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QRFS Team

  1. #357 – A Guide to Mechanical Tees for Fire Sprinkler Systems

    #357 – A Guide to Mechanical Tees for Fire Sprinkler Systems
    Mechanical tees make adding branch lines to fire sprinkler systems easy. Learn how mechanical tees work and how to install them.
  2. #356 – Sprinkler System Drain Caps: Why Do You Need Them?

    #356 – Sprinkler System Drain Caps: Why Do You Need Them?
    Grooved drain caps make it simple to flush water from fire protection systems thoroughly, and also serve as transitional fittings. Learn more.
  3. #355 – When and How to Contact the Authority Having Jurisdiction

    #355 – When and How to Contact the Authority Having Jurisdiction
    Learn when to contact your authority having jurisdiction—including for building permits, impairments, licenses, and other technical questions.
  4. #354 – Recessed vs. Concealed Sprinkler Heads: What's The Difference?

    #354 – Recessed vs. Concealed Sprinkler Heads: What's The Difference?
    Recessed sprinklers stay in sight. Cover plates hide concealed sprinklers. But learn why there's more to these types sprinklers than meets the eye.
  5. #353 – Victaulic Sprinkler Heads: A Guide to Different Models

    #353 – Victaulic Sprinkler Heads: A Guide to Different Models
    Choosing fire sprinkler heads shouldn’t be hard. Learn about Victaulic sprinkler heads, including technical specs and global approvals.
  6. #352 – The Essential Guide to Tyco Sprinkler Heads

    #352 – The Essential Guide to Tyco Sprinkler Heads
    Choosing fire sprinklers shouldn’t be difficult. Learn about the broad selection of Tyco sprinkler heads for any application.
  7. #351 – A Guide to Viking Fire Sprinkler Heads

    #351 – A Guide to Viking Fire Sprinkler Heads
    Viking fire sprinkler heads fill many roles. QRFS outlines the features of 3 lines of Viking’s commercial fire sprinkler heads—Model M, XT1, and Mirage.
  8. #343 – How to Turn Off a Sprinkler Head: Control Valves vs. Shutgun

    #343 – How to Turn Off a Sprinkler Head: Control Valves vs. Shutgun
    Shutgun tools turn off activated fire sprinklers fast—and without impairing the system Whether it’s because of flying objects, coat hangers, careless construction workers, errant forklifts, or vandalism, fire sprinklers sometimes activate when there’s no fire. According to the National Fire Protection Association (NFPA), fire departments responded to about 33,600 accidental fire sprinkler activations in 2014. Depending on the type, fire...
  9. #342 – Backflow Preventer vs. Check Valve: What’s the Difference?

    #342 – Backflow Preventer vs. Check Valve: What’s the Difference?
    Backflow preventers offer the best protection against contamination of city water supplies A check valve provides a basic form of backflow prevention, preventing water from flowing in the wrong direction. National Fire Protection Association (NFPA) model codes and standards require them in various places on fire protection systems, and check valves are essential components of backflow preventers. But they are...
  10. #341 — Tools for Sprinkler System Backflow Valve Repair and Maintenance

    #341 — Tools for Sprinkler System Backflow Valve Repair and Maintenance
    Check Key tools make it easy and safe to service check valves in backflow preventers Maintaining backflow preventers is vital to ensuring that harmful contaminants from building systems don’t pollute city water supplies. But without the proper tools, attempting sprinkler system backflow valve repair or maintenance can make the situation worse—damaging the check valves you’re trying to remove, as well...

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