10/12/07 : The Evolution of Thermal Mass Flow Meters
Thermo-Systems, Inc. (TSI) began in its founder’s basement in 1959, with a cooled-film anemometer designed for transient measurements in high temperature fluid flows. This led to TSI’s hot-film and hot-wire anemometers, the first commercial products of this type. These immersion-type devices were used mainly as research instruments, many related to environmental pollution. More>>

10/12/07 : Micro Fluidic Flow and Pressure Control Modules for Integration Into Compact Systems
Equipment manufacturers are looking for compact solutions to monitor or control the gas flow or pressure within their systems. As these systems are getting smaller and smaller, the incorporated flow and/or pressure control units need to be miniaturized. For example, the dimensions of a conventional gas chromatograph (GC) are approximately 1 x 1 x 1 m. The latest generation of (portable) GCs may have dimensions down to circa 25 x 25 x 25 cm. More>>

17/09/07 : Maintenance Free Flow Monitoring
A flow monitoring site located on the effluent of the Town of Erie Colorado’s Water Reclamation Facility had been problematic from the start due to a very steep fall designed into the system just in front of the metering location. Erie, Colorado’s Water Reclamation Facility was built in 1998 and is a 1.2 mgd activated sludge water reclamation facility. The water reclamation facility utilizes various physical and biological processes to remove the organic and inorganic constituents from wastewater generated by residential, commercial, and industrial sources. More>>

17/09/07 : Solid Conveying Eductors
Fox Valve is the leading global supplier of venturi eductors and venturi transport systems for pneumatic conveying of powders, pellets, and bulk solids. They enable the use of low pressure air ( below 14 psig or 1 bar) to be used to move powders, pellets, and bulk solids with no moving parts. More>>

18/08/07 : Low-Power Portable Flow Meters
Tucson, Arizona- Alicat Scientific Inc.'s series of portable mass flow meters and liquid flow meters, utilizes a battery pack with a standard 9 volt battery to make metering gas flow, pressure, or water flow in the field, and in the lab, convenient and reliable. More>>

18/08/07 : Turbine Flowmeters for Aerospace Engine testing
Hoffer Flow Controls has been awarded a contract to supply turbine flowmeters to a major U.S. space agency. The turbine flowmeters will be used to test large propulsion engines. We are pleased to be a part of this program. The customer specifying the turbine flowmeters has been playing a key support role since the early 1960's with work on the Saturn program. More>>

13/08/07 : Solid State Air Flow Sensing
Typically the measurement involves two PTC thermistors embedded in the probe tip or wall of the sensor. One of the PTC thermistors (the reference thermistor) monitors the temperature of the medium being measured (air, water, oil, etc.) while the other is heated a fixed percentage above the reference thermistor. This sets up a differential resistance between the two. More>>

13/08/07 :Magnetic Inductive Flowmeter for Water Treatment at Coca Cola FEMSA
In the Coca Cola batching plants of the FEMSA company in Buenos Aires, Argentina, à SIGNET water and waste water treatment devices are being implemented. The FEMSA company, which is domiciled in Mexico and the actual licensor for Coca Cola batching in the city of Buenos Aires, Argentina, wants to renovate and expand the water treatment systems at their batching plants. More>>

04/08/07 : Flowmeter for Valve stem leak test
Brooks low flow thermal mass flow meters provide a simple and accurate method of testing flow components for outboard leakage. Regulated air or helium is used to pressurize the valve under test. The Brooks 5860E will precisely measure any leakage at the valve stem. More>>

19/07/07 : Data Delivery Services
Marsh-McBirney’s Data Delivery Services (DDS) Program has been enthusiastically embraced by flow professionals nationwide. In the following interview Dave Baker, DDS Manager, discusses the many advantages that DDS offers and why he feels that this new service is going to turn the flow industry upside down.More>>

19/07/07 : Liquid flow sensor for nano- and micro-flow ranges
Accurate measurement and control of tiny liquid flows of the order of nanolitres through millilitres per minute is becoming more and more important for a lot of applications in the life science, analysis (e.g. HPLC), biotech, synthesis (of e.g. pharmaceuticals) and nanotechnology markets. More>>