Valves Archives

#365 – A Guide to Post Indicator Valve Requirements

August 21, 2024October 6, 2020

Learn when to use indicating valves on fire protection systems and how NFPA standards governing these devices have changed.

#364 – What Is a Globe Valve and When Is It Used?

September 29, 2020

Globe valve vs. gate valve vs. ball valve—which is best for the job? QRFS explains how to pick the right valve for specific applications.

#284 – Guide to Dry Sprinkler Systems, Part 11: Annual Dry Sprinkler Tests

October 30, 2019October 17, 2019

Learn about the annual dry sprinkler tests in NFPA 25, which includes requirements for various sprinkler system components.

Sprinkler check valve installation shotgun valve

#276 – Sprinkler Check Valve Installation and Selection: Shotgun Riser Check Valves

October 1, 2019

With threaded ports for gauges and a drain valve, backflow-preventing sprinkler check valves can expedite the code-compliant installation of system risers. Read on to learn more about the design and installation of “shotgun” risers—and how they compare to common alternatives.

#266 – Fire Sprinkler System Risers, Part 2: Wet-Pipe Components and Assemblies

December 13, 2022September 11, 2019

Get to know your fire sprinkler system risers better with a look at common components and manifolds in wet-pipe sprinkler systems—both commercial and residential.

#257 – Fire Risers, Part 1: Essential Fire Sprinkler Riser Components

December 13, 2022August 27, 2019

Each fire riser serves as a central hub for sprinkler system inspection, testing, and repair. For more on residential and commercial risers, fire sprinkler riser components, and how they’re used in different system types, read on.

#242 – UL Listed and FM Approvals: Which Listings Matter for Fire Protection Under NFPA 13?

May 9, 2023August 5, 2019

Many fire protection items are listed, approved, or certified—but what do they really mean? Learn about UL listings, FM approvals, & other certifications.

#235 – What Size Valve Wheel Wrench Do You Need?

July 25, 2019

For a slip-free grip and maximum leverage, follow QRFS’s guide to sizing valve wheel wrenches that turn handwheel valves safely.

#163 – Angle Valve Compatibility in Fire Protection, Plumbing, and Water-Based Systems

November 22, 2022April 5, 2019

A wide range of standards govern the construction and use of valves—so, can angle valves designed for one purpose be used for another? QRFS looks at angle valves in fire protection, HVAC, plumbing, and beyond, discussing their construction, manufacturing standards, and suitability for various applications.

#155 – Guide to Dry Sprinkler Systems, Part 3: Installation of Components

June 23, 2023March 14, 2019

The additional components required in dry fire sprinkler systems compared to wet systems can make installation more challenging. QRFS helps you understand NFPA 13 requirements for installing dry pipe and check valves, as well as quick-opening and antiflooding devices.