Verderair VA
Available in metallic and non-metallic construction with many different wet-side materials, the VA range is compatible with chemically-aggressive and abrasive media.
| Max. flow | 1200 l/min |
| Max. discharge pressure | 8,6 bar |
Diaphragm Pump
Discover the capabilities of a diaphragm pump and
how it can be the right solution for your application.
Do you have questions about our diaphragm pump range?
One of our pump experts is here to support you.
Diaphragm pump
A diaphagm pump, also knows as a membrane pump, is a positive displacement pump that enables users in industries to standardise on a pump type that is suitable for a wide variety of fluids. Verderair diaphragm pumps, manufactured in-house and to the highest standards in the industry, are available in different materials, both metallic and non metallic, to suit any specific needs in fluid handling, no matter how difficult.
10 Ways to Kill your Diaphragm Pump
Curious about what you should be doing to preserve the life of your diaphragm pump? The following whitepaper has valuable insights into what can damage and even "kill" your diaphragm pump.
How does a Diaphragm Pump work?
A diaphragm pump operates by using a flexible diaphragm that moves back and forth to create a variable volume within the pump chamber. As the diaphragm moves up, it creates a vacuum, drawing fluid into the chamber. When the diaphragm moves down, it pushes the fluid out of the discharge valve. This type of pump is often used for its reliability and ability to handle various fluids without contamination, as the fluid does not come into contact with moving parts like gears or pistons.
Benefits of a Diaphragm Pump
- Increased productivity
- Less maintenance
- Reduced operational costs
- Improved working environment
Types of diaphragm pumps
Our Verderair range consists of two different types of diaphragm pump, air operated double diaphragm pumps, and electrically driven double diaphragm pumps. As their names imply, the key difference between the two would be the way the operate, with the former being driven by compressed air, while the latter is operated using an electric motor.
Question about how a diaphragm pump works?
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Our featured Verderair diaphragm pumps
Verderair PURE
The Verderair PURE is designed for heavy-duty operation, harsh chemicals and severe process conditions.
| Max. flow | 660 l/min |
| Max. discharge pressure | 7 bar |
Verderair HC-PURE
Our Verderair HC-PURE pumps are specifically designed with ultimate cleanibilty in mind which ensures hygienic durability for your pumps.
| Max. flow | 465 l/min |
| Max. discharge pressure | 7 bar |
Diaphragm Pump Applications
Our diaphragm pumps have high versatility and reliability in handling a diverse range of fluids and in varying conditions. Some of the applications include
- Chemical applications: some of the applications of a diaphragm pump in the chemical industry include metal surface treatment, unloading tankers, dosing additives and polymers, as well as pumping additives with sulfuric acid. The Verderair PURE is our ideal pick for these applications.
- Food and beverage: a diaphragm pump is also suitable for applications in the food and beverage industry. From preparation, to transport, to filtration, pasteurization and even CIP. A Verderair diaphragm pump, with its different possible combinations of materials and certifications, is a perfect choice for the food and beverage industry.
- Battery production: lithium battery production can be a lengthy process and thankfully, Verderair diaphragm pumps are essential to various steps in the production of these products. A diaphragm pump,is essential in steps within the process such as floccuent dosing, filter press, as well as unloading. One diaphragm pump in particular, the Verderair e-PURE excels and is the most popular choice of pump for acid leaching & crystallisation, as well as its dosing and transfer due to its chemical compatibility.
- Pharmaceutical applications: within the pharmaceutical industry, diaphragm pumps play a vital role within different areas. Some of the most popular applications include within soap and detergents, transferring of chemicals, media preparation, precise dosing of medicine and even tablet coating.
Why choose a diaphragm pump?
- Versatility: Suitable for various types of liquids including paste-like, thick, thin, and fluids with solids (up to 9.4 mm - 25 mm for Sanitary models).
- Reliability: Features an air valve design that prevents stalling and doesn't require air lubrication, with anti-icing features ensuring operation even in moist conditions.
- Durability: Designed for a long life, particularly the air motor in wet air conditions.
- Corrosion Resistance: Offers a wide range of wetted materials, including both metallic (aluminum, cast iron, stainless steel) and non-metallic (Acetal, Polypropylene, Kynar, conductive Polypropylene) options.
- Easy Installation and Maintenance: Simple to set up and service, also suitable as emergency pumps.