Flow sensors are valuable tools for any industry where liquid or gas flow needs to be monitored to maintain system operations. In this article, learn how flow sensors work and how to use them in different applications.
How Does a Flow Sensor Work?
Flow sensors — also known as flow monitors or flow switches — monitor liquid or gas flow and work like a signal, similar to an on/off switch. As a safety precaution, they protect sensitive equipment in case of line ruptures, malfunctions, leaks, stoppage, and other issues. They are used in many industrial processes.
How flow sensors work varies based on the application and type of product used. For example, gas or liquid flows to instruments (recorders, analyzers, etc.) are usually very low in process systems. Still, ChemTec flow sensors and switches can instantly warn of flow stoppage or flow reduction. The units send a signal to an external alarm or light (versus visual flow meters, which are only helpful when someone is looking at them).
As another example, valve manufacturers can use flow switches and flow meters to test valve leakage on newly assembled or repaired valves. When installed downstream from valves, flow switches detect and signal if a tight shut-off is not made.
Which product is right for your application? Learn more about the similarities and differences between ChemTec’s flow sensors: the LPH Series, 125 Series, and 125 BP Series.
LPH Series Non-Adjustable Liquid/Gas Flow Monitor
Key Features
Used to monitor flows of corrosive and non-corrosive liquids and gasses, the LPH Series Non-Adjustable Liquid/Gas Flow Monitor features a close on-off differential, a visual indication of flow with the acrylic model, no seals, and in-line vertical plumbing.
Best Applications
The best applications are for analyzers, kidney dialysis machines, micro-biomedical machines, laser cooling systems, bubbler systems, and pollution sampling equipment.
LPH UHP Series
Key Features
The key features of the LPH UHP Series are its compact size and 1/2″ MVCR. It also features a close on-off differential, no seals, EP to 10RA, 316L stainless steel materials, reed switch contact output, and in-line vertical plumbing. In addition, it senses high/low flow conditions and confirms normal flow conditions.
Best Applications
The LPH UHP Series was made for applications with ultra-high purity gasses.
125 Series Standard Unobtrusive Adjustable Flow Monitor
Key Features
The 125 Series Standard Unobtrusive Adjustable Flow Monitor is best for applications where the ratio (normal flow/set point) is 10:1 or greater. Its key feature is minimal pressure drop. It offers a broad range of adjustability, compact size, and high resolution.
Best Applications
The best applications are for analyzers and welding systems, purge gasses, and wet stations.
125 BP Series
Key Features
The 125 BP Series monitors gasses or liquids and senses high and low flow conditions. Best for applications where the ratio (normal flow/set point) is 10:1 or greater, it features a compact size, broad range of adjustability, and high resolution.
Best Applications
The best applications are for vacuum systems, wet stations, gas analyzers, cooling systems, and industrial fluid lines.
Which Industries Need Flow Sensors?
Depending on the industry, flow sensors can be utilized in a wide range of applications, from small laboratories to large refineries, power plants, the semiconductor industry, pharmaceuticals, cooling systems, automotive, and more.
For industries that handle highly corrosive chemicals, ChemTec offers “all TEFLON©” flow switches.
Here are some of the top industries that can utilize flow sensors:
- Gas cabinets, process control
- Cooling systems
- Water treatment, pumps
- Industrial analyzers
- Semiconductor
- Automotive
- Aerospace
- Power plants
- Chemical
- Energy
- Pharmaceutical industries
Click here to learn more about specific industry applications. If you don’t see what you’re looking for, tell us about your application so our engineers can build a custom product that best fits your needs. Simply complete an application inquiry to get in touch with the team at ChemTec and receive a recommendation.
Find High-Quality Liquid Flow Sensors at ChemTec
ChemTec is your trusted solution for finding high-quality flow sensors. We create universal, custom, and non-stock units based on fit, form, and function. We have our own in-house engineering team, and we can deliver any quantity to meet your needs.
Plus, ChemTec is owned and operated in the United States. That means we build, assemble, and test all of our products right here in our factory located in Deerfield Beach, Florida, allowing us to provide reliable, personalized service to all of our customers.
Submit an Application Inquiry
At ChemTec, our representatives and in-house engineering team are always here to help you find or design the right option for your system. Submit an application inquiry today to find the product that meets your needs.
