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VK604 - Microfast® EC/QREC Pendent Sprinkler (K5.6)

The Viking Microfast® EC/QREC Pendent Sprinkler VK604 is a small thermosensitive spray sprinkler available in several different finishes and temperature ratings to meet varying design requirements. These sprinklers have both standard response and quick response listings. The fast response type glass bulb and special deflector combine speed of operation and area of coverage to meet quick response extended coverage standards. The special Polyester coating can be used in decorative applications where colors are desired.  See technical datasheet for details.

Technical Details

K Factor: 

81 metric





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: 


Occupancy Type: 

Light Hazard

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)