Reliable™ RA5422 Quick Response (QR) Upright Sprinkler | 8.0K | Brass | 165°F | Part No. KFR80U1B
The Reliable™ KFR80 Upright fire sprinkler (SIN RA5422) is a quick response, standard spray sprinkler designed for dependable fire protection in approved light and ordinary hazard applications. Part number KFR80U1B pairs a nominal 8.0 K-factor (115 metric) with a 165°F (74°C) temperature-rated fusible link operating element and a brass finish, making it a strong option for exposed installations where a classic metallic appearance is preferred and corrosive exposure is minimal.
When exposed to sufficient heat, the fusible link operates at its rated temperature, releasing the seal so water discharges through the upright body and strikes the deflector to form a uniform standard spray pattern intended to help control fire growth. The sprinkler installs using a 3/4" NPT connection (ISO 7-1 R3/4 optional) and is intended for use in wet-pipe systems when installed, inspected, and maintained in accordance with applicable codes, NFPA standards, and the authority having jurisdiction.
Listings and approvals are provided per the manufacturer’s published literature and commonly include cULus listing and FM approval, with additional regional approvals available depending on configuration and jurisdiction. This sprinkler series is offered in multiple finishes and temperature ratings, including brass, bronze, chrome plated, and white polyester, with temperature options that include 165°F and 212°F.
For best results, install using the manufacturer-recommended sprinkler wrench and avoid over-tightening, impact, or contamination of the operating element. Do not install any sprinkler that appears damaged or has been field-painted, and maintain the system in accordance with NFPA 25 and the authority having jurisdiction.
