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  • Fire Sprinklers
    • Cover Plates
      • Cover Plate Finder
      • Flat
      • Domed
      • Viking Cover Plates
      • Tyco Cover Plates
      • Reliable Cover Plates
      • Victaulic Cover Plates
      • Senju Cover Plates
      • Cleanroom
    • Escutcheons
      • Escutcheon Finder
      • Recessed
      • Adjustable (401)
      • Split Ring (Retrofit)
      • One Piece
      • Institutional
      • Viking Escutcheons
      • Tyco Escutcheons
      • Reliable Escutcheons
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      • Vaulted Ceiling
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    • Sprinkler Heads
      • Sprinkler Finder
      • Uprights
      • Pendents
      • Concealed Pendents
      • 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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      • Paint Covers
      • Standard Head Guards
      • Heavy Duty Head Guards
      • Water Shields and Baffles
    • Shut off Tools
      • Shutgun
    • System Components
      • 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
    • Wall Plates
      • Plastic
      • Metal
      • Galvanized
      • Rod Buttons
    • Installation & Cutting
      • Pilot Clamps
      • Hole Saw Blades
      • Sealants and Greases
      • Boltbreakers
      • Tru Drill
      • Paint Markers
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      • Swivel Rings
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      • Decals and Stickers
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  • Test & Monitor
    • 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
    • Alarm Testing
      • Battery Testing
      • Duct Detector Testing
      • Sound & Voice Testing
    • Other Detector Testing
      • Heat Detector Test Kits
      • Heat Detector Testers
      • Universal Detector Test Kits
      • Detector Testing Equipment & Accessories
      • Removal and Cleaning
      • Batteries and Chargers
      • Access Poles
    • Gauges
    • Flow Testing
      • 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
    • Identification Plates
      • Round ID Plates
      • Square ID Plates
      • Auto Spkr ID Plates
      • Standpipe ID Plates
      • Combination ID Plates
    • Residential
  • Valves
    • Butterfly Valves
      • Grooved Butterfly Valves
      • Threaded Butterfly Valves
      • Wafer Butterfly Valves
    • OS&Y Valves
    • Other Control Valves
      • 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
    • Hose Valves
    • Valve Wrenches
      • Post Indicator Valve Wrench
      • Valve Wheel Wrenches
    • Valve Trim Kits
  • Fire Hose & Hydrants
    • Hose Caps
      • Aluminum Cap and Chain
      • Plastic Cap and Chain
      • Brass Cap and Chain
    • Hose Valves
    • Wrenches
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      • Covers
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Featured Articles

Ball drip valve hydrostatic test

Why Ball Drip Valves Don’t Totally Seal During Hydrostatic Tests

March 27, 2024

Some water leaks out of the ball drip valve under an FDC while doing a hydrostatic test. Is this normal? Learn why it is and what to do.

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How to install head guards

How to Install and Replace Fire Sprinkler Head Guards

March 14, 2024

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

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Fire protection vs life safety

Fire Protection vs Life Safety: What’s the Difference?

February 28, 2024

The terms fire protection and life safety overlap but are distinct. Learn about this close relationship and the differences.

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How to measure dry sprinklers

Dry Sprinkler Heads: How to Determine & Measure Barrel Length

February 14, 2024

Dry sprinkler heads prevent freeze-ups in wet and dry systems, but you must get the barrel length right. Learn how to measure to order them properly.

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Wall hydrant vs FDC

Wall Hydrants vs Fire Department Connections: What’s the Difference?

January 31, 2024

Wall hydrants look similar to FDCs but flow water the other way. Learn how each works, when they’re needed, the maintenance requirements, and more.

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Spare fire sprinklers cabinet and list

Why You Need a List of Spare Fire Sprinklers & What Should Be on It!

January 17, 2024

NFPA requires keeping spare fire sprinklers and an accurate list of them on the premises. Read why and what should be on the list!

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Carbon monoxide detector testing

Carbon Monoxide Detector Testing & Placement: Code & Procedures

January 3, 2024

Carbon monoxide can kill, and CO detectors save lives. Learn where carbon monoxide detectors and alarms are required and when and how to test them.

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Cleaning fire sprinklers

Cleaning Fire Sprinklers Without Using the SprinklerVac

December 20, 2023

A popular touchless cleaning tool is off the market—so how do you clean fire sprinklers while staying NFPA-compliant? Review the options in this blog.

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What are UL standards for fire protection

What Are UL Standards for Fire Protection?

December 6, 2023

UL standards help ensure safe and reliable fire protection equipment. Learn about the process and documents, focusing on UL 199 and fire sprinklers.

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Missing FDC caps or plugs

How to Replace an FDC Cap or FDC Plug

November 22, 2023

Fire department connections must remain covered to protect the system’s pipe and water supply. Here’s how to replace FDC plugs and caps.

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How to replace a fire sprinkler cover plate

How to Replace a Fire Sprinkler Cover Plate

November 8, 2023

Learn about how to remove and install concealed fire sprinkler cover plates—and why—with this step-by-step guide.

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Recessed fire sprinkler escutcheon

How to Replace a Recessed Fire Sprinkler Escutcheon

October 25, 2023

Replacing recessed fire sprinkler escutcheons can be easy or complex. QRFS reviews how to install skirts or the whole escutcheon, both listed and split-ring models.

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Reliable fire sprinkler bulletin

How to Read a Reliable Fire Sprinkler Bulletin | Data Sheet

October 11, 2023

Learn how to use Reliable fire sprinkler data sheets (“Bulletins”) to identify and purchase the correct sprinklers and accessories for your fire protection system.

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Avoiding uncertified fire sprinklers on Amazon

Buying Fire Sprinklers on Amazon: Avoid Noncertified Products & Risks

September 27, 2023

Amazon still sells some unlisted, non-compliant fire sprinklers. Learn why these are risky and how to avoid questionable products.

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Senju data sheet

How to Read a Senju Sprinkler Data Sheet

September 13, 2023

Learn how to use Senju fire sprinkler data sheets to identify the correct sprinklers, escutcheons, cover plates, and other parts for your fire protection system.

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How to find a fire sprinkler identification number (SIN)

How to Find a Fire Sprinkler SIN (Sprinkler Identification Number)

August 30, 2023

A fire sprinkler identification number (SIN) tells you almost everything needed about a sprinkler and what to buy. Here’s how to spot it.

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Victaulic sprinkler data sheet

How to Read a Victaulic Sprinkler Data Sheet

August 17, 2023

Fire sprinkler “cut sheets” can seem confusing—at first. Here’s a guide to reading Victaulic sprinkler data sheets to find the right specs, sprinklers, and other parts.

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Tyco LFII cover plate

Tyco LFII Sprinkler Changes & When You Need “Long-Neck” Covers

August 2, 2023

Tyco has updated some of its LFII sprinklers along with the cover plates that fit some of them. Here’s what’s changed and what you need to buy.

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