In laboratories or even in industrial environments, liquids or gases have to be transported from one place to another. Pump systems provide valuable support here. A membrane vacuum pump is particularly durable and clean. At MedSolut.com you can choose your suitable product from a variety of brand manufacturers. Our experts will assist you with competent advice and excellent service.
The functioning of a diaphragm vacuum pump is based on the principle of a piston pump. In this case, medium is sucked in by moving a piston and opening the inlet valve or expelled by opening a second valve. In a diaphragm pump, however, a diaphragm is used instead of the piston and can be moved mechanically, pneumatically, electromagnetically or hydraulically.
By using the diaphragm, the drive is separated from the medium to be pumped. This prevents impurities from the pumped medium, such as liquids containing particles, from entering the drive. A diaphragm vacuum pump is therefore characterised by a particularly long service life and is also quiet and low-maintenance.
In the laboratory, diaphragm pumps are mainly used to achieve a vacuum. They are particularly suitable for this purpose, as no oil is required for the diaphragm and thus an oil-free vacuum can be guaranteed. These types of laboratory pumps are often used for the standard procedure of achieving a coarse or fine vacuum down to 0.5 mbar.
Due to its insensitivity, the diaphragm pump has established itself especially in an environment where aggressive substances are used. Thus, a diaphragm vacuum pump can be used in the laboratory as well as in an industrial environment. Typical applications are:
evacuation of laboratory equipment such as rotary evaporators,
as a backing pump for achieving high vacuum in analytical instruments such as electron microscopes or also
for leak detection.
In addition to achieving a stable vacuum, the aim can also be to generate compressed air. Furthermore, degassing, support of distillation processes and filtration processes as well as the drying of moist substances are among the application areas of the pump. The areas of application are widely spread over numerous industries and include the chemical industry and physical applications as well as the electronics or food industry.
Due to the different areas of application and tasks, there are various design variants. Diaphragm vacuum pumps differ, among other things, in their delivery capacity and the vacuum to be achieved as well as in their chemical and physical resistance.
Diaphragm vacuum pumps can vary in their delivery rate. The transported quantity of the pumping medium is mainly defined by the mechanism of the diaphragm deflection. The pumps at MedSolut.com vary in their flow rate between 0.36m3/h, as with the KNF LABOPORT Mini Diaphragm Vacuum Pump N 86, and up to 3.6m3/h, as with the KNF LABOPORT Chemically Resistant Diaphragm Vacuum Pump N 840.1.2 FT.18. In most cases, a high flow rate is also associated with higher energy consumption. With some models, the delivery rate can also be selected in various stages.
The final vacuum to be achieved is also a decisive distinguishing feature. Depending on the application, it may be necessary to achieve a particularly fine vacuum. The ultimate vacuum is defined by the mechanism of the diaphragm deflection and by the diaphragm material. The AP 30 diaphragm vacuum pump, which you can also find in our online range, can achieve an ultimate vacuum range of 100 mbar.
The chemical resistance of the diaphragm vacuum pumps is mainly defined by the materials chosen for the diaphragm and the valve seals. For example, particularly chemical-resistant materials such as fluorocarbon rubber are used for the seals. An example of a corresponding product from our portfolio is the diaphragm vacuum pump N 840.3 FT.18 from KNF.
Diaphragm vacuum pumps also differ in their dimensions and weight. This can be decisive if laboratory pumps are to be used in laboratory fume cup boards, for example. Small and light pumps, such as the KNF LABOPORT Mini Diaphragm Pumps N 811, are handy and very flexible to use as most of them have a low vacuum range and pumping speed. Stable and larger pumps, such as the KNF diaphragm vacuum pumps N 145.1.2, are often more powerful and stable.
Numerous accessories are available for the individual diaphragm pumps, with which you can optimally adapt your pump to your requirements. Among others, you can choose from the following accessories:
Flanges & Connections: With various flanges and connections you can ensure that your vacuum pump is always optimally connected to the vessel to be evacuated.
Hoses: At MedSolut.com, hoses are available in various diameters and materials.
Fault plates and noise dampers: With special fault plates and additional accessories for noise damping, you can ensure that your pump stands securely and that the pumping process is quiet.
Valves: Special control valves allow precise adjustment of your desired vacuum.
You cannot find what you are looking for? Contact our service and we will help you quickly!
At MedSolut.com you can choose from a wide range of high-quality diaphragm vacuum pumps. We currently carry pumps from the following brand manufacturers:
The family-owned company from Freiburg im Breisgau has established itself as one of the leading suppliers in the field of diaphragm pumps. Since 1946, the company has grown steadily and, with 17 locations, is now a global player with worldwide delivery. In our online portfolio, you can purchase a range of high-quality and reliable pumps from the manufacturer.
Laboratory instruments and vacuum pumps from the IKA Group are distinguished by their high quality and exceptional functionality. Since 1910, the company with its 900 employees has achieved one of the leading positions on the international market. With eight locations on four continents, the IKA Group supplies its products worldwide.
Phoenix Instruments GmbH is still a young company. Since its foundation in 2010, the small company has been offering laboratory instruments with high quality standards at a reasonable price and with excellent service. We also carry some high-quality pumps from this manufacturer at MedSolut.com.
If you would like to buy a diaphragm pump to bring your laboratory up to the latest technical standard, we are at your disposal with excellent and competent advice. Contact us and our experts will ensure that you get the best equipment for your needs. You can reach us by phone on +49 30 209 657 900 or email us at info@medsolut.com.
By selecting "Accept all", you give us permission to use the following services on our website: YouTube, ReCaptcha, Doofinder, Google Analytics, PayPal Express Checkout und Ratenzahlung. You can change the settings at any time (fingerprint icon in the bottom left corner). For further details, please see Individual configuration and our Privacy notice.
The settings you specify here are stored in the "local storage" of your device. The settings will be remembered for the next time you visit our online shop. You can change these settings at any time (fingerprint icon in the bottom left corner).
For more information on cookie lifetime and required essential cookies, please see the Privacy notice.
To view YouTube contents on this website, you need to consent to the transfer of data and storage of third-party cookies by YouTube (Google). This allows us to improve your user experience and to make our website better and more interesting. Without your consent, no data will be transferred to YouTube. However, you will also not be able to use the YouTube services on this website.
Embedding videos
Processing company:Google Inc.
Terms of use: Terms of use of the providerTo submit forms on this page, you need to consent to the transfer of data and storage of third-party cookies by Google. With your consent, reCAPTCHA, a Google service to avoid spam messages via contact forms, will be embedded. This service allows us to provide our customers with a safe way to contact us via online forms. At the same time, the service prevents spam bots from compromising our services. After you gave your permission, you might be asked to answer a security prompt to send the form. If you do not consent, unfortunately you cannot use the form. Please contact us in a different way.
Stopping spam bots
Processing company:Google Inc.
Terms of use: Terms of use of the providerTo send data to Doofinder, you need to consent to the transfer of data and storage of third-party cookies by Doofinder.. This allows us to improve your user experience and to make our website better and more interesting.
Doofinder Conversion-Tracking
Processing company:DooFinder S.L.
Terms of use: Terms of use of the providerVerwendung von Google Analytics / Google Tag Manager
Verwendet von Google Analytics / Google Tag Manager, um die Handlungen des Benutzers auf der Webseite zu analysieren, mit dem Zweck der Messung der Wirksamkeit einer Werbung sowie Verbesserung der Webseite (usability).
Processing company:Google Inc.
Terms of use: Terms of use of the providerIn order to unlock offers for extended payment options, in particular express checkout and payment in instalments, we require your consent to the data transfer and storage of third-party cookies of the payment provider PayPal. This allows us to also offer you express checkout and payment by instalments. Without your consent, only the technically necessary data transfer to PayPal will take place, but you will then not be able to use the express checkout or extended offers for payment by instalments on this site.
Using express checkout and Displaying offers for payment in instalments for individual items or your entire purchase.
Processing company:PayPal
Terms of use: Terms of use of the providerWould you like to see these contents? Activate the desired contents for one session only or allow the website to remember these settings. Once you have given your consent, the third-party data can be loaded. For this, third-party cookies might be stored on your device. You can change these settings at any time (fingerprint icon in the bottom left corner). For further details, please see the Privacy notice.