When a fluid attacks ordinary rubber diaphragms, PTFE (Teflon) is the answer. It resists almost every strong acid, alkali and solvent in industrial use and tolerates media up to about 150 °C, which is…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
When a fluid attacks ordinary rubber diaphragms, PTFE (Teflon) is the answer. It resists almost every strong acid, alkali and solvent in industrial use and tolerates media up to about 150 °C, which is why a PTFE-fitted QBY is specified for the harshest chemical service.
PTFE diaphragms pair naturally with a stainless steel or polypropylene body for a fully corrosion-proof wetted path. Because PTFE is stiffer than rubber, these pumps are often built with a backing diaphragm — worth knowing when you order spares.
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 |
Applications: strong acids and alkalis, solvents, electroplating, semiconductor fluids, chemical processing, pharmaceutical, hot corrosives
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