Fire Hoses with Nozzles: Vital Fire-Fighting Appliances for Maritime Safety
Fire hoses with nozzles are essential Fire-Fighting Appliances (FFA) carried onboard all seagoing vessels, offshore platforms, and passenger ships. Designed to deliver water or foam under pressure for effective fire suppression, they are a frontline defense against onboard fire hazards. Their carriage and specifications are strictly governed by the International Maritime Organization (IMO) and the Safety of Life at Sea (SOLAS) Convention, ensuring that all ships remain equipped with reliable and efficient fire-fighting gear.
IMO and SOLAS Requirements
The requirements for fire hoses and nozzles onboard ships are detailed in SOLAS Chapter II-2 and the Fire Safety Systems (FSS) Code. Key regulations include:
Number of Hoses:
Passenger ships: At least one fire hose per hydrant.
Cargo ships: Minimum of five fire hoses.
Construction: Hoses must be made of materials resistant to heat, oil, ozone, seawater, and weathering.
Length: Standard lengths of 18 m (cargo ships) and 15 m (passenger ships).
Nozzles: Must be dual-purpose (jet and spray) with 12 mm, 16 mm, or 19 mm diameter options depending on hydrant capacity.
Couplings: Compatible with international standard couplings for easy interchange.
Accessibility: Hoses and nozzles must be stored in accessible and clearly marked positions near hydrants.
Maintenance: Fire hoses must be capable of withstanding a test pressure of not less than 1.5 times their maximum working pressure.
Compliance ensures effective first-response fire-fighting and readiness during inspections and emergencies.
Technical Specifications
A typical SOLAS-compliant fire hose with nozzle has the following characteristics:
Length: 15 m (passenger ships), 18 m (cargo ships).
Diameter: 50 mm (commonly used), with options up to 65 mm.
Material: Synthetic woven-jacketed hose with rubber or polyurethane lining.
Working Pressure: 1.0–1.5 MPa.
Test Pressure: 2.4 MPa (minimum 1.5 × working pressure).
Bursting Pressure: > 3.5 MPa.
Couplings: International standard quick-release, Storz, or Nakajima types.
Nozzle Type: Dual-purpose (jet-spray) made from bronze, aluminum alloy, or corrosion-resistant stainless steel.
Nozzle Sizes: 12 mm (standard), 16 mm (machinery spaces), 19 mm (large cargo areas).
Weight: Lightweight for single-person handling but durable against external elements.
Types of Fire Hoses
Different types of fire hoses are used depending on vessel operations and fire-fighting requirements:
Unlined Woven Hose
Economical and lightweight.
Suitable for areas with low fire risk.
Rubber-Lined Hose
Most commonly used in marine applications.
Offers durability, abrasion resistance, and higher pressure capacity.
Double-Jacketed Hose
Heavy-duty construction.
Provides extra resistance to abrasion and puncture.
Semi-Rigid Hose (Reel Hose)
Stored on reels for quick deployment.
Used for smaller fires in accommodation or galley areas.
Collapsible Hose
Flexible and easy to stow.
Common in lifeboats and emergency lockers.
Types of Fire Nozzles
The effectiveness of a fire hose depends largely on its nozzle. IMO and SOLAS require dual-purpose nozzles capable of both spray and jet functions. Types include:
Dual-Purpose Jet-Spray Nozzle
Standard requirement onboard ships.
Adjustable for narrow jet or wide-angle spray.
Automatic Nozzles
Maintain constant flow across varying pressures.
Preferred for machinery spaces.
Foam Induction Nozzles
Used with foam concentrate for Class B fires (fuel-oil).
High-Velocity Water Spray Nozzles
Designed for areas with high fire risk.
Importance of Fire Hoses with Nozzles
Fire hoses with nozzles are indispensable for the following reasons:
Rapid Response: Deliver high-pressure water or foam to extinguish fire at its source.
Compliance: Meet IMO-SOLAS and classification society requirements.
Versatility: Suitable for Class A (solid), Class B (liquid), and certain Class C (gas) fires when used with foam.
Durability: Built to withstand harsh marine environments.
Crew Safety: Provide a reliable tool for trained crew during fire emergencies.
Placement Onboard
Accommodation Areas: Semi-rigid hoses on reels for immediate response.
Machinery Spaces: Rubber-lined hoses with dual-purpose nozzles.
Cargo Holds-Deck Areas: Longer hoses with larger nozzles (16–19 mm).
Bridge & Control Rooms: Fire stations equipped with quick-access hoses.
Leading Brands of Marine Fire Hoses and Nozzles
Several manufacturers provide IMO-SOLAS-approved fire hoses and nozzles used globally across the maritime sector:
Lalizas – Known for SOLAS-compliant hoses and jet-spray nozzles.
Viking Life-Saving Equipment – Supplies complete fire-fighting packages.
Survitec – Offers heavy-duty hoses and dual-purpose nozzles.
Elkhart Brass – Specializes in advanced marine-grade nozzles.
Angus Fire – Known for durable marine and offshore fire hoses.
Task Force Tips (TFT) – High-quality adjustable and automatic nozzles.
Maintenance and Testing
To ensure operational readiness, fire hoses and nozzles require periodic checks:
Monthly Inspection: Check hose condition, couplings, and nozzle operation.
Annual Pressure Test: Hose must withstand at least 1.5 × working pressure.
Cleaning & Drying: After use, hoses must be washed, dried, and stored properly.
Replacement: Damaged or aged hoses must be replaced with SOLAS-approved units.
Crew Training: Regular fire drills must include hose deployment and nozzle operation.
Common PSC Deficiencies
During Port State Control (PSC) inspections, deficiencies often reported include:
Missing or insufficient fire hoses.
Leaking, brittle, or damaged hoses.
Incompatible or corroded couplings.
Nozzles stuck in one mode (jet-spray).
Inaccessible or improperly stored hoses.
Role of Seanav Marine
Seanav Marine has a decade of expertise in supplying, inspecting, and maintaining marine fire hoses with nozzles. Backed by a skilled team and global channel partners, Seanav Marine ensures vessels meet IMO-SOLAS requirements by providing:
Supply of SOLAS-approved fire hoses and jet-spray nozzles.
Annual and five-yearly inspection, servicing, and testing.
Replacement of damaged or non-compliant hoses with certified models.
Guidance on proper onboard placement and regulatory compliance.
Crew training support during fire drills.
By working with Seanav Marine, ship operators gain the assurance of globally compliant safety systems and reliable support.
FAQs
Q1: What is the minimum required length of fire hoses onboard ships?
Passenger ships require hoses of at least 15 m, while cargo ships require hoses of at least 18 m in length.
Q2: Why are dual-purpose nozzles mandatory under SOLAS?
Dual-purpose nozzles allow both jet and spray functions, providing flexibility in tackling different fire scenarios effectively.
Q3: How often must fire hoses be pressure tested?
Fire hoses must undergo hydrostatic pressure testing at least once annually to ensure they withstand 1.5 × their working pressure.
Q4: Does Seanav Marine provide servicing and certification of fire hoses and nozzles?
Yes, Seanav Marine offers supply, testing, servicing, and certification through global partners, ensuring compliance with SOLAS standards.