Fire Extinguishers: Critical Fire-Fighting Appliances for Maritime Safety
A fire extinguisher is one of the most vital Fire Fighting Appliances (FFA) and Life Saving Appliances (LSA) carried onboard ships and offshore installations. Designed to suppress incipient fires before they spread, fire extinguishers are the first line of defense in protecting human lives, shipboard assets, and cargo. Their carriage, specifications, and maintenance are strictly regulated under the International Maritime Organization (IMO) and the Safety of Life at Sea (SOLAS) Convention, ensuring that every vessel at sea is adequately equipped to handle emergencies.
IMO and SOLAS Requirements
The carriage and use of fire extinguishers onboard ships are governed by SOLAS Chapter II-2 (Construction – Fire Protection, Fire Detection, and Fire Extinction) and the Fire Safety Systems (FSS) Code. The regulations require that:
Minimum Number: Ships must carry a sufficient number of portable extinguishers as determined by vessel size and type.
Type and Location: Different classes of extinguishers are placed in strategic areas depending on fire risk (machinery spaces, accommodation, bridge, galley, cargo holds).
Capacity: Portable extinguishers typically range from 2–12 liters-kg capacity.
Approval: Only extinguishers approved as per IMO, SOLAS, and LSA Code standards can be used.
Maintenance: Must be inspected monthly, serviced annually, and hydrostatically tested every 5 years.
Accessibility: Extinguishers must be placed in visible and accessible locations with proper signage.
Port State Control (PSC) inspections regularly check the validity, accessibility, and condition of extinguishers. Non-compliance often results in detention.
Technical Specifications
While specifications may vary depending on type, a standard SOLAS-compliant extinguisher includes:
Capacity: 2L to 12L (foam-water), 2kg to 12kg (powder-CO₂).
Material: Corrosion-resistant steel-aluminum cylinder with protective coating.
Discharge Range: 2–6 meters (depending on type).
Operating Temperature: -30°C to +60°C.
Discharge Time: 8–20 seconds.
Pressure: Typically 15–18 bar at 20°C.
Markings: Clear instructions, SOLAS approval, IMO symbols, and color-coded classification.
Mounting: Brackets or wall stands for secure storage.
Types of Fire Extinguishers
Maritime extinguishers are classified based on the type of fire they are designed to combat, following the fire classification system (A, B, C, D, F-K).
Water Extinguishers
Suitable for Class A fires (wood, paper, textiles).
Not for electrical or oil fires.
Foam Extinguishers (AFFF – Aqueous Film Forming Foam)
Effective on Class A (solid) and Class B (liquid) fires.
Used in accommodation, cargo holds, and galleys.
Dry Powder Extinguishers
Versatile; suitable for Class A, B, and C (gas) fires.
Commonly used in machinery spaces and near fuel-handling areas.
CO₂ Extinguishers
Effective against Class B and electrical fires.
Non-conductive and leaves no residue.
Used in control rooms, bridges, engine rooms, and electrical panels.
Wet Chemical Extinguishers
Designed for Class F (cooking oils and fats).
Mainly used in ship galleys.
Specialty Extinguishers (Clean Agent, Halotron, Novec 1230)
Replace halons banned under the Montreal Protocol.
Effective against Class B and electrical fires.
Environmentally safer with zero ozone depletion potential.
Importance of Fire Extinguishers at Sea
Fire is among the most dangerous hazards at sea due to limited escape routes and proximity of fuel, cargo, and machinery. Fire extinguishers are critical for:
Immediate First Response – Containing small fires before they escalate.
Crew Safety – Preventing toxic smoke and fire spread in confined ship environments.
Regulatory Compliance – Meeting IMO, SOLAS, and classification society requirements.
Operational Continuity – Avoiding costly downtime, damage, or vessel detention.
Placement of Fire Extinguishers Onboard
Accommodation: Water or foam extinguishers in corridors and cabins.
Engine Room-Machinery Space: CO₂ and dry powder extinguishers.
Bridge and Control Rooms: CO₂ extinguishers.
Galley: Wet chemical extinguishers.
Cargo Holds: Foam or dry powder units.
Each location is carefully considered for maximum safety and efficiency.
Leading Brands of Marine Fire Extinguishers
Several manufacturers provide IMO and SOLAS-approved extinguishers trusted globally in the maritime industry:
Gloria – Known for high-quality portable extinguishers for marine and industrial use.
Survitec – Offers a full range of fire-fighting appliances for ships.
Viking Life-Saving Equipment – Supplies SOLAS-approved portable extinguishers.
Lalizas – Provides IMO-compliant extinguishers widely used in the shipping sector.
Ceasefire & Minimax – Popular brands offering both marine and industrial extinguishers.
Amerex & Kidde – Globally recognized for reliable fire protection systems.
Inspection, Maintenance, and Testing
To ensure readiness, extinguishers must undergo systematic care:
Monthly Inspections: Pressure gauge, seals, safety pin, and accessibility.
Annual Servicing: Complete inspection, recharging if necessary.
Hydrostatic Testing: Every 5 years to check cylinder integrity.
Crew Training: Regular fire drills, including extinguisher use, are mandatory under SOLAS.
Common PSC Deficiencies
Frequent Port State Control deficiencies related to extinguishers include:
Missing or inadequate extinguishers.
Expired or discharged units.
Blocked access to extinguishers.
Pressure gauge in the red zone.
Lack of crew knowledge on operation.
Addressing these issues proactively avoids detentions and ensures compliance.
Role of Seanav Marine
Seanav Marine has a decade of expertise in supplying, maintaining, and servicing marine fire extinguishers and related fire-fighting appliances. With a team of experienced engineers and a strong global network of channel partners, Seanav Marine ensures compliance with IMO-SOLAS requirements by offering:
Supply of SOLAS-approved portable and fixed extinguishers.
Annual and five-yearly inspection, testing, and servicing.
Hydrostatic testing and certification of cylinders.
Guidance for proper onboard placement and regulatory compliance.
Crew training assistance during fire safety drills.
Seanav Marine works globally to provide reliable solutions, ensuring ships remain safe, compliant, and operational.
FAQs
Q1: How often should fire extinguishers be inspected onboard?
Fire extinguishers must be visually inspected monthly, serviced annually, and hydrostatically tested every 5 years.
Q2: Can CO₂ extinguishers be used in accommodation spaces?
CO₂ extinguishers are typically used in engine rooms, bridges, and electrical panels due to their non-conductive nature. They are not recommended for confined accommodation spaces without proper ventilation.
Q3: What is the most common deficiency found during PSC inspections?
The most common issues are missing, expired, or discharged extinguishers and blocked access to fire-fighting equipment.
Q4: Does Seanav Marine provide certification support for extinguishers?
Yes, Seanav Marine offers supply, maintenance, servicing, and certification support through global channel partners, ensuring SOLAS compliance.