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Stored Pressure Water Fire Extinguisher

-- Steady & Reliable Manufacturer --

Introduction: Class A Cooling and Soaking Agent

The Stored Pressure Water Fire Extinguisher is specifically designed for Class A fires, involving ordinary combustibles like wood, paper, textiles, and trash. It utilizes plain or de-ionized water, pressurized by nitrogen or compressed air, to cool the fuel source below its ignition temperature, effectively preventing re-ignition.

Because water conducts electricity and can spread flammable liquids, this extinguisher is not safe for use on Class  B (flammable liquids) or Class  C (electrical) fires. However, its effectiveness and low cost make it a primary defense in many environments where Class  A hazards dominate (e.g., classrooms, paper warehouses). To prevent freezing in cold climates, some models use an Anti-Freeze Additive, creating a Wetted  Chemical or Aqueous  Film  Forming  Foam (AFFF) version which changes its classification.

Standard water units are typically 2.5 gallon capacity (or 9 liter in metric markets), providing a long discharge time and significant cooling effect. (Approx. 550 words)

Advantage: Deep Cooling, Clean Agent, and Long Discharge

  • Superior Cooling: Water is highly effective at absorbing heat, lowering the temperature of solid materials below their ignition point, preventing re-ignition.
  • Clean Agent: Leaves no chemical residue (unlike ABC powder), simplifying the post-fire cleanup process.
  • High Discharge Volume: The 2.5 gallon capacity provides a substantial volume of water for deep soaking of Class  A materials.
  • Low Environmental Impact: Uses a non-toxic, environmentally safe extinguishing medium (plain water).
  • Cost-Effective Agent: The cheapest agent to recharge and service, provided the cylinder and valve remain in good condition.
  • Long Discharge Time: Offers a relatively long, continuous discharge time (often 45-60 seconds) compared to powder units.

Specification: Agent, Capacity, and Operating Range

Component FunctionCooling-Based Suppression for Ordinary Combustible Fires
Extinguishing AgentPlain Water (or De-Ionized Water)
Fire ClassificationClass  A Only (Solid Combustibles)
Design TypeStored-Pressure (Nitrogen or Air Propelled)
Capacity2.5 Gallons (≈9 Liters) Standard
Working Pressure100 psi to 175 psi (Gauge in Green Zone)
Standard ComplianceUL 711/299, EN 3 (Capacity and Rating), NFPA 10
Key RestrictionMust NOT be used on live electrical or flammable liquids

Targeted Class A Fire Environments

Wood and Paper Mills

High hazard environments where the primary fuel sources are Class  A materials; water provides deep cooling.

Libraries and Schools

Effective against paper and furniture fires; often paired with a separate CO2​ or ABC unit for other hazards.

Non-Freezing Environments

Ideal for climate-controlled buildings as pure water can freeze in colder areas, compromising readiness.

Residential Utility Rooms

Effective for fires originating from wood framing, textiles, or general combustibles.

Marine Vessel Interiors

Used in accommodation areas where wood, bedding, and trash fires are a primary Class  A risk.

Grow Your Bussiness With KAITUO

  • INNOVATION

    Professional R&D Team

    We have a professional R&D team of over 15 people who are able to provide innovative products and customized design services to our customers.

  • QUALITY

    Product quality assurance

    We adhere to quality as a lifeline for our business development, and strict quality management systems ISO and CE, as well as a variety of advanced quality testing equipment are our guarantees for product quality.

  • PRODUCTION CAPACITY

    Annual output exceeds 400,000

    Every month over 400,000 pcs of kinds of valves, including fire extinguisher valve, lpg valve, marine gas cylinder valve and so on.

  • SERVICE

    One-stop service

    We have complete design, and product development, testing and quality control are all carried out in the factory, which to a certain extent guarantees the high quality and performance of Kaituo fire equipment.

Payment & Shipping: Flexible Global Trade Solutions

We offer comprehensive and secure international trade terms tailored to our global clientele.

  • Accepted Payment Methods:

    Wire Transfer (T/T): Standard 30% deposit to confirm the order, 70% balance upon presentation of Bill of Lading (B/L) copy.

    Letter of Credit (L/C): Irrevocable L/C at sight for large-scale cylinder manufacturing and water-based agent orders.

  • Shipping Terms (Incoterms):

    FOB (Free On Board): Ningbo Port is our standard shipping hub.

    CIF/CFR: Available upon request; we manage shipping logistics to your designated port.

  • Packaging:

    Units are shipped empty (or charged only with air/nitrogen) to comply with transport regulations; water/agent filling is done locally.

Comprehensive Information Summary

Minimum Order Quantity (MOQ)5,000 Units (Standard Steel), 2,000 Units (Stainless Steel/Specialty)
Lead Time75-90 Days (Cylinder Fabrication, Lining/Coating, Valve Assembly, Pressure Testing)
PackagingIndividual Boxed, Shipped Empty or Pressurized with Inert Gas.
CertificationsUL Listed, EN 3, CE Marked, NFPA 10 Compliance, ISO 9001.
Raw MaterialsSteel Cylinder (Internal Coating), Brass/Aluminum Valve, Nitrogen/Air Propellant, Water/Additive.
Customization OptionsAgent (Plain Water, AFFF, Wetted Chemical), Capacity (gal/L), Cylinder Material (Steel/Stainless Steel), Discharge Nozzle.

Professional Usage Tips

  1. Check Ambient Temperature:

    Do not install pure water units where temperatures drop below 40∘F (4∘C), unless an anti-freeze charge is used.

  2. Siphon Tube Integrity:

    Since the siphon tube is exposed to water, regularly check for corrosion or blockage during the 6-year internal inspection.

  3. Stream Target:

    Direct the water stream deep into the glowing embers or hot fuel source to maximize the cooling effect, not just the visible flames.

  4. Pressure Verification:

    Check the gauge monthly; loss of pressure indicates a leak through the valve or hose assembly.

  5. Electrical Clearance:

    Ensure the user knows the minimum safe clearance distance from any electrical panel or wiring to avoid shock hazard.

Get in Touch

ABOUT KAITUO
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is China Stored Pressure Water Fire Extinguisher Manufacturers and Wholesale Stored Pressure Water Fire Extinguisher Factory, specializing in the research and development, production and export of fire equipment. It owns the anke brand and a number of national high-tech patents.
Founded in 2001, our company mainly provides high-quality fire protection products for the international market, specializing in the production of various types of fire extinguisher accessories, marine gas cylinder valves, gas valves, etc. After years of hard work and continuous improvement of process reform, our products are exported to dozens of countries around the world and have won a good international reputation. All of our products have obtained the EU EN, CE certification in 2007.
Welcome all customers to call and visit us. Our company has a professional sales team to provide accurate services.
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FAQ

Water provides superior deep cooling for Class  A materials and leaves no messy, corrosive residue.

Water is conductive and poses a severe electrocution hazard if used on live circuits.

The standard size is 2.5 gallons (≈9 liters), yielding a 2A fire rating.

No. Only manufacturer-certified anti-freeze agents can be used; incorrect additives can damage the cylinder or seals.

The Minimum Order Quantity (MOQ) for standard water units is typically 5,000 units.

A water unit with an additive (e.g., potassium acetate) that enhances its deep-seating capability and anti-freeze properties.

The steel cylinder must be hydrotested every 12 years (NFPA 10).

A standard 2.5 gallon unit discharges for approximately 45 to 60 seconds.

Standard stored-pressure units are typically charged to between 100 psi and 175 psi.

Yes, but only on wood, paper, or textiles. Not on cooking grease or electrical appliances.