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Valves are used to handle a wide variety of functions in controlling the flow of liquids and gases. With so many options available, it’s important to look at all of the factors to ensure you are selecting the correct valve for your application.
Continue reading “5 Factors to Consider When Choosing a Valve”
A semiconductor transistor is a part with specific electronic properties that allow it to serve as a component in microchips and modern electronics like phones, laptops, and more. As these components are small and require precise manufacturing methods, there are facilities dedicated to their manufacture.
These facilities consist of several levels including air handlers and scrubbers for exhaust, HEPA room, fab cleanroom, and subfab areas. The control of differential pressure within the facility is essential for the safety of both equipment and personnel.
The HEPA/ULPA rooms are found in the space above a semiconductor cleanroom. This area has filtration equipment that removes particulates from the outside environment. A HEPA (high efficiency particulate air) filter and/or an ULPA (ultra low particulate air) filter is used to trap small contaminants and prevent them from entering the fab cleanroom area. The fab cleanroom has to be free of particulates, as it is where semiconductor devices such as microscopic transistors are manufactured. Something as small as a molecule from a fragrance can destroy one of these transistors, making proper filtration an essential part of the semiconductor fabrication process. Continue reading “Monitoring Solutions for Semiconductor HEPA/ULPA Rooms”
This June has seen record-breaking wildfires in Canada, with many fires still raging across the provinces and territories. The blaze, which has resulted in many individuals being forced from their homes and is expected to continue throughout the 2023 wildland fire season (canada.ca), has also brought with it thick smoke/smog for Canada’s USA neighbors. Continue reading “Importance of Monitoring IAQ During Wildland Fire Season”
HVAC technicians test, adjust, and balance many different types of indoor environments, from clean rooms and hospitals to schools and offices. Within schools, it’s important that the HVAC system be run thoroughly and efficiently in order to promote learning and health, and to keep expenses down (allowing funds to be channeled into other educational avenues). Proper distribution of air flow can increase comfort, lower energy bills, and maintain a healthy indoor air quality. Continue reading “School HVAC Test & Balance Solutions”
Lift stations are used to transmit wastewater to a treatment facility. In residential areas, lift stations may be located in a central point to a subdivision or community. Lift stations are pits located at points in the wastewater system to collect the wastewater and usually have two submersible pumps. In order to use gravity to move the wastewater along, it must be continually elevated to provide height to generate the flow. Wastewater in the lift station is pumped out to a higher level, from where it can flow on to the next lift station or to the treatment facility. As excavation and trenching for sewer pipes can be costly, using lift stations (and gravity) saves a substantial amount of money. Continue reading “Pump Controller with Level Transmitter Control Pumps in Wastewater Lift Stations”