FKM (fluoro-rubber) diaphragms bridge the gap between everyday nitrile and premium PTFE. They handle many solvents, fuels and strong acids that swell or crack nitrile and neoprene, while staying more…
| Flow Rate | 0-30m³/h |
|---|---|
| Head | 0 – 50 / 70m |
| Power | —kW |
| Inlet / Outlet Diameter | 10 – 100mm |
| Material | PP Engineering Plastic, Aluminum Alloy, Cast Iron, Stainless Steel |
FKM (fluoro-rubber) diaphragms bridge the gap between everyday nitrile and premium PTFE. They handle many solvents, fuels and strong acids that swell or crack nitrile and neoprene, while staying more flexible and forgiving than PTFE — a cost-effective middle ground for aggressive but not extreme chemistry.
A QBY with FKM diaphragms suits solvent-based paints, fuels and mineral acids, and copes with higher temperatures than rubber. If you have told us the fluid but are unsure of the elastomer, FKM is often our first recommendation to test.
Applications: solvents, fuels and oils, strong acids, petrochemical, solvent-based coatings, chemical processing, aggressive media
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 |
Need the right QBY diaphragm pump for your medium and duty point? Talk to the HAQUANPUMP team — your satisfaction is our greatest pursuit.
QBY AODD PumpThe Full QBY FamilyThe QBY series covers eight standard sizes from 10 mm to 100 mm. Flow ranges from 0.8 m³/h to 30 m³/h. Head goes up to 60 meters. There’s a model for almost every job. Complete Mode…
QBY AODD PumpWhen You Need Big FlowThe QBY-80 and QBY-100 are the largest standard models. They handle high-volume transfer jobs where smaller pumps would struggle. Both models share the same robust design princip…
QBY AODD PumpChoosing the Right Body MaterialThe QBY comes in four standard materials. Each has strengths for different applications. Here’s a quick comparison. Material Comparison Table Material Weight Corrosion…