Flowmeter - Pressure - Level - Temperature Solutions for today's environment

Ultrasonic Flow Meters

Deltawave Clamp On Energy Meter provides the ultimate solution for portable flow and energy measurement.

Alicat Mass Flow Meters and Controllers
The only Flow and Pressure porducts in the industry to come with a lifetime warranty. Alicat products are meant to last a lifetime, and we stnd behind that!
King Variable Area Flow meters
King's focus is on only using proven technology and longstanding methods to build the most accurate, versatile, and economical rotameters possible.
Product of the month

Suitable for Low-Flow and Gas Purge Applications

All stainless steel frame

Cost effective vertical mount

The King 7440 series flowmeter builds on the 7430 series to offer a more economical low flow metering solution.  Suited to purge metering and chemical dosing applications, the 7440 series rotameter offers a Borosilicate Kinglass metering tube and stainless steel.  Internal components vary dependant on flow rate and may include 316L stainless steel, black glass, sapphire, Carboloy or tantalum.  The 7440 is only available with ¼” NPTF connections with the option of 316L Stainless Steel or PVDF fitting materials.

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Tech Talk

Mass Flow Control for Gas Sensor Characterization and Calibration

This months PCT’s TechTalk looks at a local application with Cambridge CMOS sensors who are an industry leader in sensor technology. Their patented CMOS MEMS gas sensors use Micro-Hotplates technology to provide lower power consumption and faster response times for monitoring air quality and hazardous gases. A test platform was required for characterization and calibration of the sensors, during which carbon monoxide, ethanol or volatile organic compounds (VOCs) would be pumped into a test chamber with each sensor.

Because their own sensors are so fast, Cambridge CMOS Sensors needed a mass flow control system that also responded rapidly to generate varying gas concentrations in the test chamber. Each test would require different concentrations of the gases at flow rates ranging from 0.1 ml/min to 500 ml/min. Fast flow stabilization was also necessary to gather transient data and to conduct leak testing of the test chamber.

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