Sprinklers & Valves (Dry System)
Viking Model F-1 – Single-Interlock Preaction System (Pneumatic Release)
The Model F-1 Single-Interlock Pneumatic Release System uses air pressure as the supervisory method. When air pressure drops (typically due to sprinkler activation), the valve opens and fills the piping with water.
This system does not require an electric releasing panel, making it suitable for areas where electrical power is limited.
Uses air-pressure supervision
No electrical panel required (optional)
Reduces accidental discharge as the valve opens only when a sprinkler activates
Ideal for industrial facilities
Simple components and easy maintenance
UL & FM approved
Type: Single-Interlock Preaction – Pneumatic Release
Valve: F-1 Deluge Type
Supervisory Air Pressure: approx. 20–40 psi
Maximum Working Pressure: 250 psi
Size Range: 2” – 8”
Body Material: Ductile Iron
Industrial facilities
Document storage rooms
High-value warehouses
Electrical areas with limited wiring infrastructure
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