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VK3521 - Quick Response Pendent Sprinkler (K8.0)

VK3521

Viking is a proud world leader in the design and manufacturing of life-saving fire sprinklers. The VK3521 Quick Response Pendent Sprinkler is just one of thousands of industry-leading sprinklers available to customers! 

The VK3521 is a small thermosensitive glass bulb spray sprinkler available with various finishes and temperature ratings to meet design requirements. The special Polyester and Electroless Nickel PTFE (ENT) coatings can be used in decorative applications where colors are desired. In addition, these coatings have been investigated for installation in corrosive environments and are Listed and Approved as indicated in the Approval Chart.

Sift through virtually every sprinkler in a flash with the revolutionary Sprinkler Selector(opens in a new window)! Select various criteria, such as K-factor, occupancy type, orientation, temperature and more, to get the part number you need. Test it out today and streamline your projects! 

 

InstaSeal Compatible Icon - Small

The VK3521 is compatible with revolutionary InstaSeal® technology(opens in a new window) through the addition of new Torque-Assist caps. Look for the compatibility icon to ensure the correct sprinklers are being ordered for a job requiring InstaSeal technology.

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Technical Details

Manufacturer:
Viking
Page:
F_111320
VK Number:
VK3521
K Factor:
8.0 (115)
Part Number(s):
23878
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:
Quick
Occupancy Type:
Light Hazard
Ordinary Hazard
Thread Size:
3/4" NPT (20 mm BSP)
Min Spacing:
Per Standards / Listings
Max Spacing:
Per Standards / Listings
Orientation:
Pendent
Element Type:
Glass Bulb
California Proposition 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov.