For large projects and long-distance pipeline scenarios, traditional stored-pressure HFC-227ea systems are limited by delivery distance. External-pressure type solves this problem with independent power gas source design.
1. What is External-pressure System?
Extinguishing agent storage and power gas source are separated. HFC-227ea is stored in low-pressure container, with separate high-pressure nitrogen cylinders as power source. During fire, high pressure nitrogen drives agent through long-distance pipelines.
2. Core Advantages
- Long delivery distance: up to 150 meters, suitable for large industrial sites
- Fast fire fighting: stable power pressure, faster and more uniform agent discharge
- Lower cylinder room requirements
- Large system capacity for big projects
3. Typical Applications
- Large data centers, industrial parks
- Subway, tunnel underground projects
- High-rise building high/low zone protection
- Power plants, substations
- Large warehouses and logistics centers
Guangzhou QIYU Fire provides full range of external-pressure HFC-227ea systems. Contact us for detailed parameters and quotation.
