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Dust transfer is a classic application for pneumatic diaphragm pumps. What precautions should customers who purchase such pumps take when using them? And how should they deal with any failures that may occur? These are the topics that will be covered in this article. The advantage of using pneumatic diaphragm pumps for transporting dust is that the powdered material is conveyed in a closed system, which helps to minimize contact between operators and the powder. This is especially important when dealing with toxic or harmful powders, as it ensures worker safety. It also prevents dust from spreading throughout the production area, thereby reducing air pollution and raw material waste (with the use of specialized air release components). It is designed with an air flow induction system that allows the fluidizing gas and the motor-driven gas of the pump to be separated, thereby preventing oxidation and deliquescence of the material due to contact with air. The fluidizing gas can be subjected to further purification and drying treatments (in contact with the powder), and other gases such as inert gases like nitrogen can be used. System economy: simple and ready to use – unlike expensive, traditional large and complex pre-installed powder conveying systems, it is lightweight and can be easily moved around (it can be installed on a trolley, which can be customized). Ready to use out of the box, no installation or debugging required. When using a pneumatic diaphragm pump to transport dust, the following points should be noted: 1. Ensure proper exhaust and ventilation, and keep it away from flammable, explosive materials and heat sources. The grounding requirements must comply with local regulatory laws and certain specific requirements at the site. 2. Ensure that all operators are familiar with the operation and use of the pneumatic diaphragm pump, as well as aware of the safety precautions for its use; provide necessary protective equipment if required. 3. Ensure that the largest particles present in the fluid do not exceed the pump’s maximum safe particle diameter limit. 4. The intake pressure should not exceed the pump’s maximum allowable operating pressure; compressed air at a pressure higher than the rated value can cause personal injury, property damage, and impair the pump’s performance. 5. Ensure that the piping system responsible for maintaining the pump pressure of the pneumatic diaphragm pump can withstand the highest output pressure reached, and maintain cleanliness and proper operating conditions in the drive air circuit system. 6. Static electricity sparks can cause explosions, leading to injuries and property damage; therefore, use wires with a sufficiently large cross-sectional area as needed, and ensure that the grounding screws on the pump are properly and securely grounded. 7. Tighten the pump and all connection fittings to prevent static sparks from being generated due to vibration, impact, or friction. Use antistatic hoses. 8. The reliability of the grounding system should be checked and tested periodically, with the requirement that the grounding resistance be less than 100 ohms. 9. The exhaust gas from pneumatic diaphragm pumps may contain solids; do not point the exhaust outlet toward the work area or at people to avoid potential injury. 10. When the diaphragm fails, the material being transported will spray out from the exhaust silencer. When a pneumatic diaphragm pump is used to transport dust, the pump does not operate or operates very slowly. What causes this? We can start by checking the following points. 1. Check whether the piston in the air valve of the pneumatic diaphragm pump moves properly. 2. Check whether the air valve of the pneumatic diaphragm pump is stuck, and clean the air valve with a cleaning solution. 3. Check whether the air valve of the pneumatic diaphragm pump is worn; replace it with a new part if necessary. 4. Check whether there are any impurities in the filter or air filtration device at the air inlet. 5. Check the condition of the sealing parts of the center body; if they are severely worn, sealing will not be possible, and air will escape from the air outlet. 6. Check the type of lubricating oil. If the lubricant added has a viscosity higher than that recommended, the piston may get stuck or not function properly. It is recommended to use a lightweight and freeze-resistant lubricant.