QBY Air Diaphragm Pump – Spark-Free, Explosion-Proof Transfer

In areas where a single spark is a hazard, an electric pump is a liability. The QBY runs on compressed air alone, so there is no motor, no switching arc and — once the pump is grounded — no static discharge either. That is what makes it a standard choice for flammable, volatile and toxic fluids.

There is a bonus in the physics: as compressed air expands on the exhaust stroke it cools slightly, so the pump does not build heat the way a motor-driven unit does. For solvent stores, fuel handling and chemical plants, that combination of no spark and no hot surface is exactly the point.

Applications: flammable solvents, volatile liquids, toxic media, petrochemical, oil and gas, paint and coatings, hazardous-area transfer

QBY Pneumatic Diaphragm Pump Technical Parameters

Parameter	Specification Range
Flow Rate	0 – 30 m³/h
Max Head	0 – 50 / 70 m
Port Size (Caliber)	10 – 100 mm
Working Temperature	-15℃ ~ +150℃
Working Air Pressure	0.1 – 0.7 MPa
Self-Priming Height	5 – 7 m
Max Passable Solid Particle	10 mm

Thank you for visiting HAQUANPUMP, a professional sewage pump manufacturer. For QBY diaphragm pump selection, pricing or a datasheet, contact our engineers — we usually reply within 24 hours.