Central Suction Systems from freeamfva's blog

Central Suction Systems

Central suction system for the connection of all workstations and dust-generating appliances in laboratories of any size. Thanks to an infinitely adjustable vacuum control independent of filter contamination and conduction of the exhaust air to the outdoor area, the system offers a high standard of air purity in the laboratory. The system is tailored perfectly to your laboratory through individual planning and consulting.Get more news about Central Suction,you can vist our website!

Central suction system for the connection of all workstations and dust-generating appliances in laboratories of any size. Thanks to an infinitely adjustable vacuum control independent of filter contamination and conduction of the exhaust air to the outdoor area, the system offers a high standard of air purity in the laboratory. The system is tailored perfectly to your laboratory through individual planning and consulting.

Central suction system for the connection of all workstations and dust-generating appliances in laboratories of any size. Thanks to an infinitely adjustable vacuum control independent of filter contamination and conduction of the exhaust air to the outdoor area, the system offers a high standard of air purity in the laboratory. The system is tailored perfectly to your laboratory through individual planning and consulting.

Ok, so we’ve discussed and demonstrated that the Airwatts published in a product brochure are not a good measurement of performance. Instead, the quality and longevity of a motor should be weighed in your cost evaluation along with any performance claims.

Imagine that a central vacuum motor is much like a jet engine. Turbine propellers are spinning at thousands of RPM’s (revolutions per minute) generating a tremendous amount of Vacuum and producing a huge amount of Airflow. A central vacuum motor operates along the same principle.

airflow-vacuum

While the Airflow measurement indicates how much air the central vacuum motor can move, the Suction measurement tells us the maximum pull the motor is capable of. This is determined by sucking a 2 inch column of water vertically to its maximum height in inches. Hence, the term “Waterlift”.

The performance curve of a central vacuum motor has an “inverse relationship” meaning that when Airflow is at its maximum, Suction is at its weakest - and vice versa.
The term Airwatts was created to determine the ‘sweet spot’ at which Suction and Airflow co-exist at their most efficient orifice along the performance curve. However, like any brochure performance claim, the maximum value falls outside the typical operating orifice of a working central vacuum system.

The same is true for both Suction and Airflow. A central vacuum does not operate at a 2 inch orifice where Airflow is at its greatest. Nor would you be able to vacuum anything at a 0 inch sealed vacuum orifice when suction is greatest.

Like autumn leaves blowing across an empty parking lot, it’s the movement of air (Airflow) which carries dirt away in your central vacuum system. Just like in nature, it’s the difference in atmospheric pressure (Vacuum) that creates both the movement and velocity of air.

velocity-increase

The amount and speed at which air travels (velocity) has a direct impact on your central vacuum’s ability to move debris. In the case of a gentle ocean breeze versus a tornado or a hurricane, this is the difference between drying your laundry and ripping your house off its foundation.