VK478 K5.6 Quick Response Flush Pendent Sprinkler

The Viking VK478 K5.6 Quick Response Flush Pendent Sprinkler is engineered for fire protection specialists who require a discreet, low-profile component for concealed pipe installations. It installs directly into wet, dry, pre-action, and deluge fire suppression assemblies, delivering reliable fire detection and suppression where visual ceiling integration is required.

This sprinkler complies strictly with NFPA 13 standards, utilizing a fast-acting thermal element that accelerates hazard mitigation and supports critical occupant evacuation timelines. The two-piece assembly allows trade contractors to perform pre-installation testing and secure verifications without removing ceiling panels, while the removable ceiling ring enables routine inspections without deactivating the active fire protection system.

• Flush Pendent Design: Maintains a smooth, low-visibility ceiling profile that preserves interior aesthetics without sacrificing safety performance.
• Durable Construction: Manufactured from premium metal alloys featuring corrosion-resistant finishes to extend operational service life in harsh environments.
• Quick Response Element: Incorporates a fast-acting thermal trigger compliant with NFPA 13 for rapid activation during fire events.
• Vertical Adjustment: Provides up to 5/8" (16 mm) of height adjustability for precise alignment across varying ceiling thicknesses and finishes.
• Serviceable Assembly: Features a removable ceiling ring and two-piece design to simplify ongoing maintenance, testing, and inspection workflows.

Contractors must verify all local Authority Having Jurisdiction (AHJ) requirements and consult the manufacturer's technical data sheets prior to beginning installation or system commissioning.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)