Viking VK638 K8.0 QREC Horizontal Sidewall Fire Sprinkler
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The Viking VK638 K8.0 QREC Horizontal Sidewall Fire Sprinkler is engineered for dependable fire protection in large commercial, industrial, and corridor spaces. It installs directly into standard wet and dry pipe fire suppression systems along walls, mounting up to 12 inches below the ceiling to protect expansive areas with fewer total units.
This quick-response extended coverage (QREC) component satisfies strict commercial life safety parameters, meeting UL, FM, and NFPA requirements for code-compliant system design and implementation.
- High K-Factor 8.0 (115): Delivers extended coverage up to 28 by 14 feet, reducing the total number of sprinklers required for large areas.
- Flow-Shaper Technology: Optimizes fire suppression performance while minimizing flow and pressure requirements to reduce water usage.
- Corrosion-Resistant Brass Construction: Premium brass build stands up to harsh industrial environments for long-term operational reliability.
- Flexible Installation: Compatible with standard wet and dry pipe systems for both new construction and retrofit projects.
- Discrete Profile: Minimalist footprint integrates cleanly into hallways and commercial interiors while maintaining broad area coverage.
| Technical Specification | Details |
|---|---|
| Manufacturer / Brand | Viking |
| Model / Series Number / SIN | VK638 / VK638-D |
| Connection / Thread Size & Type | N/A |
| Pressure Rating (WWP / Max Working Pressure) | N/A |
| K-Factor | 8.0 (115) |
| Temperature Rating / Response Type | Quick Response (QREC) |
| Material / Body Construction | Corrosion-Resistant Brass |
| Agency Listings & Approvals | UL Listed, FM Approved |
| Applicable NFPA Standards | NFPA Compliant |
Contractors must verify all local Authority Having Jurisdiction (AHJ) guidelines and consult official manufacturer technical documentation prior to fire sprinkler installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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