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Inlet and Exit Insensitivity: The Phoenix Venturi Valve Advantage

Phoenix Controls PAINTS Video Series Inlet/Exit Insensitivity Venturi Valves Insight Partners

In this blog post, we explore the groundbreaking performance of Phoenix Controls' Venturi valves, revolutionizing airflow management in critical environments. This is the next installment into their paint series, and it promises to shed light on how innovative design can overcome traditional HVAC challenges.


The Challenge of Typical Duct Layouts


In typical duct layouts, designers and installers often encounter numerous obstacles within the room or duct that must be navigated around. According to the Duct Design Fundamentals chapter in the 2021 ASHRAE Handbook, one important guideline is the straight duct run standard for flow measuring devices. This standard requires a minimum straight duct run before any flow sensor to avoid unstable readings.


ASHRAE introduced this standard because curves and angles in the duct create turbulent airflow, making it difficult for flow measuring devices, such as Variable Air Volume (VAV) boxes, to provide stable sensor readings. Unstable sensor readings result in inaccurate flow control, which can compromise the system's performance.


The Phoenix Venturi Valve: A Game Changer


In contrast to traditional flow measuring devices, the Phoenix Venturi valve stands out due to its mechanically pressure-independent design. Unlike other devices that rely on flow sensors, the Venturi valve uses a cone and spring assembly to compensate for any fluctuations in duct pressure caused by changes in duct direction. This innovative design makes the requirement for long straight duct runs unnecessary.


Unaffected by Inlet and Exit Conditions


One of the most significant advantages of the Phoenix Venturi valve is its complete insensitivity to inlet and exit duct conditions. Duct design at the entrance and exit of the valve can be in any orientation, with any number of elbows, transitions, or obstructions. Regardless of how complex the duct layout is, the self-balancing nature of the Venturi valve ensures stable and accurate airflow control.


While straight duct runs are critical for the performance of flow measuring devices, they pose significant challenges in duct design, layout, and installation. However, Phoenix Controls' Venturi valves eliminate the need for these complex designs. They do not use sensors impacted by turbulent air and can automatically respond to variations in the ductwork.


Design Flexibility and Efficiency


The benefits of the Phoenix Venturi valve extend beyond its insensitivity to duct conditions. Its design flexibility improves overall efficiency by reducing the length of ductwork required. This allows the Venturi valve to be used in a variety of applications, including laboratories, healthcare spaces, and even more confined areas like modular cleanrooms.


By simplifying the design and installation process, the Phoenix Venturi valve helps designers and installers complete their projects faster, saving both time and money with fewer materials and more flexible design options.


To learn more about how Phoenix Controls' Venturi valves revolutionize airflow management, watch the informative video below.



Learn More About Phoenix Controls


For more information on the benefits of Phoenix Controls, contact Insight Partners today!


For more information, please visit Phoenix Controls.


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