Water Fire Extinguisher

Poseidon’s Water Fire Extinguisher series is suitable for extinguishing Class A fires (garbage, wood, and paper). Designed and manufactured according to UL/ULC 2A standards, it has a capacity of 2.5 gallons (9.5 L), and the stream of water maintains a continuous discharge time of 45–65 seconds at a spray distance of 12–18 m (40–60 ft), ensuring complete extinguishment without reignition for both wood cribs (112 pieces) and panels (10 ft × 10 ft).

The 2.5-gallon water fire extinguisher features a deep-drawn steel/aluminum cylinder with a thick-walled polished stainless steel cylinder and an all-metal valve structure, ensuring stable pressure resistance without leakage at a normal working pressure of 100–195 psi (0.7–1.35 MPa). It can withstand up to three times the working pressure without ductile failure or fragmentation.

Poseidon offers customization, design, and OEM services for Water Fire Extinguishers based on UL/ULC 2A standards, and provides certification testing support for UL/NFPA standards.

Poseidon water extinguishers are designed for operating temperatures of +40°F to +120°F (≈4–49°C), utilizing a 12–18 m (40–60 ft) stream of water to extinguish Class A fires caused by wood, paper, fabric, trash, and plastics (non-metallic solids) through cooling, soaking, and penetration.

The water fire extinguisher features a robust and durable impact-resistant metal valve, handle, and lever, and has undergone multiple drop tests from 0.9–1.0 m (≈36 in) to ensure functionality in critical situations. The water fire extinguisher utilizes a deep-drawn steel/aluminum cylinder with a thick-walled structure, designed and tested for 48–96 hours of corrosion (salt spray) resistance, ensuring long-term storage in harsh environments without affecting structure or operation.

Poseidon has conducted the following tests on standard water-based fire extinguishers (2.5 gallons) in its internal laboratory:

  • Fire Test (Wood Crib): 112 pieces of 38 mm × 38 mm (2 in × 2 in) wood pieces, 635 mm (25 in) long, stacked in 16 layers with 7 pieces per layer, extinguished with a single extinguisher without re-ignition.
  • Fire Test (Wood Panel): 10 ft × 10 ft wood panel, extinguished with a single extinguisher without re-ignition.
  • Pressure Resistance: Operating pressure of 100–195 psi (0.7–1.35 MPa) with no leakage; pressure test ≥ 2 × operating pressure with no permanent deformation; ≥ 3 × operating pressure with ductile failure, no fragmentation.
  • Drop Test: 10 drops from a height of 0.9–1.0 m (≈36 in), still functional after drops.
  • Corrosion Test: 48–96 hours in a salt spray environment without affecting structure or operation.
  • Discharge Time: 55 seconds uninterrupted.
  • Discharge Distance: 18m (60 ft), covering panel + crib.

The water fire extinguisher series comes with a 5-year manufacturer’s warranty, and after-sales maintenance and OEM services are available depending on the region.

  • Class A Fire Performance (2-A Test Basis):Designed to extinguish UL 711–defined 2-A Class A fire load (wood crib + wood panel), equivalent to 112 wood members, using a single extinguisher and continuous discharge.

  • Extinguishing Capacity: Approx. 2.5 gal (9.5 L) water, suitable for ordinary combustible fires (wood, paper, cardboard, textiles).

  • Discharge Performance: Continuous discharge time ≥50 s; effective stream reach 40–60 ft (12–18 m).

  • Pressure Design: Service pressure 100–195 psi; pressure integrity designed for ≥2× proof pressure and ≥3× burst pressure.

  • Mechanical Durability: Structural design suitable for ~36 in (0.9–1.0 m) drop impact without loss of function.

  • Environmental Operating Range: +40°F to +120°F (4°C to 49°C); optional antifreeze configuration available for low-temperature use.

  • Construction: Metal cylinder with corrosion-resistant finish; pressure gauge for visual status check.

  • Mounting Configuration: Compatible with wall and vehicle brackets; OEM / private-label configurations available.

  • Transport Configuration: Supplied empty for safe handling and transport.

  • Warehouses and industrial facilities
    Suitable for storage and handling areas with a high concentration of ordinary combustibles such as cartons, pallets, paper goods, and packaging materials.

  • Manufacturing plants and workshops
    Appropriate for Class A fire risks around production lines, assembly areas, and material staging zones.

  • Schools, offices, and commercial buildings
    Water-based suppression with no chemical residue, making it suitable for occupied environments and property-focused protection.

  • Public buildings and retail spaces
    Designed for areas where fires typically involve trash, furnishings, displays, and other common combustible materials.

  • Fleet and vehicle applications
    Can be installed using approved vehicle or wall mounting brackets to maintain readiness during transport and mobile operations.

Technical Parameters

ParameterSpecificationUnit / Design Reference
Extinguishing AgentClean waterClass A water-based design
Fire Performance BasisDesigned for 2-A Class A fire conditions (wood crib and panel)UL 711 test methodology (design reference)
Applicable Fire ClassClass A onlyOrdinary combustibles
Cylinder MaterialStainless steel (SS304) or epoxy-coated carbon steel
Working Pressure14 bar (203 psi)Design pressure
Proof / Test Pressure27 bar (400 psi) (≈2× safety factor)Pressure safety design
Operating Temperature Range–5 °C to +60 °C (23 °F to 140 °F)Declared operating range
Continuous Discharge Time≥ 50 secondsPerformance design target
Effective Discharge Distance45–55 ft (13.7–16.8 m)Performance design target
Cylinder Diameter × Height7 in × 24.5 in (178 mm × 622 mm)2.5 gal reference model
Capacity Options1.3 / 2.4 / 3.2 gal (5 / 9 / 12 L)Configurable
Mounting OptionsWall hook or vehicle bracketCommon installation practice
Warranty5-year limited warrantyManufacturer policy

Specifications

ParameterSpecificationNotes
ModelPSB12525 L configuration
Extinguishing AgentClean waterWater-based, no additives
Intended Fire ApplicationClass A ordinary combustibles onlyWood, paper, packaging, textiles
Fire Performance BasisDesigned for 2-A to 3-A Class A fire conditionsBased on UL 711 fire test methodology (design reference)
Cylinder MaterialCarbon steel or stainless steel SS304Optional material selection
Cylinder Outer Diameter250 mm (9.84 in)
Cylinder Length625 mm (24.61 in)
Cylinder Volume30 L (7.93 gal)Total internal volume
Nominal Capacity25 L (6.6 gal)Usable water charge
Full Weight44.5 kg (98.03 lbs)Filled weight
Working Pressure14 bar (203 psi)Design working pressure
Test Pressure27 bar (400 psi)Approx. 2× safety factor
Operating Temperature Range–5 °C to +60 °C (23 °F to 140 °F)Declared operating range
Discharge ModeContinuous manual dischargeSingle-handle operation
MountingFloor standing or bracket-mountedSite dependent
Packing Size470 × 430 × 960 mm (18.5 × 16.9 × 37.8 in)Single unit
Packing Quantity1 pc / carton
Container Loading (20 ft)150 pcsReference logistics data
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