Gas Fire Suppression Pressure Relief Vent (Galvanized Steel Sheet)

1. System Overview

The pressure relief vent for gas fire suppression systems is a critical safety component designed to automatically relieve excessive overpressure generated within a protected enclosure during agent discharge, thereby ensuring the safety of the enclosure structure, boundary elements, and personnel.

During the discharge of clean agents such as HFC-227ea, IG-series inert gases, and carbon dioxide (CO₂), the enclosure pressure rises sharply within a very short time. The pressure relief vent releases excess pressure in a rapid and controlled manner, effectively preventing structural damage to walls, doors, windows, ceilings, and other enclosure components.
Such pressure relief provisions are explicitly required by international standards, including NFPA fire protection codes, and are an essential part of gas suppression system design.

2. Key Advantages

1. Rapid Response for Structural Protection
The vent opens immediately when the enclosure pressure reaches the preset activation value, promptly relieving overpressure and protecting the integrity of the protected enclosure.

2. Accurate Pressure Relief, Stable and Reliable
The relief pressure rating can be selected in accordance with system design requirements, ensuring sufficient pressure relief without adversely affecting the required extinguishing agent concentration.

3. Compatible with Multiple Gas Suppression Systems
Suitable for use with HFC-227ea, IG inert gas systems, and CO₂ fire suppression systems.

4. Proven Mechanical Design, Low Maintenance
Utilizes a purely mechanical structure with no external power supply required, ensuring long-term operational stability and minimal maintenance.

5. Compliance with International Standards
Designed to meet international requirements for enclosure pressure relief in gas fire suppression systems, making it suitable for overseas and international projects.

3. How it works

1. Under normal conditions, the pressure relief vent remains closed, maintaining enclosure integrity.

2. When the gas fire suppression system is activated, a large volume of extinguishing agent is discharged into the protected enclosure within a short period, causing a rapid rise in internal pressure.

3. Once the enclosure pressure reaches the preset opening pressure of the relief vent, the vent opens automatically.

4. Excess gas is discharged through the vent, restoring the enclosure pressure to a safe level.

5. After discharge and pressure normalization, the vent automatically resets or remains in a safe condition, depending on its design.

4. Structural Diagram

5、Main Technical Parameters

6. Typical Applications

• Data centers and server rooms

• Telecommunication rooms and control centers

• Electrical distribution rooms and substation control rooms

• Financial institution vaults and records storage rooms

• Ship engine rooms and other special enclosed spaces

• All types of enclosed protected areas utilizing gas fire suppression systems

7. Contact Us

If you are seeking a pressure relief vent for gas fire suppression systems with the following features:

• Rapid response to effectively relieve overpressure during agent discharge

• Accurate pressure relief to protect the structural integrity of the protected enclosure

• Compatibility with multiple clean agent and gas fire suppression systems

• Proven design with evidence of reliable operation and low maintenance

• Compliance with international standards, suitable for overseas projects

We welcome you to contact our fire protection solutions team, who can provide:

• Enclosure pressure relief calculations and system design support

• Product selection guidance, technical consultation, and code compliance documentation

• Project quotations, delivery coordination, and technical services

• Installation guidance, commissioning support, and operational training

We are committed to providing safe, reliable, and internationally compliant supporting solutions for gas fire suppression systems to customers worldwide.