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VK494 - Residential Concealed Glass Bulb Pendent Sprinkler (K4.9)

VK494 - Residential Concealed Glass Bulb Pendent Sprinkler (K4.9)

The Freedom® Model VK494 residential flat plate concealed pendent sprinkler is available in 155°F (68°C) and 200°F (93°C) temperature ratings.  By leveraging new "ultra fast" glass bulb technology, the new VK494 is UL Listed at the same flow rates and pressure requirements for both temperature ratings and at all areas of coverage, including the minimum UL Listed flow rate for 16 x 16 ft (4,9 x 4,9 m), 18 x 18 ft (5,5 x 5,5 m), and 20 x 20 ft (6,1 x 6,1) coverage areas.  As a result, the ordinary and intermediate temperature rated models can be used interchangeably, providing greater installation flexibility and maximum performance, without having to sacrifice aesthetics.

Technical Details

K Factor: 

4.9 (71)





Part Number: 


VK Number: 


Additional Information: 

NOTICE: The product details indicated below are for general reference only and may vary based on the specific product approval and/or application. Always verify product details with the technical data sheet and consult with the Authority Having Jurisdiction (AHJ).

Max Pressure: 

175 psi (12 bar)

Response Type: 

Fast (Residential)

Occupancy Type: 


Thread Size: 

1/2" NPT (15 mm BSP)

Min Spacing: 

8 ft (2,4 m)

Max Spacing: 

20 x 20 ft (6,1 x 6,1 m)