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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
      • Victaulic Escutcheons
      • Senju Escutcheons
      • Vaulted Ceiling
      • Extension Tubes
    • 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
      • Recessed
      • Cabinet/Plastic
      • Hybrid and Other
    • Sprinkler Accessories
      • Sprinkler Extensions
      • Installation Tools
      • Trim Rings
      • Spare Head Cabinets
    • Guards and Shields
      • 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
    • Hangers and Fasteners
      • Riser Clamps
      • CPVC Hangers
      • Fasteners and Drivers
      • Beam Clamps
      • Swivel Rings
  • Signs & Decals
    • Sprinkler Signs
      • Aluminum Signs
      • Decals and Stickers
    • FDC Signs
    • Fire Extinguisher Signs
    • Sign Chain
  • 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
    • Hose Nozzles
    • Mounting and Storage
      • Covers
      • Pin Racks
      • Reels
    • Hose
      • Double Jacket Hose
      • Rack and Reel Hose
      • Single Jacket Hose
    • Hose Adapters and Reducers
  • Fire Extinguishers
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Featured Articles

Storage sprinklers

The Basics of CMDA, CMSA, In-Rack, and ESFR Storage Sprinklers

September 14, 2021

Learn how storage fire sprinklers like CMDA, CMSA, and ESFR models protect challenging warehouse environments from fires.

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Fire pump

How To Size a Fire Pump and the Basics of Performance Curves

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.

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Dirty fire sprinkler

How to Tell if Your Fire Sprinklers Need Cleaning or Replacement

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.

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QR vs SR Viking sprinklers

The Difference Between Standard, Residential & Quick Response Sprinklers

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.

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How to Select a Pipe Cover Plate: Understanding IPS Dimensions

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.

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home fire safety plan

A Home Fire Safety Checklist and Planning Guide

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.

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Extended coverage sprinkler spacing obstructions

Extended Coverage Sprinkler Spacing Part 2: Obstructions

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.

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Tamper switches and waterflow switches

What’s the Difference Between a Tamper Switch and a Supervisory Switch?

June 8, 2021

QRFS explains the difference between tamper switches and supervisory switches, plus other types of fire sprinkler system sensors.

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Installing threaded rod and pipe

DeWALT Hangermate Fastener Tools Make Installing Threaded Rod Easy

May 25, 2021

Fastener tools like DeWALT HangerMate threaded rod anchors help you hang pipe or other equipment by drilling directly into structural members.

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Coast Guard rules on fire extinguishers

The Coast Guard Rules for Boat Fire Extinguishers

May 11, 2021

What is a Coast Guard-approved fire extinguisher? How many boat fire extinguishers do you need? QRFS explains the 2016 rule change.

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Fire hose rack and reel

Maintaining or Replacing Fire Hose Reels and Racks

April 27, 2021

Fire hose reels and racks can be life-saving equipment in the right hands. Learn when code requires fire hose cabinets and when they can be removed.

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Sprinkler cover installation tools

Install Sprinkler Head Cover Plates with the Proper Tools

April 13, 2021

Learn how fire sprinkler head cover plate installation tools make it easy to remove sprinkler caps and install cover plates—safely from the floor.

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Fire protection and server room aisle containment

Aisle Containment May Compromise Server Room Fire Protection Systems

March 30, 2021

Server rooms need strong cooling and fire protection systems. QRFS examines aisle containment systems and how they can impede fire protection.

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Sprinkler illustration

Sprinkler Head Spacing: Extended Coverage Fire Sprinklers, Part 1

March 16, 2021

Learn the basics for the maximum and minimum distances for extended coverage fire sprinklers according to NFPA 13.

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Sprinkler in ceiling

Fire Sprinkler Retrofits: An End-User’s Guide to Understanding Systems

March 2, 2021

Learn about the NFPA standards governing fire sprinkler retrofits and installations and how to read these documents, ID system components, and more.

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Residential fire sprinkler

The Benefits, Costs & Considerations of a Residential Fire Sprinkler System Retrofit

February 16, 2021

Learn why homeowners retrofit or install fire sprinklers and why fire safety isn’t the only reason—or the complete, detailed answer.

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Canada fire codes

U.S. vs. Canada Codes: What’s Different and When Does NFPA Apply?

January 19, 2021

Fire protection, building, and life safety codes are unique in Canada. Read a rundown of how NFPA & Canada codes & standards interact—and how these rules are different from the U.S.

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How to select residential sprinkler heads

How to Select Residential Sprinkler Heads

January 6, 2021

Building a home fire sprinkler system? Get residential sprinkler heads with the right features, including type, thermal rating, K-factor & aesthetics.

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