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VK531 - QR ELO Upright Sprinkler (Storage-Density/Area) (K11.2)
The Viking Quick Response Extra-Large Orifice Upright Sprinkler VK531 is a thermosensitive glass bulb spray sprinkler available in several different finishes and temperature ratings to meet design requirements. The extra-large orifice provides greater flows at lower pressures than standard orifice or large orifice sprinklers. This feature allows reduced pipe sizing for hydraulically calculated sprinkler systems, which require high densities of water. Viking Quick Response Extra-Large Orifice Sprinklers may eliminate the need for a fire pump or reduce the size of the pump if it is required.
Availability date:
The Viking Quick Response Extra-Large Orifice Upright Sprinkler VK531 is a thermosensitive glass bulb spray sprinkler available in several different finishes and temperature ratings to meet design requirements. The extra-large orifice provides greater flows at lower pressures than standard orifice or large orifice sprinklers. This feature allows reduced pipe sizing for hydraulically calculated sprinkler systems, which require high densities of water. Viking Quick Response Extra-Large Orifice Sprinklers may eliminate the need for a fire pump or reduce the size of the pump if it is required.
Downloads
TECHNICAL DATA SHEETS
CERTIFICATE
DRAWING
GUIDE
REVIT FILES
Features
- K Factor: 11.2 (USA) / 16.1 (NZ)
- Maximum Spacing: Per Standards / Listings
- Maximum Working Pressure: 175 psi (12 bar)
- Minimum Spacing: Per Standards / Listings
- Model Number: VK531
- Occupancy Type: Light Hazard, Ordinary Hazard, Storage
- Response Type: Quick
- Thread Size: 3/4" NPT (20 mm BSP)
Product Information
The Viking Quick Response Extra-Large Orifice Upright Sprinkler VK531 is a thermosensitive glass bulb spray sprinkler available in several different finishes and temperature ratings to meet design requirements. The extra-large orifice provides greater flows at lower pressures than standard orifice or large orifice sprinklers. This feature allows reduced pipe sizing for hydraulically calculated sprinkler systems, which require high densities of water. Viking Quick Response Extra-Large Orifice Sprinklers may eliminate the need for a fire pump or reduce the size of the pump if it is required.
| ExampleDensity | Std CMDA Spk Spacing | (Q) Flow Rate / Sprinkler | (P) Starting Pressure | Example Water Demand (2,000 ft2 design area) |
|---|---|---|---|---|
| 0.3 gpm/ft2 | 100 ft2 | 30 gpm | 7.2 psi | 600 gpm |
| 0.4 gpm/ft2 | 100 ft2 | 40 gpm | 12.8 psi | 800 gpm |
| 0.5 gpm/ft2 | 100 ft2 | 50 gpm | 19.9 psi | 1,000 gpm |
| 0.6 gpm/ft2 | 100 ft2 | 60 gpm | 28.7 psi | 1,200 gpm |
| 0.7 gpm/ft2 | 100 ft2 | 70 gpm | 39.1 psi | 1,400 gpm |
| 0.8 gpm/ft2 | 100 ft2 | 80 gpm | 51.0 psi | 1,600 gpm |
