June 25, 2019
QRFS shares tips for avoiding fire sprinkler accidents and system leaks—and reveals the easiest methods for stopping them once they happen.
October 6, 2020
Learn when to use indicating valves on fire protection systems and how NFPA standards governing these devices have changed.
January 1, 2019
Fire sprinklers come in various orientations and types, and each sprinkler is designed to meet a specific safety, performance, and aesthetic need. Read this ultimate guide to how fire sprinklers work and the wide range of models that are available, including pendent, sidewall, recessed, upright, and concealed sprinklers.
September 4, 2018
Fire alarm control panels can interface with hundreds of life-saving devices simultaneously. QRFS looks at how fire code and the features of today’s fire panels streamline evacuation and emergency response efforts.
July 4, 2019
Learn how CPVC builds on the benefits of PVC to offer reliable fire protection and easier installation in sprinkler systems.
December 7, 2017
Why would a fire protection system need to be drained? This article discusses four common reasons and details the various types of drains necessary for safely draining a fire sprinkler system. Included is a detailed breakdown of the primary drain valves in a sprinkler system: main drains, auxiliary drains, sectional drains, test drains, and more.
February 26, 2013
In this edition of the Fire Sprinkler System Components series, we discuss a water flow detector, or flow switch. What is it? How does it work? Why is it there?
April 17, 2019
A dependable and properly maintained supply of pressurized air is key to the reliable operation of dry sprinkler systems. QRFS helps you understand NFPA requirements for installing air compressors and air maintenance devices.
November 19, 2025
Iron fittings come in multiple varieties. Should you choose cast iron fittings, ductile iron, or malleable iron? Learn the NFPA rules and pros and cons of each.
November 5, 2025
A sprinkler supervisory switch, whether it’s a flow, tamper, or pressure switch, has specific electrical specs. Learn more about these numbers.
October 22, 2025
Long dry sprinkler barrels can cause a practical reduction in K-factor. But learn why there’s usually still only one sprinkler K-factor number for all barrel lengths.
