Apparatus, Gear & SCBAAKA: pressure hose, fire hose, high-pressure line

High-Pressure Hose

High-pressure fire hose refers to reinforced small-diameter hose (typically ¾-inch to 1-inch booster hose or high-pressure attack hose) engineered to withstand operating pressures of 400 to 800+ PSI, …

Definition & Operational Usage of High-Pressure Hose

What Is High-Pressure Hose?

High-pressure fire hose refers to reinforced small-diameter hose (typically ¾-inch to 1-inch booster hose or high-pressure attack hose) engineered to withstand operating pressures of 400 to 800+ PSI, used primarily on booster reels, high-rise standpipe packs, and specialized high-pressure fog suppression systems.

⚠️ Operational Safety Warning:Never exceed the hose, coupling, appliance, or nozzle manufacturer's rated pressure. Inspect the complete hose assembly for jacket damage, coupling damage, leakage, deformation, or other defects before high-pressure use and remove questionable hose from service according to department and manufacturer procedures.

Why High-Pressure Hose Matters on the Fireground

High-pressure hose delivers finely atomized water droplets that absorb heat extremely fast while using lower water volume, making it effective for quick vehicle fires and wildland brush protection. However, high operating pressures create strong nozzle reaction and require heavy-duty fittings to prevent line rupture.

Relevant NFPA Standards

  • NFPA 1960: Standard for Fire Hose Connections, Spray Nozzles, Manufacturer's Design of Fire Department Ground Ladders, Fire Hose, and Powered Rescue Tools
  • NFPA 1930: Standard on Fire and Emergency Service Use of Thermal Imagers, Two-Way Portable RF Voice Communication Devices, Ground Ladders, Rescue Tools, Fire Hose, and Fire Hose Appliances

Field Procedures & Tactical Steps

  1. Inspect booster reel hose and high-pressure couplings during daily apparatus check out.
  2. Pull the required length of hose from the reel, ensuring all kinks are removed before charging.
  3. Signal pump operator to engage high-pressure pump stage or booster pump.
  4. Brace firmly against nozzle reaction before opening the high-pressure control bail.
  5. Rewind hose neatly onto reel after use, washing off dirt and inspecting jacket for abrasion.

Common Context & Application

Deployed from apparatus booster reels for small exterior trash fires, vehicle fires, and wildland mop-up operations, as well as specialized high-pressure high-rise attack units.

Frequently Asked Questions about High-Pressure Hose

What is the typical operating pressure range for high-pressure booster hose?
High-pressure booster lines typically operate between 250 and 800 PSI, compared to standard 1¾-inch structural attack lines operating at 100 to 200 PSI.
Why is booster hose not recommended for primary interior structural fire attack?
Booster hose (¾ to 1 inch) delivers only 30 to 60 GPM, which is insufficient water flow to absorb the heat release rate of a fully involved interior compartment fire.

Other Names for High-Pressure Hose

pressure hosefire hosehigh-pressure line

High-Pressure Hose may also appear in training materials, NFPA standards, or department SOPs as: pressure hose, fire hose, high-pressure line.

Relevant Tools

Operational calculators related to High-Pressure Hose:

Category:Apparatus, Gear & SCBA — PPE, SCBA, apparatus components, hose, nozzles, tools, and operational equipment terminology.
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