Not every pumping task needs a large pump. For laboratories, pilot plants, sampling, transferring from canisters or supplying dosing stations, small diaphragm pumps are the right choice. Compact Versamatic® air-operated diaphragm pumps offer the same advantages as their larger siblings: they can run dry, are self-priming and need no electrics.
The smallest Versamatic® pumps compared
|
E6 – 1/4" |
E8 – 3/8" |
E5 – 1/2" |
| Max. flow rate |
19 l/min |
26 l/min |
53 l/min |
| Max. operating pressure |
6.8 bar |
6.8 bar |
6.8 bar |
| Max. solids size |
1 mm |
2.5 mm |
1.6 mm |
| Suction lift dry / wet |
2.44 m / 6.7 m |
2.4 m / 6.7 m |
3.6 m / 9.1 m |
| Housing materials |
Polypropylene, PVDF, conductive PP |
Polypropylene, PVDF |
Polypropylene, PVDF, aluminium, stainless steel |
| Weight |
approx. 1.5 kg (PP) |
approx. 1.4 kg |
depending on version |
Data according to the product pages; the data of the selected version is authoritative.
Applications for small diaphragm pumps
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Laboratory and pilot plant: transferring chemicals, test set-ups, small batches
-
Dosing and feeding additives, colour concentrates or cleaning agents
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Sampling from tanks and pipes
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Emptying canisters and small containers – see also Emptying drums and IBCs
-
Inks and printing inks in printing machines
-
Machine building / OEM: as a component in cleaning, dosing and filling systems
Why a small air-operated diaphragm pump?
Electric miniature pumps are often the first choice for very small flows in the ml/min range. As soon as aggressive chemicals, solvents, solids or hazardous areas come into play, the small AODD pump plays to its strengths:
-
No motor, no electrics – conductive versions for hazardous areas (ATEX)
-
Chemically resistant thanks to polypropylene and PVDF housings with PTFE or Santoprene® diaphragms
-
Can run dry and are self-priming
-
Infinitely variable via air pressure – very slow stroke rates are also possible
-
Light and mobile – only about 1.5 kg in plastic versions
Which small diaphragm pump is right?
-
Up to approx. 19 l/min and very compact installation space: 1/4" E6
-
Up to approx. 26 l/min or fluids with small particles: 3/8" E8
-
Up to approx. 53 l/min or a metal housing required: 1/2" E5
All pumps up to 45 l/min can be found under Diaphragm pumps up to 45 litres per minute.
Frequently asked questions
What is the smallest air-operated diaphragm pump in the shop?
The Versa-Matic E6 with 1/4" connection and up to 19 l/min flow rate.
Are there manual diaphragm pumps?
Yes, hand-operated diaphragm pumps exist, e.g. for bilges or emergency emptying. For regular use, a small air-operated diaphragm pump is much more convenient and powerful.
Can I build a small diaphragm pump into a machine?
Yes. Thanks to the simple air connection and low weight, the small sizes are well suited as components in systems. For series requirements, please contact us.
