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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
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      • Double Jacket Hose
      • Rack and Reel Hose
      • Single Jacket Hose
    • Hose Adapters and Reducers
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Pipe

#367 – Which Fire Sprinkler Flex Drop Do I Need? Part 1

January 28, 2025October 20, 2020 by Jason Hugo
fire sprinkler flex drop guide

Use this guide to select the right fire sprinkler flex drop for your fire sprinkler installation.

Categories Pipe Leave a comment

#363 – How to Use Pipe Riser Clamps

January 28, 2025September 22, 2020 by Jason Hugo
pipe riser clamp

To support vertical runs of pipe, riser clamps transfer the load to the building structure. QRFS explains how and where to install these devices.

Categories Pipe 2 Comments

#362 – How to Use Pipe Thread Sealant

September 1, 2025September 15, 2020 by Jason Hugo
How to use pipe thread sealant

Pipe thread sealant creates a water-tight seal in threaded pipe joints. Learn how to use pipe thread sealant and whether PTFE is the same as Teflon.

Categories Pipe 8 Comments

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

January 28, 2025August 11, 2020 by Jason Hugo
Mechanical tee fire sprinkler

Mechanical tees make adding branch lines to fire sprinkler systems easy. Learn how mechanical tees work and how to install them.

Categories Pipe 2 Comments

#356 – Sprinkler System Drain Caps: Why Do You Need Them?

January 28, 2025August 4, 2020 by Jason Hugo
sprinkler system drain cap

Grooved drain caps make it simple to flush water from fire protection systems thoroughly, and also serve as transitional fittings. Learn more.

Categories Pipe Leave a comment

#335 – Sprinkler Pipe Fittings and Couplings: Types and Uses

September 1, 2025March 24, 2020 by QRFS Team
Sprinkler Pipe Fittings Types

Grooved pipe fittings make for faster installations—and an impressive variety of couplings, tees, and other sprinkler pipe fittings make them far easier, too.

Categories Pipe 8 Comments

#329 – Seismic Bracing for Ductwork, HVAC, and Electrical Systems

September 1, 2025March 3, 2020 by QRFS Team
Seismic Bracing for Ductwork HVAC and Electrical

Protecting nonstructural components from earthquake damage In earthquake-prone areas, proper design and engineering make sure buildings stay structurally sound during a seismic event. But earthquakes … Read more

Categories Pipe 11 Comments

#321 – Loos Seismic Bracing Protects Building Systems from Earthquakes

July 9, 2025January 30, 2020 by QRFS Team

Seismic bracing for pipes, ductwork, electrical components, and more keeps systems up and running after the shaking stops The risk of fire runs high after … Read more

Categories Pipe 2 Comments

#297 – Fire Sprinkler Pipe: How to Perform an Obstruction Investigation, Part 2

January 30, 2025November 19, 2019 by Jason Hugo
Fire sprinkler pipe obstruction investigation

Blocked fire sprinkler pipe puts lives and property in jeopardy. Learn how to conduct an obstruction investigation and flush blocked pipes.

Categories Pipe Leave a comment

#296 – Fire Sprinkler Pipe: How to Perform an Obstruction Investigation, Part 1

January 30, 2025November 15, 2019 by Jason Hugo
Fire sprinkler pipe obstruction investigation

Learn how to spot the conditions that should trigger a detailed obstruction investigation of fire sprinkler pipe according to NFPA 25.

Categories Pipe 4 Comments

#252 – Set and Cure Times for CPVC Glue (Solvent Cement): How Much Time Does It Take to Dry?

September 1, 2025August 19, 2019 by Jason Hugo
CPVC glue

Often called CPVC glue, CPVC solvent cement joins pipes and fittings at a molecular level. QRFS covers everything installers need to know about the time required for CPVC glue to initially dry (set) and permanently cure when used with CPVC brands like BlazeMaster®, FlameGuard®, and ThermaFit Industries.

Categories Pipe Leave a comment
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