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Diaphragm pump

A diaphragm pump is a positive displacement pump that uses a flexible diaphragm to transfer fluids. It operates without rotating parts in contact with the fluid, ensuring high safety and low contamination risk.


Key Features
• Leak-proof design: The diaphragm isolates the fluid from the pump' s driving mechanism, preventing leaks and cross-contamination.
• Versatile compatibility: Suitable for corrosive, viscous, or shear-sensitive fluids (e.g., chemicals, slurries, food ingredients).
• Self-priming ability: Can lift fluids from below the pump level without external priming, simplifying installation.

OBY- PP series/OBY eries/OBY2 serie

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QBY1 Stainless Steel Series

Air-operated diaphragm pumps with durable 304 stainless-steel construction, offering strong corrosion and wear resistance for demanding chemical and industrial fluid-transfer applications.

QBY1-15

304 stainless-steel diaphragm pump · 22 L/min · 70 m head · 4 m suction lift

QBY1-25

304 stainless-steel diaphragm pump · 57 L/min · 70 m head · 4.5 m suction lift

QBY1-40

304 stainless-steel diaphragm pump · 378.5 L/min · 84 m head · 5.48 m suction lift

We supply air-operated diaphragm pumps in 304 stainless steel, aluminium alloy and polypropylene configurations for transferring corrosive, viscous, shear-sensitive and particle-containing fluids.

Diaphragm Pump Product Range

AIR-OPERATED DIAPHRAGM PUMPS

QBY2 Aluminium Series

Lightweight air-operated aluminium diaphragm pumps designed for easier installation and transport, suitable for applications involving coatings, oils, organic solvents and other compatible fluids.

QBY2-15

Aluminium diaphragm pump · 22 L/min · 70 m head · 4 m suction lift

QBY2-25

Aluminium diaphragm pump · 57 L/min · 70 m head · 4.5 m suction lift

QBY2-40

Aluminium diaphragm pump · 378.5 L/min · 84 m head · 5.48 m suction lift

QBY-PP Polypropylene Series

Lightweight polypropylene air-operated diaphragm pumps with reliable sealing, designed for transferring corrosive, hazardous and volatile compatible fluids.

QBY-15PP

Polypropylene diaphragm pump · 22 L/min · 70 m head · 4 m suction lift

QBY-25PP

Polypropylene diaphragm pump · 57 L/min · 70 m head · 4.5 m suction lift

QBY-40PP

Polypropylene diaphragm pump · 378.5 L/min · 84 m head · 5.48 m suction lift

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