flow regulator Articles
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Improved valve control can significantly reduce methane emissions
Introduction The natural gas industry commonly uses pneumatic devices powered by pressurised natural gas as valve controllers and pressure regulators. However, these devices are one of the main sources of vented methane emissions inthe industry, with 51 billion1 cubicfeet released peryear in the production sector alone. These levels can be reduced or even completely eliminated by replacing high ...
By Rotork plc
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Older Power Plants Threatened by Drought, Heat, Regulations
A 1953 postcard shows a power generating plant in North Carolina. A recent study of such ‘once-through’ power plants in the eastern U.S. showed they were vulnerable to drought, heat, and regulations. Study finds ‘once-through’ plants are vulnerable, but they can be retrofitted to recirculate water A new study by Duke University researchers has determined that droughts ...
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Is Micro Switch The Same As Safety Switch?
One of the major functions or roles of a micro switch is to ensure that appliances are functioning as expected. They can also be used for powering bulbs/lights. This is all about having them turned on/off via a snap-action button as many would like to call it. There are many ways that these switches are being put to use in modern times. For instance, they have become an integral part of ...
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An Introduction to Ventilation Butterfly Valve
Overview: Ventilation butterfly valve is used in chemical industry, building materials, power plants, glass and other industries in the ventilation, environmental engineering dust or hot air gas pipeline. It acts as a gas medium to regulate and control the flow or shut-off in the pipes. Ventilation butterfly valve is a non-sealed which works in medium lower than or equal to 572 degrees ...
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Steam Heater Pulp Stock Heating Paper Mill
After upgrading its bleach plant in 1987 to accommodate a two-stage elemental chlorine-free (ECF) bleach sequence, Cross Pointe Paper (now Flambeau River Papers LLC), Flambeau mill in Park Falls, Wis. subsequently added a totally chlorinefree (TCF) sequence in response to market demand. The TCF sequence, however, required heating, rather than cooling, of the mill's mediumconsistency stock during ...
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High voltage switchgear SF6 maintenance – Case Study
Just like the main circuit breaker in your home, city grids have main on/off switches called switchgears. When these high voltage switchgears open or close, huge "lightning-like" arcs of electricity are created. If not maintained correctly, these sparks can causewidespread power outages and pose a safety risk. To avoid these dangerous sparks, power companies have traditionally filled the sealed ...
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Manifold Particle Monitoring: Improved Accuracy
The Lasair III Aerosol Particle Counter is the latest generation of aerosol particle counter from Particle Measuring Systems. The Aerosol Manifold II is designed to work with the Lasair III counter under the control of Particle Measuring Systems facility monitoring software (Facility Net). The Lasair III particle counter uses a patented pressure measurement system to avoid the undercounting ...
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PRECAUTIONS IN THE MAINTENANCE OF SLURRY PUMPS
Hebei Procast tech co.,ltd The slurry pump is widely used in many industrial fields, and its main purpose is to transport the medium with particles, but the relatively complex working conditions may lead to greater wear in the daily use of the slurry pump. in order to prolong the service life of the slurry pump, the best way is to strengthen the daily maintenance of the slurry pump. 1.When the ...
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Air quality management - from traffic management to environmental traffic management
Traffic management systems are commonly used to optimize traffic flow in urban areas, e.g. to prevent traffic congestion. However, the regulation of traffic flows can also be used to control traffic induced emissions and therefore affects air quality. To use a traffic management system as an instrument for the benefit of air quality, the application requires reliable information about the current ...
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Experiences from a round Robin test for flue gas temperature, volume and flow measurements
ABSTRACT In Flanders, laboratories, recognised for emission measurements in the framework of the environmental legislation (Vlarem II), have to implement a quality system that meets the requirements of EN 45001 and are forced to participate in external quality controls organised by AMINAL, the Flemish Administration for environment and/or the reference laboratory for air measurements, e.g. Vito ...
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Prediction of the three-dimensional flow field and bed shear stresses in a regulated river in mid-Norway
This study evaluates the use of two Computational Fluid Dynamics (CFD) techniques in calculating the three-dimensional flow and bed shear stress distribution in a regulated river reach near Trondheim, Norway. The two different CFD codes being used in this study are: one commercial FLOW-3D and an in-house program, SSIIM, developed by the third author (NRBO). One of the primary differences between ...
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TopAir`s Fume Hood
TopAir, Statitech Israel’s flagship brand, manufactures a full line of superior cleanroom equipment including a reliable fume hood for neutralizing potential airborne chemical hazards in the laboratory. The fume hood mechanism offers maximum protection to laboratory staff working at a cleanroom table under the fume hood. There are two basic types of fume hood. Many industries use a large, ...
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What are the most commonly used control valves in the oil and gas industry?
Here at MGA Controls, we are experts when it comes to the range of industrial control and instrumentation devices. Our expertise spans a wide range of industrial applications and environments, including the oil and gas industry. Read on to learn about the 5 most commonly used control valves within oil and gas applications and why MGA Controls are one of the leading oil and gas valve suppliers. ...
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Knowledge-based system for automatic MBR control
MBR technology is currently challenging traditional wastewater treatment systems and is increasingly selected for WWTP upgrading. MBR systems typically are constructed on a smaller footprint, and provide superior treated water quality. However, the main drawback of MBR technology is that the permeability of membranes declines during filtration due to membrane fouling, which for a large part ...
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Glass manufacturer controls gas ratios - Case Study
For a specialty glass manufacturer that constructs high-quality glass containers for the pharmaceutical and analytical industry, manual control of air and natural gas flow to the burner tip had resulted in unacceptable levels of rejected material, as well as excessive gas consumption. The process engineers were seeking methods to improve glass quality, reduce raw material waste, and increase ...
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Sierra helps Biotech firm build their Competitive edge - Case Study
Challenged by their outdated gas mixing systems, budgetary constraints and a turbulent economy, a leading US biotech firm, who depends on precision gas mixing and blending to maintain synthetic air environments for research, sought out Sierra to help streamline and improve their processes and cut costs. Sierra engineers identified current system weak points and recommended the new Sierra ...
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Electrically driven portable pumps
As a manufacturer of mobile pumps, we see electric motors becoming increasingly popular. On construction sites and in temporary pumping installations more attention is paid to stable power supplies. BBA Pumps has completely renewed the platform for electric mobile pumps and is ready for the future. How does it work? Very simply Mobile electric pumps in stackable frames or sound attenuated ...
By BBA Pumps
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The Product Use of Impact Rock Crusher
The Product Use of Impact Rock Crusher High efficiency impact crusher, also known as high efficiency artificial sand making machine, is a high performance impact rock crusher developed by the company on the basis of PCL series impact crusher, with many national invention patents. Its main characteristic is to improve the linear speed of spindle rotor, and to effectively increase the impact force ...
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Sierra helps biotech firm build their competitive edge
Challenged by their outdated gas mixing systems, budgetary constraints and a turbulent economy, a leading US biotech firm, who depends on precision gas mixing and blending to maintain synthetic air environments for research, sought out Sierra to help streamline and improve their processes and cut costs. Sierra engineers identified current system weak points and recommended the new Sierra ...
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Segflo Recirculating Biotower - Auberge du Portage, QC, Canada
Customer: Auberge du Portage, QC, Canada Beautifully situated on the shores of the St. Lawrence River in the quaint village of Notre-Dame-du-Portage, the Auberge du Portage was built in 1903. This Victorian style seasonal home was converted into an Inn in 1930, and enjoys a year-to-year loyal clientele from Quebec City and throughout eastern Canada and the United States. Today, the hotel ...
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