In HVAC systems, maintaining ductwork integrity is essential for both performance and safety. One critical component in this effort is the pressure relief door—a specialized device designed to prevent potentially catastrophic damage from excessive pressure buildup. Let's explore this important product in more detail.
What are pressure relief doors?
Pressure relief doors are fail-safe mechanisms for HVAC duct systems, designed to automatically open when internal pressure exceeds a specified threshold. This rapid release of pressure helps protect the system from damage while preserving airflow.
How are pressure relief doors used?
These doors play a crucial role in maintaining safe pressure levels in various environments. They act as a safety net for pressure-related issues such as:
- Unintended closure of control dampers
- Unintended closure of life safety dampers
- Excessive blower RPM
- HVAC system malfunctions
- Malfunctioning pressure control components
Why are pressure relief doors important?
By opening at the right moment, these doors provide essential protection against system failures that can be challenging and expensive to repair. They can prevent costly shutdowns and major repairs—making them invaluable in any system susceptible to pressure fluctuations. For instance, without pressure relief doors, a closed damper could cause duct walls to cave in or rupture, disrupting airflow and damaging equipment.
Where are pressure relief doors used?
Pressure relief doors are important in any duct system that might be exposed to excessive pressure changes, providing a safeguard against unexpected surges. However, they are especially critical in high-stakes environments such as:
- Data centers: Protecting sensitive equipment from overheating or damage.
- Healthcare facilities: Ensuring uninterrupted air circulation.
- Industrial Facilities: Supporting smooth HVAC operation under high-demand conditions.
- Cleanrooms and Laboratories: Maintaining controlled environments to prevent contamination.
By offering a swift response to excessive pressure, pressure relief doors help maintain the integrity and performance of HVAC systems in these critical settings.
How does KEES stand out?
Our offerings include positive and negative pressure doors, with options for rectangular, round, and flat oval ducts to suit any configuration. We provide custom sizing and a range of materials, including durable stainless steel.
Field-adjustable release points allow users to fine-tune pressure release settings based on real-world conditions, providing flexibility that many competitors lack. We also stand out as the only manufacturer offering a view port option for visual inspection of duct systems without opening the door—crucial for maintaining closed systems in sensitive environments.
With a diverse product lineup and extensive experience, including projects for the UNC Women’s Basketball Facility, NASA Research Center, and Nestle Purina, KEES is a trusted partner in maintaining HVAC safety and performance.
To learn more, check out our article: 5 Things to Know About KEES Pressure Relief Doors.