The QBY Pneumatic Diaphragm Pump is an air-operated double diaphragm (AODD) pump designed for handling corrosive, viscous, abrasive, and shear-sensitive fluids across multiple industries. Its unique design ensures leak-free operation, dry-run capability, and exceptional solids handling, making it ideal for challenging applications where traditional pumps fail.
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Technical Specification:
Capacity: 0-30m3/h
Head: 0~70m
Temperature:≤120℃
Suction Height: 6m
Material：Cast Iron、 Aluminum Alloy， Stainless Stee|，Engineering Plastic， Perfluoro rubber
Diaphragm：Buna-N Rubber, Chloroprene Rubber, Fluorine rubber, PTFE
Characteristic:
QBY Pneumatic Diaphragm Pump can be used in transporting the easy floating liquid and hard floating liquid. It has self-priming function without electricity motive; it is no leaking and no clogging. It is especially suitable for flammable and explosive place.
Key Features & Benefits:
1. Robust & Safe Operation
100% Leak-Free: No mechanical seals – eliminates leakage risks
Explosion-Proof: No electricity required (ATEX compliance available)
Self-Priming: Up to 6m suction lift (with fluid)
Dry-Run Capable: Unlimited dry-running without damage
2. Superior Fluid Handling
Solids Handling: Passes particles up to 10mm diameter
Viscosity Range: 1 to 50,000 cP
Chemical Compatibility: Works with acids, alkalis, solvents, and slurries
Shear-Sensitive: Gentle pumping action for emulsions & fragile fluids
3. Advanced Diaphragm Technology
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Tri-Layer Diaphragms:
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PTFE (chemical resistance)
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Santoprene® (flexibility & durability)
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EPDM/Nitrile (oil/fuel resistance)
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Diaphragm Life: 10+ million cycles (2X industry standard)
4. Energy & Cost Efficiency
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Low Air Consumption: Optimized air valve design reduces operating costs
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No Lubrication Needed: Maintenance-free operation
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Easy Maintenance: Tool-less diaphragm replacement in minutes
