20–50 l/min
Looking for an air-operated diaphragm pump for a flow rate of 20–50 l/min? Here you find all Versamatic air-operated double diaphragm pumps that cover this range economically.
How to choose the right size
The maximum flow in the data sheet applies at 7 bar air pressure, open discharge and water. Back pressure, long suction lines and the density and viscosity of the fluid reduce the actual flow. If your requirement is at the upper end of the range, choose the next larger pump – it runs slower, uses less air and lasts longer.
Good to know: air-operated diaphragm pumps can be throttled steplessly to almost 0 l/min via air pressure and air volume. They run most economically and with least wear at about 25–80 % of their maximum flow. That is why a pump appears in several ranges here – choose the range you actually need to pump.
Typical applications
- Paints & inks: printing inks for paper and textiles, UV inks, offset inks, dyes, glue
- Coatings: emulsions, latex, pigments, resins, solvents, thinners
- Adhesives: solvent- and water-based
- Pharma: liquids, creams and additives
- Cosmetics: toothpaste, shampoo, soap, emulsions, detergents
Consider density and viscosity
Density and viscosity of the fluid are decisive for the selection – they have a considerable influence on the effective flow rate. Viscous fluids such as resins, adhesives or chocolate reduce the flow significantly and require larger suction lines and a slower stroke rate. Heavy fluids such as slurries or cements increase the required air pressure. Please state density (kg/dm³) and viscosity (mPa·s) in your enquiry.
Matching pumps in our range
Versamatic air-operated double diaphragm pumps with this feature are available in these versions:
- Port sizes: 1" (DN 25), 1/2" (DN 15), 3/4" (DN 20)
- Housing materials: Aluminium, Stainless steel, PVDF, Polypropylene
- Diaphragms: EPDM, FKM (Viton), Hytrel (TPC), NBR (Buna-N), Neoprene (CR), PTFE, Santoprene (TPE)
All matching pumps are listed below – use the filters to narrow down flow rate, port size and materials.
Not sure which pump fits? Send us your medium, flow rate, pressure, temperature, density and viscosity – we will check the selection and reply with an offer.
Select characteristics
- SKU:
- AODD-E1AA5F559C-ATEX
- HAN:
- E1AA5F559C-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 182 Litres per minute
- Delivery pressure: max. 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE Fusion
- Solids size: 3,2 mm
- SKU:
- AODD-E1AA5F559C-B-ATEX
- HAN:
- E1AA5F559C-B-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1AA5F5S9C-ATEX
- HAN:
- E1AA5F5S9C-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1AA5F5S9C-B-ATEX
- HAN:
- E1AA5F5S9C-B-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1AA5T559C-ATEX
- HAN:
- E1AA5T559C-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 182 Litres per minute
- Delivery pressure: max. 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,2 mm
- SKU:
- AODD-E1AA5T5S9A-HP-ATEX
- HAN:
- E1AA5T5S9A-HP-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 125 Litres per minute
- Delivery pressure: max. 8,0 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,0 mm
- SKU:
- AODD-E1AA5T5S9A-HP-B-ATEX
- HAN:
- E1AA5T5S9A-HP-B-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 125 Litres per minute
- Delivery pressure: max. 8,0 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,0 mm
- SKU:
- AODD-E1AA5T5S9C-ATEX
- HAN:
- E1AA5T5S9C-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 182 Litres per minute
- Delivery pressure: max. 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,2 mm
- SKU:
- AODD-E1AA5T5S9C-B-ATEX
- HAN:
- E1AA5T5S9C-B-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1AA5TS59C-ATEX
- HAN:
- E1AA5TS59C-ATEX
- Item weight:
- 12,20 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Aluminum
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1AP1R129C
- HAN:
- E1AP1R129C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP1R129C-B
- HAN:
- E1AP1R129C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP1R1S9C
- HAN:
- E1AP1R1S9C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP1R1S9C-B
- HAN:
- E1AP1R1S9C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP1R229C
- HAN:
- E1AP1R229C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP1R229C-B
- HAN:
- E1AP1R229C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP2R229C
- HAN:
- E1AP2R229C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: BunaN® - NBR - Nitrile
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP2R229C-B
- HAN:
- E1AP2R229C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: BunaN® - NBR - Nitrile
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP3R339C
- HAN:
- E1AP3R339C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: FKM - Viton®
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP3R339C-B
- HAN:
- E1AP3R339C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: FKM - Viton®
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP4R449C
- HAN:
- E1AP4R449C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: EPDM - Nordel™
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP4R449C-B
- HAN:
- E1AP4R449C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: EPDM - Nordel™
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5F559C
- HAN:
- E1AP5F559C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5F559C-B
- HAN:
- E1AP5F559C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5T559C
- HAN:
- E1AP5T559C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5T559C-B
- HAN:
- E1AP5T559C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5T5S9C
- HAN:
- E1AP5T5S9C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP5T5S9C-B
- HAN:
- E1AP5T5S9C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 136 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP6X229C-B
- HAN:
- E1AP6X229C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Santoprene® - TPE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP6X669C
- HAN:
- E1AP6X669C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Santoprene® - TPE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP6X669C-B
- HAN:
- E1AP6X669C-B
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Santoprene® - TPE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1AP7X759C
- HAN:
- E1AP7X759C
- Item weight:
- 10,00 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 174 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Aluminum
- Diaphragm material: Hytrel® - TPC
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1KP3R339C
- HAN:
- E1KP3R339C
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: PVDF - Kynar
- Diaphragm material: FKM - Viton Rugged
- Solids size: 3,1 mm
- SKU:
- AODD-E1KP5F5T9C
- HAN:
- E1KP5F5T9C
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: PVDF - Kynar
- Diaphragm material: PTFE Fusion
- Solids size: 3,1 mm
- SKU:
- AODD-E1KP5T5T9C
- HAN:
- E1KP5T5T9C
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: PVDF - Kynar
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,1 mm
- SKU:
- AODD-E1KP6X669C
- HAN:
- E1KP6X669C
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: PVDF - Kynar
- Diaphragm material: Santoprene
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP1R129C
- HAN:
- E1PP1R129C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Polypropylene
- Diaphragm material: Neoprene® - CR
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1PP2R229C
- HAN:
- E1PP2R229C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: Nitrile - Buna Rugged
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP3R339C
- HAN:
- E1PP3R339C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: FKM - Viton Rugged
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP4R449C
- HAN:
- E1PP4R449C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: EPDM - Nordel Rugged
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP5F5T9C
- HAN:
- E1PP5F5T9C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 litres per minute
- Delivery pressure: 6,9 bar
- Housing material: Polypropylene
- Diaphragm material: Teflon® - PTFE
- Solids size: max. 3,2 mm
- SKU:
- AODD-E1PP5T5T9C
- HAN:
- E1PP5T5T9C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP6X669C
- HAN:
- E1PP6X669C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: Santoprene
- Solids size: 3,1 mm
- SKU:
- AODD-E1PP7X7T9C
- HAN:
- E1PP7X7T9C
- Item weight:
- 7,70 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 163 Litres per minute
- Delivery pressure: max. 7,0 bar
- Housing material: Polypropylene
- Diaphragm material: FDA Hytrel Thermo-Matic
- Solids size: 3,1 mm
- SKU:
- AODD-E1SA5F559C-ATEX
- HAN:
- E1SA5F559C-ATEX
- Item weight:
- 18,10 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 182 Litres per minute
- Delivery pressure: max. 8,6 bar
- With explosion protection (ATEX)
- Housing material: Stainless Steel
- Diaphragm material: PTFE Fusion
- Solids size: 3,2 mm
- SKU:
- AODD-E1SA5F559C-B-ATEX
- HAN:
- E1SA5F559C-B-ATEX
- Item weight:
- 18,10 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Stainless Steel
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1SA5FS59C-ATEX
- HAN:
- E1SA5FS59C-ATEX
- Item weight:
- 18,10 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 144 Litres per minute
- Delivery pressure: 8,6 bar
- With explosion protection (ATEX)
- Housing material: Stainless Steel
- Diaphragm material: PTFE
- Solids size: 3,2 mmFurther technical data
Compatible repair kits or spare parts
- SKU:
- AODD-E1SA5T559C-ATEX
- HAN:
- E1SA5T559C-ATEX
- Item weight:
- 18,10 kg
- Self-priming air-operated diaphragm pump (dry)
- Connection size: 1 Inch
- Flow rate: 182 Litres per minute
- Delivery pressure: max. 8,6 bar
- With explosion protection (ATEX)
- Housing material: Stainless Steel
- Diaphragm material: PTFE (2-Pc)
- Solids size: 3,2 mm