Defender DPSS Pneumatic Kitchen Suppression System – Certified High-Capacity Fire Suppression for Commercial Kitchens

The Defender DPSS Pneumatic Kitchen Suppression System is the world’s first and only certified high-capacity pneumatic kitchen fire suppression system, engineered for precision performance and superior extinguishing efficiency. Designed with advanced non-clogging nozzles and a simplified single-type piping system, the DPSS offers wider coverage, faster activation, and cost-effective installation. Ideal for small to large kitchen hoods, this system can be scaled up to 32 flow points using additional manifolds. Its compact design, minimal component count, and maintenance-friendly features make it an ideal choice for high-demand commercial kitchen environments.

Product Features

Certified High-Capacity Pneumatic Design

The Defender DPSS is the only globally certified pneumatic kitchen hood suppression system, providing unmatched reliability and effectiveness with scalable flow capacities.

Performance-Enhanced, Non-Clogging Nozzles

Equipped with specially engineered nozzles that deliver full cone coverage at 30°, 60°, and 90° angles, the system ensures maximum extinguishing range without clogging—even in grease-heavy environments.

Low-Cost, High-Efficiency System

The system operates with a small-capacity cylinder, fewer nozzles, and a minimal amount of piping, reducing total installation and maintenance costs without compromising safety.

Scalable Multi-System Integration

Multiple DPSS systems can be linked via manifolds to increase flow point capacity up to 32 points, making it suitable for large-scale or multi-hood kitchen configurations.

Precision Heat Detection

Includes pneumatic heat detection tubing with highly responsive detection between 120°C and 130°C, ensuring rapid system activation in the event of a fire.

Manual and Automatic Activation

Standard dual-mode activation allows for automatic suppression via heat-sensitive tube rupture and manual discharge through a pneumatic push-button station.

Optional Pressure Monitoring and Electrical Integration

An optional pressure transmitter allows real-time monitoring of system status and can send an electrical signal upon activation to shut off gas lines, ventilation, or other connected systems.

Easy Installation and Maintenance

With single-type piping, fewer components, and original spare parts available at low cost, the system is quick to install and simple to maintain, reducing downtime and service expenses.

Universal Kitchen Hood Compatibility

The Defender DPSS is suitable for all types of commercial kitchen hoods, from compact food trucks to large-scale restaurant exhaust systems.

Product Specifications

• Cylinder Capacity: 6 liters
• Operating Pressure: 12 bar (low-pressure system)
• Nozzle Types:
  • A Nozzle (1 piece)
  • F Nozzle (1 piece)
  • R Nozzle (1 piece)
  • Spray angles: 30°, 60°, and 90° full cone
• Activation Methods: Automatic and manual (standard)
• Detection: Pneumatic tube (6×1 mm) – 10 meters included
• Heat Detection Range: 120°C to 130°C
• System Flow Capacity: 4 flow standard; expandable to 8, 16, or 32 via manifold
• Activation Valve: Pneumatic valve (1 piece)
• Remote Activation: Pneumatic manual push-button (1 piece)
• Mounting: Wall mount bracket (1 piece)
• Discharge Components:
  • Wet chemical-filled cylinder
  • Discharge hose (1 piece)
• Monitoring: Optional pressure transmitter for condition monitoring and electrical signal output
• Installation: Single-type piping layout
• Maintenance: Easy access to original spare parts and service-friendly design
• Application: Compatible with all commercial kitchen hood systems