Sprinklers & Valves (Dry System)
Viking Model VXD – Single-Interlocked Preaction System (Pneumatic Release)
The Single-Interlocked Preaction System with Pneumatic Release uses air pressure as the supervisory method. The valve opens only when air pressure drops due to sprinkler activation. The piping remains dry, reducing the risk of water damage caused by leaks.
Because it does not require an electric releasing panel, this system is ideal for environments with limited electrical availability.
Pneumatic release – no electrical panel required
Piping remains dry until a sprinkler operates
Reduces accidental discharge
Ideal for industrial and commercial areas
VXD valve provides stable and reliable performance
UL & FM approved
Type: VXD Single-Interlock Preaction – Pneumatic
Supervision: Air Pressure (20–40 psi typical)
Maximum Working Pressure: 250 psi
Valve Material: Ductile Iron
Size Range: 1.5” – 6”
Warehouses & logistics centers
Industrial electrical panel rooms
Storage areas for valuable goods
Factories & facilities with limited electrical infrastructure
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