We offer the widest product range of low-flow (mass) flow meters and controllers on the market. Numerous styles of both standard and bespoke instruments can be offered for applications in laboratory, machinery, industry and hazardous areas.
Customer satisfaction, innovation and quality of product and service have been the cornerstones of Bronkhorst's success. Based on our experience, innovation and sense of responsibility, a relationship with Bronkhorst assures Performance for Life.
Learn more about how Coriolis-based flow meters can be used as microfluidic flow meter instead of thermal flow meters. Read the customer story of a microfluidics system builder who used Bronkhorst products.
Are you looking for technical documentation, are you interested to learn more about the measuring principles of Bronkhorst products, or you do want to get in contact with a Bronkhorst Service Engineer? This section will guide you to the relevant service & support topics.
Bronkhorst High-Tech BV the leaders in Mass Flow Meter / Mass Flow Controller technology for gases and liquids, Pressure Controllers and Evaporation Systems.
As a field service engineer, I’ll check our customer’s installations on-site. I often see issues regarding the chemical resistance of the used elastomer seals in our flow meters and flow controllers. The chemical resistance is something to consider before choosing the type of elastomeric seal and the body or sensor material of your flow meter or flow controller. How do you make the right choice?
The gas flow meters and flow controllers we have in our product portfolio nowadays are developed with a large gas database on board. This makes it possible to select virtually any gas you want to control with your flow controller.
Before selecting your flow meter, it is important to think about the chemical resistance based on your application. This is relatively easy when the instrument is dedicated for measuring only one gas, but it can be more challenging when the flow meter is used to measure multiple gases. In the latter case, you have to check the compatibility of each gas separately.
If you want to learn more about mass flow meters and mass flow controllers, check our blog ‘What is a thermal mass flow meter?’
It is best to base the choice of the elastomeric sealing material of your flow meter on the chemical resistance at operating conditions. Through the years, we have gathered a lot of information about the compatibility of various compounds, and we can advise you accordingly.
In-depth information: FFKM is the term used according to the American ASTM 1418 standard, whereas FFPM is the equivalent in the ISO/DIN 1629 standard. Both are perfluoroelastomeric compounds. These compounds contain a higher amount of fluorine than the above mentioned fluoreolastomers. EPDM is Ethyleen Propyleen Dieen Monomeer.
Besides the choice of sealing, you also should consider the body and sensor material of your flow meter. Stainless steel is a common material used for the body and sensor, but applications with aggressive chemicals may require a Hastelloy sensor, or a sensor coated for higher chemical resistance.
Check our beginners’ guide ‘How to select the best flow meter for your application’ or check our FAQs section.
A very useful site to help you select the right sealing material is the DuPont Chemical Resistance Guide.
If you have any doubts or questions about the chemical resistance, we are there to support you. Contact us for all your questions!
FLUIDAT is an online calculation tool to calculate flow rates and conversion factors for flow meters. Start calculating flow rates now!
Thermal mass flow meters are used to measure mass flow of low gas flow. A mass flow controller is a flow meter combined with a control valve.
Use of Veco's precision made it possible to develop a new Bronkhorst thermal mass flow meter: EL-FLOW Prestige.