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VK609 - Microfast® EC/QREC Fusible Element Horizontal SidewallSprinkler (K5.6)

VK609 - Microfast® EC/QREC Fusible Element Horizontal SidewallSprinkler (K5.6)
The Viking Microfast® EC/QREC Fusible Element Horizontal Sidewall Sprinkler VK609 is a small thermosensitive solder link spray sprinkler available with various finishes and temperature ratings to meet design requirements. The VK609 has both standard response and quick response listings. The fusible operating element and special deflector characteristics meet the challenges of quick response extended coverage standards. The special Polyester and ENT coatings can be used in decorative applications where colors are desired. The Electroless Nickel PTFE (ENT) coating has been investigated for installation in corrosive environments and is listed and approved as indicated in the Approval Chart(s).

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: 

Per Standards / Listings

Max Spacing: 

16 x 18 ft (4,9 x 5,5 m)