3V Mini Electric Air Pump 0.5LPM Low Noise Electric Diaphragm Pump with Reflux Valve Protection

Centrifugal Air Pump Model 310A Size 3V, Air flow 0.5 LPM Key benefits Reflux valve design protects pump operation: if the outlet becomes blocked the motor continues to run while the reflux valve opens and water circulates inside the pump. This prevents pressure buildup at the outlet and maintains continuous operation. Reliable continuous electric drive: designed for electric power and centrifugal pump theory to provide steady low pressure flow suitable for air pump applications. Low noise and suitable for workplace use: built for quieter operation to reduce disturbance in sampling, transfer, and process environments. Main features Model number: 310A Size: 3V Color: 0.5lpm Power: Electric Usage: Air Pump Structure and theory: Centrifugal pump Pressure: Low pressure Air flow: 0.5 LPM Noise: low Why this pump solves common problems Prevents outlet blockage interruption: the reflux valve allows internal circulation when the outlet is blocked so the motor does not stall and the pump remains operational. Handles continuous operation demands: suitable for applications that require long running times without manual intervention. Simple integration and predictable performance: centrifugal design and low pressure output provide steady flow at modest power levels for air pumping tasks. Performance and compatibility Designed for low pressure air delivery at 0.5 LPM and continuous electric operation. Compact size 3V fits installations with limited space while providing consistent centrifugal pumping behavior. Suitable where quiet operation and steady, low pressure airflow are needed. Typical applications Sewage sampling: stable air supply and internal circulation protect the pump during intermittent or blocked outlet conditions encountered in field sampling. Liquid transfer in process systems: useful for low pressure transfer where continuous operation and reflux protection reduce downtime. Workplace equipment requiring low noise air circulation: laboratories, monitoring stations, and small treatment systems that need modest airflow with minimal acoustic impact. Specification summary Model: 310A Size: 3V Air flow: 0.5 LPM Power: Electric Structure: Centrifugal pump Pressure: Low pressure Special feature: Reflux valve that enables internal circulation when outlet is blocked This centrifugal air pump is intended for users who need a compact, low pressure, low noise electric pump with a reflux valve to maintain circulation under blocked outlet conditions.