The Viking VK3521 is a precision-engineered fire sprinkler head specifically designed for commercial and industrial fire suppression systems. This quick response (QR) sprinkler offers critical thermal protection for complex facility environments, including high-risk areas such as manufacturing spaces, data centers, warehouse facilities, and critical infrastructure installations.
Engineered with Viking’s advanced thermal sensitivity technology, the VK3521 features a K8.0 discharge coefficient and a 155°F temperature rating, making it optimal for spaces requiring rapid heat detection and immediate fire response. The pendant (PD) style configuration allows for seamless mounting in standard ceiling installations, providing comprehensive coverage and enhanced fire protection strategy.
Key Features
- Quick response (QR) thermal activation with 155°F temperature classification
- K8.0 discharge coefficient for precise water distribution
- Chrome (CH) finish for corrosion resistance and aesthetic integration
- Compatible with standard commercial fire suppression panel systems
- Manufactured to meet rigorous NFPA 13 and UL 199 certification standards
- Precision-engineered for consistent performance in challenging environmental conditions
Specifications
- Listing: FM Approved, cULus Listed
- Temperature Rating: 155°F
- Sprinkler Type: Pendant, Quick Response
- Finish: Chrome Plated
- Applicable Standards: NFPA 13, NFPA 72, UL 199
Professional fire protection contractors will appreciate the VK3521’s reliability in addressable fire alarm systems, particularly in commercial office complexes, industrial manufacturing facilities, data centers, and mission-critical infrastructure environments. The sprinkler’s design ensures consistent thermal performance and seamless integration with contemporary fire suppression technologies.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 1.07 lbs |
|---|---|
| Dimensions | 4 × 2 × 3 in |
| Condition | New |
| Manufacturers | Life Safety |
| Part Type | Replacement Part |
