Diaphragm Pumps
Air-Operated Diaphragm Pump
An air-operated diaphragm pump is a positive displacement pump driven by compressed air instead of an electric motor, delivering fluid through the reciprocal motion of two diaphragms. It is resistant to dry running, self-priming and operates safely in ex-proof environments and with viscous, abrasive and solid-laden fluids.
Available with PP, aluminium and PVDF body options and PTFE or Santoprene diaphragm choices. Operates at up to 8 bar air pressure; for example, the 1″ model delivers 110 l/min flow, 80 m head and 4 m dry lift.
8 barMaximum air pressure
Dry liftSelf-priming
PP / Al / PVDFBody
PTFEDiaphragm option
Benefits
- No electricity required, suitable for ex-proof environments
- Resistant to dry running
- Handles viscous and solid-laden fluids
- Broad chemical resistance
Applications
- Chemical and acid transfer
- Paint, ink and adhesive
- Wastewater and sludge
- Food and cosmetic fluids
Technical Specifications
| Drive | Compressed air (max. 8 bar) |
|---|---|
| Body | PP, aluminium or PVDF |
| Diaphragm | PTFE or Santoprene |
| Dry lift | Up to 4 m |
| Connection | Threaded (e.g. 1″) |
Materials
| Body | PP, aluminium or PVDF |
|---|---|
| Diaphragm | PTFE / Santoprene |
| Balls | PTFE / Santoprene / Stainless Steel |
Why ORFA?
Since 1985Over 40 years of experience in industrial piping equipment supply.
Technical ConsultingSupport in selecting the correct valve according to line pressure and size.
Stock DeliveryCommon sizes shipped from warehouse same day.
Spare PartsBall seals, packing and arm kits and other valve spare parts from a single source.
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