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      • Flat
      • Domed
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      • Escutcheon Finder
      • Recessed
      • Adjustable (401)
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      • Institutional
      • Viking Escutcheons
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      • Reliable Escutcheons
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    • Sprinkler Heads
      • Sprinkler Finder
      • Uprights
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      • Horizontal Sidewalls
      • Concealed Sidewalls
      • Residential
      • Standard Response (SR)
      • Quick Response (QR)
      • ESFR, EC, & Other
      • Institutional
      • Viking Fire Sprinklers
      • Tyco Fire Sprinklers
      • Victaulic Fire Sprinklers
      • Reliable Fire Sprinklers
      • Senju Fire Sprinklers
    • Head Wrenches
      • Standard
      • Concealed
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      • Hybrid and Other
    • Sprinkler Accessories
      • Sprinkler Extensions
      • Installation Tools
      • Trim Rings
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      • Standard Head Guards
      • Heavy Duty Head Guards
      • Water Shields and Baffles
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      • Shutgun
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      • Sprinkler Gauges
      • Flexible Drops
      • Drywall Access Doors
      • Pre-Assembled Risers
      • Cleaning Tools
      • Breakable Locks
  • Pipe
    • CPVC Fittings
      • Caps
      • Couplings
      • Adapters and Reducers
      • Elbows
      • Tees
      • Bushings
      • Pipe
      • Crosses
      • Cement
    • Grooved Fittings
      • Couplings
      • Adapters and Reducers
      • Caps
      • Mechanical Tees
      • Tees
      • Elbows
      • Crosses
      • Coupling Grease
    • Black Iron Fittings
      • Bushings
      • Nipples
      • Square Head Plugs
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      • Plastic
      • Metal
      • Galvanized
      • Rod Buttons
    • Installation & Cutting
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      • Hole Saw Blades
      • Sealants and Greases
      • Boltbreakers
      • Tru Drill
      • Paint Markers
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      • Beam Clamps
      • Swivel Rings
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      • Decals and Stickers
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    • Hydrostatic Test Pumps
    • Smoke Detector Testing
      • Smoke Detector Test Kits
      • Smoke Aerosols and Cartridges
      • Smoke Dispensers
      • Sensitivity Testers
      • Scorpion (Mounted)
    • CO Detector Testing
      • CO Detector Test Kits
      • CO Aerosols and Cartridges
      • CO Dispensers
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      • Battery Testing
      • Duct Detector Testing
      • Sound & Voice Testing
    • Other Detector Testing
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      • Universal Detector Test Kits
      • Detector Testing Equipment & Accessories
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      • Access Poles
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      • Flow Test Kits
      • Pitot Gauge Kits
      • Flow Testing Parts
    • Alarm Bells
      • 24V
      • 120V
      • Alarm Bell Accessories
    • Electronic Supervision
      • Flow Switches
      • Pressure Switches
      • Supervisory Switches
  • FDCs
    • Exposed Bodies
      • Angled
      • Straight
    • Concealed Bodies
      • Angled
      • Straight
    • Caps and Plugs
      • Breakable Caps
      • Plug and Chains
    • Snoots and Swivels
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      • Round ID Plates
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      • Auto Spkr ID Plates
      • Standpipe ID Plates
      • Combination ID Plates
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      • Grooved Butterfly Valves
      • Threaded Butterfly Valves
      • Wafer Butterfly Valves
    • OS&Y Valves
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      • Powerball Valves
      • Gate Valves
    • Shotgun Riser Check Valves
    • Other Check Valves
      • Brass Check Valves
      • In-Line Check Valves
      • Swing Check Valves
    • Angle Valves
    • Testing & Maintenance
      • Pressure Relief Valves
      • Bleeder Valves
      • Three Way Valves
      • Ball Valves
      • Globe Valves
      • Ball Drip Valves
      • Auxiliary Drain Valves
      • Test and Drain Valves
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      • Post Indicator Valve Wrench
      • Valve Wheel Wrenches
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Fire Sprinklers

#464 – What is a Fire Sprinkler Assembly, and Why Is It Important?

April 22, 2025November 6, 2024 by QRFS
Fire sprinkler assembly

NFPA standards and other documents reference the sprinkler assembly and specify which accessories must be part of it. Read this guide!

Categories Fire Sprinklers Tags cover plates, escutcheons, fire sprinkler assembly, fire sprinkler head assembly, fire sprinklers, sprinkler assembly 1 Comment

#463 – How to Understand and Use Victaulic Sprinkler Part Numbers

August 9, 2025October 23, 2024 by QRFS
Victaulic sprinkler part numbers

Fire sprinkler SINs are very useful identifiers, but they don’t tell you everything. Here’s how to read and use Victaulic sprinkler part numbers.

Categories Fire Sprinklers Tags Victaulic sprinklers Leave a comment

#462 – “Flush” vs Flush Sprinkler Escutcheons: What Must Be Listed?

January 24, 2025October 9, 2024 by QRFS
Flush sprinkler escutcheon vs flush sprinkler escutcheon

The term “flush sprinkler escutcheon” can mean two different things in fire protection, and only one needs a listing. Learn to spot the difference!

Categories Fire Sprinklers Tags Fire Sprinkler Escutcheons, sprinkler escutcheons Leave a comment

#461 – How to Understand and Use Tyco Sprinkler Part Numbers

August 9, 2025September 25, 2024 by QRFS
Tyco sprinkler part number

Fire sprinkler ID numbers (SINs) are very useful identifiers, but they don’t tell you everything. Here’s how to read and use Tyco sprinkler part numbers.

Categories Fire Sprinklers Tags Tyco, Tyco sprinkler Leave a comment

#460 – How Can the Same Fire Sprinkler Be Quick *and* Standard Response?

August 9, 2025September 11, 2024 by QRFS
Quick response and standard response fire sprinklers

Some fire sprinklers can be rated quick and standard response despite having the same physically designed thermal sensitivity. Learn why!

Categories Fire Sprinklers Tags response type, thermal sensitivity Leave a comment

#455 – Fusible link sprinkler head vs glass bulb sprinkler: the differences

January 24, 2025July 3, 2024 by Jason Hugo
Fusible link sprinkler head vs glass bulb sprinkler

Fusible link fire sprinkler heads and glass bulb sprinklers are extremely similar, but some considerations exist. Learn the differences and when they matter.

Categories Fire Sprinklers Leave a comment

#454 – Sprinkler Showdown: VK3001 vs TY313 vs V2704 vs RA1425

August 9, 2025June 19, 2024 by Jason Hugo
VK3001 vs TY313 vs V2704 vs RA1425

How can you choose between quick-response, standard coverage, 5.6K upright sprinklers? QRFS referees a showdown between Viking, Tyco, Victaulic, and Reliable.

Categories Fire Sprinklers Tags Sprinkler Showdown, Upright fire sprinklers Leave a comment

#453 – Why You Can’t Install Dry Sprinklers with Mechanical Tees, Elbows & More

January 24, 2025June 6, 2024 by Jason Hugo
Why you can't install dry sprinklers in mechanical tees

Dry sprinklers can only be installed in specific fittings. Here’s a guide to the NFPA and manufacturer rules for appropriate installations.

Categories Fire Sprinklers Tags dry sprinkler fittings, dry sprinklers Leave a comment

#451 – BSPT vs NPT Fire Sprinkler Head Sizes: Know the Difference

January 24, 2025May 8, 2024 by Jason Hugo
bspt vs npt fire sprinklers

BSPT vs NPT standards for tapered pipe threads govern fire sprinkler sizes. Learn about the differences, where each is used, and how to get the right part.

Categories Fire Sprinklers Tags BSPT, BSPT vs NPT fire sprinklers, NPT 2 Comments

#449 – Sprinkler Showdown: VK3021 vs TY323 vs V2708 vs RA1414

August 9, 2025April 10, 2024 by Jason Hugo
VK3021 vs TY323 vs V2708 vs RA1414

How can you choose between quick response pendent 5.6k fire sprinklers? QRFS compares Viking, Tyco, Victaulic, and Reliable models.

Categories Fire Sprinklers Tags fire sprinklers, quick response pendent sprinkler Leave a comment

#447 – How to Install and Replace Fire Sprinkler Head Guards

January 24, 2025March 14, 2024 by Jason Hugo
How to install head guards

Fire sprinkler head guards protect sprinklers from damage—here’s how to replace them or install new ones with different attachment styles.

Categories Fire Sprinklers Tags fire sprinkler head guards, sprinkler cages, sprinkler guards Leave a comment
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