#397 – The VK4621 and VK4921: Meet Viking’s Latest Concealed XT-1 Pendent Sprinklers
November 10, 2021
Viking’s newest concealed pendent sprinklers, the VK4621 & VK4921, can be installed with their caps in place—learn how and other benefits.
November 10, 2021
Viking’s newest concealed pendent sprinklers, the VK4621 & VK4921, can be installed with their caps in place—learn how and other benefits.
October 26, 2021
Viking’s newest concealed fire sprinkler cover plate threads into place Viking launched a new thread-on cover plate for concealed fire sprinklers. These covers are designed … Read more
October 12, 2021
Learn about the fire code requirements for residential board and care occupancies, including senior housing and other facilities.
September 29, 2021
Learn how a working sprinkler system in a senior community stopped a cooking fire in its tracks, saving lives and property.
September 14, 2021
Learn how storage fire sprinklers like CMDA, CMSA, and ESFR models protect challenging warehouse environments from fires.
August 31, 2021
Fire pumps are vital equipment for fire sprinkler systems. Learn how to read a fire pump performance curve and size a fire pump.
August 17, 2021
Dirty fire sprinklers are a common code compliance problem. Learn how and when to clean fire sprinklers to stay safe and pass inspection.
August 3, 2021
Learn what’s unique about standard and quick response sprinklers, along with how residential sprinklers differ from both—even though many people confuse the terms.
July 21, 2021
Nominal size is not *actual* size. If you forget this, you’ll end up with components that don’t match. QRFS explains how IPS and other measurements relate to actual size.
July 6, 2021
Use this checklist to prepare for and prevent house fires. Fire safety depends on planning, prevention, & tools like smoke alarms & fire extinguishers.
June 22, 2021
In part 2 of our series on fire sprinkler spacing for extended coverage sprinklers, QRFS looks at the rules for avoiding obstructions.