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AirLife Asthma Check Peak Flow Meter and Industrial Flow Meter Selection for Medical and Process Lines
Quick Answer: Silver Automation Instruments does not sell the AirLife Asthma Check Peak Flow Meter. It is a home respiratory tracking device for patients. If your project needs industrial flow meters for medical gas, water, steam, or process lines, we supply electromagnetic, thermal mass, vortex, and Coriolis instruments with 4-20 mA HART and Modbus outputs.
What the AirLife Asthma Check Peak Flow Meter Is
The AirLife Asthma Check Peak Flow Meter is a handheld plastic device. Patients use it at home to track peak expiratory flow in liters per minute. The typical range is 60 to 800 L/min depending on the model. This device is a consumer medical product. It is not built for process piping, high pressure gas, steam, or industrial water lines. Hospital projects and medical device importers sometimes search for this item. In practice, the real need is often utility flow measurement, not the peak flow meter itself.
Where Industrial Flow Meters Fit in Medical Device Production
Medical device makers who assemble respiratory products still need industrial flow meters. A compressed air line at 7 bar needs a thermal mass flow meter. An oxygen mixing skid needs a meter with stainless steel wetted parts. Here is the thing. A home peak flow meter cannot measure pipe flow. But a SIL-TMF thermal mass flow meter covers gas flow ranges from 0.1 to 120 Nm3/h. It is available in DN15 to DN50 sizes. Accuracy is ±(1.5% RD plus 0.5% FS). Outputs include 4-20 mA HART and RS485 Modbus.
We supplied three SIL-TMF-DN15 meters to a respiratory device assembler in Indonesia last year. They used two meters for oxygen flow calibration at 5 L/min and 50 L/min. The third meter measured compressed air to the assembly line. All three sent 4-20 mA signals to a PLC.
Hospital Utility Lines and Flow Measurement
Hospitals run medical gas, chilled water, and steam lines. These systems need flow data for energy management and safety. A central oxygen header at DN20 or DN25 works with a thermal mass flow meter. It gives mass flow output in Nm3/h or kg/h. Because oxygen is a clean gas, the meter needs no moving parts.
For chilled water, an electromagnetic flow meter is a better choice. The SIL-MAG series works from DN15 to DN300. It has a PTFE liner and 316L electrodes. It reads flow from 0.2 to 10 m/s. Use 4-20 mA HART for long cable runs. A hospital in Ho Chi Minh City installed a SIL-TMF-DN20 on the oxygen header. The signal goes to a building management system through Modbus RTU.
Water and Steam Measurement
Pharmaceutical plants that make inhalation drugs need purified water flow meters. An electromagnetic flow meter is a standard tool. It handles water with conductivity as low as 0.5 µS/cm if you select the right electrodes. The SIL-MAG DN25 meter measures flow from 0.5 to 5 m3/h. It suits purified water loops and clean utility lines.
Steam sterilization needs a vortex flow meter. The SIL-VOR series handles steam at temperatures up to 250°C and pressures up to 25 bar. A DN25 vortex meter measures steam flow from 8 to 80 kg/h. It works well for autoclave supply lines. In Qatar, a pharmaceutical customer used a SIL-VOR-DN25 on a 6 bar steam line. The meter provided pulse output and 4-20 mA HART to the control system.
How to Choose the Right Meter for Your Line
Send us the fluid name, pressure in bar, temperature in °C, pipe size in DN, and flow range. For gas, tell us if it is oxygen, compressed air, nitrogen, or natural gas. For liquid, give conductivity in µS/cm and viscosity in cP if known. For steam, provide pressure and temperature. This detail helps our engineers select the right model. Do not send only the word flow meter. That slows down the quote.
Most engineers skip the part about conductivity for electromagnetic meters. But conductivity matters a lot. A cooling tower water line at 800 µS/cm works fine. A condensate line at 5 µS/cm may need a special electrode. We ask because we have seen wrong selections in Southeast Asia and the Middle East.
FAQ
Does Silver Automation Instruments sell the AirLife Asthma Check Peak Flow Meter?
No. We do not sell home respiratory devices. We supply industrial flow meters for gas, liquid, and steam lines.
What flow meter do you recommend for medical oxygen at low flow?
A thermal mass flow meter like the SIL-TMF DN15 works well. It measures from 0.1 to 120 Nm3/h. Use 4-20 mA HART for the control signal.
Can an electromagnetic flow meter measure purified water?
Yes. Choose a meter with PTFE liner and 316L electrodes. It works from 0.5 µS/cm conductivity.
What information do you need for a quotation?
We need fluid, pressure in bar, temperature in °C, pipe size in DN, flow range in kg/h or m3/h, and signal type. Send this data by email or Whatsapp.
Do you ship to countries outside Australia?
Yes. We ship to Southeast Asia, Oceania, Latin America, Africa, and the Middle East. Ask about delivery time for your city.
Contact Silver Instruments for industrial flow meter selection. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610.