# QRFS \- Thoughts on Fire Blog

> 400 articles and counting to make owning, inspecting, testing, and maintaining a fire protection system easier than ever\.

Generated by Yoast SEO v28.2, this is an llms.txt file, meant for consumption by LLMs.

## Pages
- [Fire Department Connections: A Complete Guide](https://blog.qrfs.com/fire-department-connections-a-complete-guide/)

## Posts
- [A Guide to Open Fire Sprinklers: Purpose, Specs \& Systems](https://blog.qrfs.com/499-a-guide-to-open-fire-sprinklers-purpose-specs-systems/): Open fire sprinklers are the business end of many deluge sprinkler systems\. Learn how they work and their similarities and differences with nozzles\.
- [Wet Pipe Sprinkler System Maintenance Owners May Be Skipping](https://blog.qrfs.com/498-the-wet-pipe-sprinkler-system-maintenance-owners-may-be-skipping/): Not all inspection and maintenance items for wet pipe sprinkler systems are covered by an annual pro service call\. Learn some key tasks owners and managers may overlook\.
- [NFPA 25 2026 Edition: Key Updates \& Additions](https://blog.qrfs.com/497-nfpa-25-2026-edition-key-updates-additions/): NFPA 25 2026 has a variety of new requirements for fire sprinkler system inspection, testing, and maintenance—learn some of the important updates\. 
- [I Need a Dry Sprinkler Escutcheon, but I Can’t Find the Part](https://blog.qrfs.com/p32-i-need-a-dry-sprinkler-escutcheon-but-i-cant-find-the-part/): Finding replacement escutcheons for dry sprinklers is fairly easy but not always straightforward\. Learn how to ID the right part\.
- [A Guide to Spray Nozzles for Fire Protection](https://blog.qrfs.com/496-a-guide-to-spray-nozzles-for-fire-protection/): While a spray nozzle also serves in active fire protection systems, it is not a fire sprinkler\! Learn the differences, the variations, and how nozzles fit into NFPA 15, NFPA 750, and NFPA 13 systems\.

## Topics
- [For Fire Protection Professionals](https://blog.qrfs.com/topic/fire-protection-professionals/)
- [For Property Managers \& Owners](https://blog.qrfs.com/topic/property-managers-owners/)
- [System Essentials \& Parts](https://blog.qrfs.com/topic/system-essentials-parts/)
- [Sprinkler Guides \& Accessories](https://blog.qrfs.com/topic/sprinkler-guides-accessories/)
- [Fire Sprinklers \& Accessories](https://blog.qrfs.com/topic/fire-sprinklers-accessories/)

## Optional
- [Sitemap index](https://blog.qrfs.com/sitemap_index.xml)