Density/area curves were a major feature of NFPA 13’s fire sprinkler hydraulic calculations—until the 2022 and 2025 editions. Here’s why they were removed and what replaced them.
Fire sprinklers are incredibly reliable, but some home fire sprinkler maintenance is needed. Here are the best practices and what could go wrong without following them.
Window sprinklers play a unique role in fire protection, enabling glass to become part of fire-rated barriers. Learn their purpose and rules.
A universal fire sprinkler head wrench seems like a great idea, but NFPA mandates using sprinkler-specific wrenches. Learn why and when this tool might still have a role in your toolbox or sprinkler cabinet.
Fire protection standards evolve every three years, and NFPA 13 2025 has some big changes. Learn about updates on protecting buildings with sloped and high ceilings.
The fire sprinkler industry is constantly evolving. Learn about some major updates in the NFPA 13 2025 edition, including new rules for dry and preaction systems and supplemental sprinklers.
Fire sprinkler whips, also called flexible drops, provide seismic protection advantages and save installers time and effort. Are they right for your project?
Fire sprinkler SINs are very useful identifiers, but they don’t tell you everything. Here’s how to read and use Senju Sprinkler part numbers.
Learn about how to contact us, submit returns, reasons for returns, and tracking the status of a return of fire protection equipment purchased from QRFS.
Some residential sprinkler systems require lead-free fire sprinklers and other parts. Learn more about the laws that restrict lead in drinking water and when they apply to fire sprinklers.
