Sprinkler Fire System Dry Pipe Pre action specially designed for facilities with high-value assets, sensitive equipment, or environments that demand preventive fire protection with zero tolerance for false discharges.
The dry pipe pre-action sprinkler system is engineered for areas where accidental activation of sprinklers could cause extensive damage. Common applications include data centers, museums, archives, medical facilities, laboratories, and high-end commercial or industrial buildings.
How the Dry Pipe Pre-Action Sprinkler System Works
In a dry pipe sprinkler system, the piping above the pre-action valve remains free of water, filled only with compressed air or nitrogen. This setup prevents unwanted water discharge in the protected area unless a real fire is detected.

To activate the system:
- A fire detection system (smoke or heat detectors) senses the fire.
- The detection system triggers the pre-action valve, allowing water to flow into the previously dry piping.
- Only when a sprinkler nozzle is heat-activated (typically by a burst of a heat-sensitive glass bulb or vial) will water be released directly at the source of the fire.
This dual verification ensures maximum fire protection with minimum risk of accidental water damage.
Types of Pre-Action Sprinkler Systems
We designs and installs both single and double interlock pre-action systems, depending on the specific fire risk and redundancy requirements:
- Single Interlock Pre-Action System: Requires activation by the fire detection system only.
- Double Interlock Pre-Action System: Requires activation by both fire detection and sprinkler nozzle operation, enhancing reliability and minimizing false activation risks.
These configurations are ideal for mission-critical environments, where even minor water discharge can cause operational or financial disruption.
Components and Installation Details
Each Sprinkler Fire System Dry Pipe Pre action consists of a hydraulic piping network built from black or galvanized carbon steel, with CL10 BSP threaded connections. The system includes:

- Pre-action valve assembly
- Fire detection and alarm interface (SDAI)
- Sprinkler nozzles
- Flow switches for monitoring
- Connection to water reservoirs and pump houses
- Alarm signaling at the fire control panel
We ensures strategic placement of sprinkler heads to guarantee even coverage and rapid fire control across vertical and horizontal structures.
Applications of Dry Pipe Pre-Action Fire Systems
Sprinkler fire System – Flooded Pipe:

These fire suppression systems are suitable for:
- Commercial buildings
- Industrial plants
- Logistics centers and warehouses
- Data centers and server rooms
- Shopping malls and retail outlets
- Cinemas, hospitals, and cultural institutions
Due to its automatic operation and fail-safe design, the pre-action system minimizes operational downtime and maximizes asset protection.
Compliance and Certifications
All sprinkler systems by Rightway International are fully compliant with:
- NFPA 13 – Standard for the Installation of Sprinkler Systems
- ABNT NBR fire safety standards
- Technical instructions from the Fire Department
- FM Global Insurance requirements
The systems are designed, tested, and certified to meet the most rigorous fire safety regulations and insurance criteria.
Benefits of Pre-Action Sprinkler Fire Systems
- Prevent accidental discharge with double verification
- Protect sensitive and high-value areas without water exposure risk
- Comply with global and local fire codes
- Integrated with electronic fire detection systems
- Rapid and automatic response to fire outbreaks
- Minimize business interruptions and asset damage
- 24/7 monitored system for safety and compliance
Why Choose Rightway International:
With deep expertise in fire suppression engineering, we offers tailor-made sprinkler fire solutions for every building type and operational need. From design to installation and compliance, SMH provides end-to-end service that guarantees safety, reliability, and long-term performance.