaphragm to isolate the contact between the medium and the transmission part, there is no leakage problem, and the waste of energy and media is avoided. At the same time, the diaphragm pump does not need to use lubricants when working, so it will not pollute the conveying medium, improving the environmental protection of the production process.

In the end, we can once again highlight the energy saving effect of saiken’s diaphragm pumps. The diaphragm pump has the characteristics of flexible and efficient operation, self-priming function, no leakage, no pollution, etc., to achieve a greater degree of energy consumption reduction. With the continuous improvement of energy conservation and environmental protection awareness, it is believed that diaphragm pumps will be more widely used in the industrial field, and make more contributions to saving costs and improving production efficiency for enterprises.

The quality of diaphragm pump mainly includes the requirements of structural stability, durability, sealing and operation effect. First of all, the structure of the diaphragm pump must be stable and strong, able to withstand high pressure and complex working environments. This requires aodd pump‘s main components to be made of high-strength and corrosion-resistant materials, with precision machining and rigorous assembly processes. At the same time, the connecting part of the diaphragm pump should have good sealing to prevent cross-contamination of the medium inside and outside the pump.

Secondly, the durability of the diaphragm pump is one of the important indicators to test its quality. Diaphragm pumps usually need to run for a long time, so its parts and seals must have a long service life. This involves the choice of materials, the impact of external environmental factors on the pump, and the correct maintenance and maintenance. Only by ensuring that the diaphragm pump has sufficient durability can it meet the needs of industrial production.

In addition, the sealing of saiken’s diaphragm pumps is also an important indicator of their quality. The diaphragm pump must be able to effectively prevent the medium from leaking or gas entering the pump body during the working process, so as to ensure the stability and safety of fluid transmission. In order to achieve a good sealing effect, diaphragm pumps usually use reliable sealing structures and technologies, such as double-layer diaphragms, sealing rings, etc. These measures not only ensure the normal operation of the diaphragm pump, but also reduce the failure rate and maintenance costs of the pump body.

In short, diaphragm pump, as an important fluid transmission equipment, plays a vital role in industrial production. In order to ensure the efficient, stable and safe operation of the diaphragm pump, higher requirements are put forward for its quality. Only with a stable structure, durable life, good sealing and operation effect, diaphragm pumps can meet the needs of various industries, and provide reliable support for the development of industrial production. With the continuous progress of technology and the intensification of market competition, diaphragm pump manufacturers need to continuously improve product quality and improve technical level to meet the increasing requirements of customers.

Pump does not run or runs slowly.

Ensure that the intake pressure is at least 0.4 bar(5 psig) higher than the starting pressure, and the pressure difference (the difference between the intake pressure and the discharge pressure) should not be less than 0.7 bar(10 psig).

Check the air intake filter for debris.

Check for serious gas leaks (air leaks), which indicate worn seals/bores on the air valve, pilot spool, and spindle.

Remove the pump and check for obstacles or objects in the air passage that would impede the movement of the internal parts.

Check whether the ball check valve is stuck. If the material to be pumped is not compatible with the elastomer of the pump, swelling may occur. Replace ball check valves and seals with appropriate elastomers. Also, as check valve balls wear out, they get smaller and can get stuck in the seat. In this case, replace the ball and seat.

Check the inner piston for damage, which will cause the air valve spool to be unable to move.

Remove plug on pilot spool exhaust port.

Connect the test light to the two leads leading to the pump and make sure the light cycles on and off. Ensure lamp voltage and current requirements with Accu-Flo? Coil voltage and current requirements are the same.

Make sure to switch the air valve manual override control (small red knob on the front of the valve) to the “0” position.

Check the pilot pressure vent at the top of the operator/coil assembly to ensure that it is not blocked.

Check the valve for wear. If the air continuously sweeps away a large amount of exhaust gas, the valve seal may wear and fail to work properly. In this case, the valve must be replaced.

Note: Cost savings can be achieved by completely disassembling the valve, cleaning all components, and re-lubricating the valve before scrapping it.

Check the intake filter and air filter for debris.

Check if the valve is stuck and flush the valve with solvent.

Check the valve for wear. If the piston face of the air valve becomes bright instead of dull, the air valve may be worn out, out of working tolerance, and must be replaced.

Check the central body ring. If they wear too much, they will not seal and the air will simply flow through the pump and out of the exhaust port. Because of their special structure, use only rings.

Check that the piston in the valve is rotating. This indicates that the guide pin has failed.

Check the type of lubricant to be used. Oil with a higher viscosity than recommended may cause the piston to stick or run abnormally. An oil with anti-freeze characteristics (ISO 15-5 weight) is recommended.

Second, the pump runs, but there is little or no product flow.

Check the pump for cavitation. Slowly reduce the pump speed to allow the thick material to flow into the liquid chamber.

Verify that the vacuum required for the fluid suction height is not greater than the vapor pressure (cavitation) of the material to be pumped.

Check whether the ball check valve is stuck. If the material to be pumped is not compatible with the elastomer of the pump, swelling may occur. Replace the ball check valve and seat with an appropriate elastomer. Also, as check valve balls wear out, they get smaller and can get stuck in the seat. In this case, replace the ball and seat.

Check that the discharge isolation valve is closed.

Check if the speed of the electrical signal is so slow that the physical stroke cannot be completed before the signal to change direction is sent. The time required to complete the stroke is determined by a number of factors, including fluid viscosity and indenter pressure. If the muffler is removed, the shaft can be seen (not available on all models).

Ensure that the supply pressure is high enough to meet the application head pressure requirements.

Check the cavitation of the pump; Reduce the pump speed to match the thickness of the material to be pumped

Check whether the ball check valve is stuck. If the material to be pumped is incompatible with the pump elastomer, swelling may occur. Replace the ball check valve and O-ring with an appropriate elastomer.

Check and ensure that all suction connections are airtight and that the clamp rings are properly tightened.

Check the cavitation of the pump; Reduce pump speed to match thickness of material to be pumped.

Check whether the ball check valve is stuck. If the material to be pumped is not compatible with the elastomer of the pump, swelling may occur. Replace the ball check valve and O-ring with an appropriate elastomer.

Check and ensure that all suction connections are airtight, especially the clamp rings around the air intake.

Three, the pump valve freeze.

Check if there is too much moisture in the compressed air. Install a dryer or hot air generator to produce compressed air. Alternatively, in some applications, a coalescence filter may be used to remove moisture from compressed air.

There are bubbles in the pump outlet.

Check the diaphragm for rupture.

Check the tightness of the outer piston.

Check the tightness of fasteners and the integrity of O-rings and seals, especially at the intake manifold.

Make sure pipe connections are airtight.

Fourth, the product is discharged from the exhaust port.

Check the diaphragm for rupture.

Check the sealing of external piston and shaft.

Five, the pump appears crunch.

Forming the wrong discharge head or suction height

Six, the solenoid valve appears buzzing or the solenoid valve is burned out.

The voltage is incorrect, the solenoid valve is faulty or dirty.

Seven, the solenoid valve can not be electrically shifted, but it can be manually controlled.

Incorrect voltage, poor coil or wiring.

Eight, the solenoid valve can not be electric or manual beyond control shift.

Insufficient air supply, contamination, inadequate or improper lubrication, and valve bonding.

9. The valve is displaced but cannot be returned.

Spring break, mechanical bond.

10. Excessive leakage of air valve exhaust port.

The seal in the air valve is worn.

The air passage of the pump is blocked by ice.

Check whether there is too much water in the compressed air line. As air is discharged from the exhaust port during the operation of the pump, water vapor trapped in the compressed air can freeze and block the air passage in the pump. If this happens, you may need to install a coalescence filter, an air dryer, or a hot air generator for compressed air.