QBY Pneumatic Diaphragm Pump

1. Media transport:The diaphragm reciprocates to achieve continuous transport of liquids, slurries containing solid particles, and high-viscosity fluids. The flow rate can be flexibly controlled by adjusting the compressed air pressure.

2. Self-priming conveyor: No pre-priming is required; the self-priming height can reach 5-8 meters; it can directly extract media under low or negative pressure conditions.

3. Leak-free delivery: The shaftless structure design allows for the safe transport of flammable, explosive, toxic, harmful, and highly corrosive media, avoiding leakage, pollution, and safety hazards.

4. Idle operation: It can operate under no-load for extended periods without damaging the pump body, adapting to the needs of frequent start-stop operations.

5.Explosion-proof conveyor:Powered by compressed air, with no electrical components, it does not produce electric sparks and is suitable for flammable and explosive hazardous environments.

1. Media environment: It can transport highly corrosive media such as acids and alkalis, slurries containing solid particles, and high-viscosity fluids, and is suitable for a variety of complex media.

2. Operating environment: Suitable for flammable and explosive hazardous locations and temporary operation scenarios without power supply, it can run idle for a long time and withstand the normal temperature range of -20℃ to 80℃.

3. Installation environment:No fixed foundation is required; it can be used in a mobile manner and is suitable for narrow spaces, outdoor open-air environments, and other scenarios.

1. Excellent adaptability to various working conditions: It can transport a variety of complex media, such as those with acid and alkali corrosion, those containing solid particles, and those with high viscosity. It can run dry for a long time without worrying about damage to the pump body.

2. Safe, explosion-proof, and leak-proof: Powered by compressed air, it has no electrical components and does not generate electrical sparks, making it suitable for flammable and explosive hazardous environments; the shaftless design eliminates media leakage at the source.

3. Self-priming, convenient and easy to operate: The self-priming height can reach 5-8 meters, and no pre-priming pump is required; the flow rate can be flexibly controlled by adjusting the air source pressure, and the operation threshold is low.

4.Low installation and maintenance costs: The structure is lightweight and compact, requiring no fixed foundation and supporting mobile installation; the only vulnerable parts are the diaphragm and the check valve, which are easy to replace and have low maintenance costs.

5. Flexible material options:The pump body can be customized with materials such as stainless steel, PP, and PVDF, and the diaphragm can be matched with fluororubber, PTFE, etc., to meet the corrosion resistance requirements of different conveying media as needed.

Chemical industry: It is used to transport acids, alkalis, organic solvents, corrosive slurries, and flammable and explosive chemicals.

Environmental wastewater: Transfer of sludge, solid wastewater, and landfill leachate.

Oil mines: It can transport crude oil, slurry, and tailings, and is suitable for field operations without power supply.

Food and pharmaceutical:It can transport juices, sauces, medicines, etc., and its food-grade materials ensure hygiene.

Architectural Coating: It can transport coatings and concrete additives and supports mobile operations.

Shipbuilding sector:It can pump out bilge water and oil stains, and adapt to bumpy and humid environments.

1. Installation check: Confirm that the pump body/diaphragm material matches the medium, and check that the check valve and diaphragm are undamaged and unblocked.

2. Pipeline connection: The air inlet is connected to compressed air (with a pressure regulating filter installed); the liquid inlet pipe is for the medium, and the liquid outlet pipe is connected to the target container.

3. Power-on adjustment: Slowly turn on the gas source and adjust the gas pressure to 2-7 kgf/cm². The pump will start automatically. Adjust the pressure and control the flow rate, and observe for any leaks or abnormal noises.

4. Shutdown maintenance: First, shut off the gas supply and stop the pump, then drain any residual medium from the pump. If the pump is to be shut down for an extended period, flush the pump chamber with clean water or a cleaning agent.

5.Key points to note:Prolonged high-pressure idling without a medium is prohibited; ventilation and grounding of pipelines are required for flammable and explosive media operation.

1. Start media-free output:Air leak/blockage in the inlet pipe, low air pressure, or stuck check valve.

2. Insufficient flow pressure: Unstable air pressure, diaphragm wear, and pipeline blockage.

3. Abnormal noise and vibration during operation: Reversing valve malfunction, diaphragm damage, pump body not securely fixed.

4. Media leakage: Diaphragm aging, loose pipe joints, damaged gaskets.

5. Reversing valve malfunction: The gas source contains impurities, the valve core is worn, and the gas pressure fluctuates greatly.

6. Decreased self-aspirating ability:Small inlet diameter / clogged filter screen / poor diaphragm seal.