Operating Principle of Equilibar Back Pressure Regulators
The only moving part within an Equilibar is a supple diaphragm thereby enabling frictionless operation without hysteresis or cracking pressure. Because it is dome-loaded, the balance of forces provides highly reliable, stable back-pressure control. At the same time, the multiple orifice design ensures a huge turn-down range (an ultra-wide flow range) typically 100 times wider than traditional regulators or valves.
Evaluation of Alicat Mass Flow Controllers’ Resistance to Backpressure Contamination
Mass flow controllers (MFCs) are essential to many modern production and test processes. Reliable and precise flow control is required for sustained and efficient production in such diverse applications as glass fabrication and bioprocessing.
It is known that Alicat’s differential pressure based mass flow meters and controllers are more resistant to errors caused by this type of contamination than thermal conductivity based designs1—but just HOW resistant are they? We set up an experiment to simulate contamination with foamy liquid and examine its effects on an Alicat MFC’s ability to accurately control mass flow.
Analysis of Temperature and Pressure Conditions on Flow Measurement
Mass flow measurements have achieved never before seen levels of accuracy and precision. But how do you know what level of precision you need? And further, how does this information relate to your unique application or system? This information will equip you to make the most of your existing instruments and intelligently evaluate new instrumentation for your particular system. Get the latest information on why specifications matter and what impact this will have on your mass flow measurements!
Simplified Gas Line Configuration for Bioreactors and Bioprocess Systems
An example of how to reduce cost and complexity for gas inputs utilizing high controllable range mass flow control.
As the need for even more potent and specific pharmaceuticals grows, Pharma manufacturers have turned to Biologics to meet the increasing needs to solve complex and currently untreatable disease conditions (including cancer and myriad genetic diseases).
Biocompatible wetted materials are important to avoid contamination
All Alicat BIO series mass flow meters and controllers use BPE approved component. This means that every BIO series unit ensures that fragile bioreactions remain undisturbed by contaminants introduced by your mass flow control systems. This article discusses why this is a critical concern for professional bioprocess engineers and how we address it.
Gas Flow Control - Cost Versus Specification Balancing
Within the field of gas mass flow control there are several manufacturers vying to supply their equipment into industry. Each have their own strengths, and each have their own weaknesses, although all have their merits within their chosen industry sector or application segment. An alternative view is to take a given flow control process and then apply the best, most cost effective, technique or solution within the constraints of cost:specification balancing.
Read how an Equilibar General Service GSD helps the process of regulating pressure in Tank Blanketing.
Ever wondered about the inner workings of a Turbine Flow Meter and how they measure so accurately? We have written this article which you may find useful.
A rotameter is a form of variable area flow meter which has a simplistic operation whereby a liquid or gas passes through a tapered tube. In order for this gas to pass through the tube it must first raise a float held within the tube. When a rotameter is used with a liquid the...
Premier Control Technologies continue their support of the Bio-Tech Industries and following extensive voice-of-the-customer research they are proud to announce the latest Alicat Scientific BIO- Series of Mass Flow Meters/Controllers where modern design and solid-state construction provide solutions for many applications.