
ARO pumper

Atex diaphragm pumps
Maximum flow rate: 40.1 l/min. Maximum pressure: 6.9 bar. Available in grounded acetal.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Bolted pump to prevent leakage.
- ATEX-approved.
| Data | 1/4″ | 3/8″ | 1/2 inch | 1 1/2" |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar |

Electropolished diaphragm pumps
Max. flow rate: 465 l/min. Max. air pressure: 8.3 bar. Available in stainless steel.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Frost-free with Quick Dump technology.
- Bolted pump to prevent leakage.
- ATEX-approved.
| Data | 1/2 inch | 1" | 1 1/2" | 2 inches | 3 inches |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. | 465 litres per minute. |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar | 8.3 bar |

EXP membrane pumps in metal
Max. flow rate: 197 l/min. Max. pressure: 8.3 bar. Available in aluminium, acid-resistant stainless steel, cast iron and Hastelloy.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Frost-free with Quick Dump technology.
- Bolted pump to prevent leakage.
- ATEX-approved.
| Data | 1/2 inch | 3/4″ | 1" | 1 1/2" | 2 inches | 3 inches |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. | 465 l/min | 465 l/min |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar | 8.3 bar | 8.3 bar |

High-pressure diaphragm pumps
Max. flow rate: 238 l/min. Maximum air pressure: 6.9 bar. Maximum fluid pressure: 13.8 bar. Available in stainless steel.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Frost-free with Quick Dump technology.
- Bolted pump to prevent leakage.
- ATEX-approved.
| Data | 1" (3:1) | 1 1/2" (2:1) | 2 inches (2:1) | 3 inches (2:1) |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar |

Plastic diaphragm pumps
Max. flow rate: 465 l/min. Maximum pressure: 8.3 bar. Plastic. Available in polypropylene.,
PVDF and earthed acetal.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Bolted pump to prevent leakage.
- ATEX approved. (Acetal)
| Data | 1/4″ | 1/2 inch | 3/8″ | 1" | 1 1/2" | 2 inches | 3 inches |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. | 465 litres per minute. | 465 litres per minute. | 465 litres per minute. |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar | 8.3 bar | 8.3 bar | 8.3 bar |

Diaphragm pumps in metal
Max. flow: 340 l/min. Max. pressure: 8.3 bar. Available in aluminium, acid-proof stainless steel and cast iron.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Bolted pump to prevent leakage.
- ATEX-approved.
| Data | 1/2 inch | 1" | 1 1/2" | 2 inches | 3 inches |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. | 465 l/min |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar | 8.3 bar |

Plastic diaphragm pumps
Max flow rate: 378 l/min. Maximum pressure: 8.3 bar. Available in polypropylene and PVDF.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Bolted pump to prevent leakage.
| Data | 1/2 inch | 1" | 1 1/2" | 2 inches |
| Flow rate | 17.4 l/min | 40.1 litres per minute | 54.5 l/min | 465 litres per minute. |
| Pressure relief | 6.9 bar | 6.9 bar | 6.9 bar | 8.3 bar |

Diaphragm pump 2”
Max. flow rate: 651 l/min. Maximum air pressure: 8.3 bar. Max. particle size: 50 mm diameter. Available in acid-resistant stainless steel and aluminium.
- Newly developed EXP air motor with unusually low energy consumption.
- Newly developed long-life membranes.
- Never gets stuck in a dead end thanks to an unbalanced air vent.
- Frost-free with Quick Dump technology.
- Bolted pump to prevent leakage.


