Mass Flow Meters and Controllers

I work in this business because I want to rule the low cost electronic mass flow meter market.. Nothing more. These Mass flow meters are for gases only and the maximum pressure is 150 PSIG.

It should be that you can save money buying Mass Floe Meters and controllers from http://www.massflowmetersandcontrollers.com/index.htm
Also there is an automated configuration tool to select the correct mass flow meter for your use.

http://www.massflowmetersandcontrollers.com/index.htm

Welcome to the web's premiere site with the fastest delivery and best pricing for Sierra Instruments' Electronic Mass Flow Meter and Mass Flow Controller equipment. We standardized on the best flow meter products on the market--Sierra Instruments. After researching all available brands of flowmeter and air flow measurement devices, we found that Sierra's offering is far and away the finest economical line available, and includes signature Sierra support and quality. We can meet your needs NOW--no more complex web sites to wade through, no more lengthy order forms, and no more waiting on a quote. Find your best buys on gas flow meters and thermal mass flow meters today! Be sure to check out our gas flow measurement devices, including the finest available gas flow rate meters, gas flowmeters and flow totalizers. Quickly select the Sierra model you need and have your product shipped for FREE within 10 business days. If you need it FASTER, we have 5 business day Expedited Deliveries available. Some models and ranges are even in STOCK, see our Specials on the right!

Why Mass Flow?

1) Direct mass flow measurement is more accurate and cost effective.
2) Direct Mass flow does not need any pressure or temperature compensation equipment or flow computers.
3) Provides virtual immunity to process changes in P & T; i.e., very repeatable measurements.
4) In Gases, density is highly variable. This makes volumetric gas flow very sensitive to changes in pressure and temperature.
5) Over 80% of all industrial processes-such as those involving chemical reactions, combustion, respiration, and HVAC-are based on mass flow, not volumetric flow.

Summary:
In most processes it is mass, not volume, which is the critical variable. Volumetric flow measurements are less reliable than mass flow measurements because changes in gas temperature and pressure will change the density of a fixed volume of gas. In the control process, additional errors can be propagated by back pressure changes in the process. Unlike rotameters, turbine meters and other volumetric flow devices, thermal mass flow meters and controllers are relatively immune to changes in inlet temperature and pressure. Because these instruments directly measure molecular flow, they provide the most reliable, repeatable and accurate method for delivering material from a supply volume to a process at a desired rate.