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Water and Water Mist Extinguishers

-- Steady & Reliable Manufacturer --

Introduction: Residue-Free Suppression for Class A Hazards

Water and Water Mist Extinguishers are primary tools for combating Class A fires (Ordinary Combustibles) such as wood, paper, textiles, and trash. They work primarily by cooling the fuel below its ignition temperature. Both are environmentally friendly and leave little to no corrosive residue, especially the Water Mist variant.

Water Extinguishers (often stored-pressure APW - Air Pressurized Water) are the simplest type. Water Mist Extinguishers use de-ionized water and a fine mist nozzle to spray microscopic water droplets. This mist reduces oxygen concentration (smothering) and cools more effectively due to the increased surface area of the droplets. Crucially, the fine mist is non-conductive and is often explicitly rated for use on Class C (Electrical) fires up to 100 kV.

They are stored-pressure units, requiring a gauge to confirm readiness. Water Mist is often preferred in hospital MRI rooms, telecom facilities, and archives where the risk is predominantly Class A, but electrical hazards or water damage minimization are also key concerns. (Approx. 580 words)

Advantage: Non-Toxic, Clean Agent, and Class C Rating (Mist)

  • Non-Toxic: Contains only water, making it safe for use in areas with high occupant density (hospitals, schools).
  • Minimal Damage: Discharges less aggressively than dry chemical, minimizing collateral damage to the premises and contents.
  • Class C (Mist): Water Mist uses de-ionized water, which prevents electrical conductivity, allowing its use on energized circuits (unlike standard water units).
  • Environmentally Friendly: Contains no harmful fluorinated chemicals (like older AFFF foams) or residual powders.
  • Long Discharge Time: The fine mist delivery system allows for an extended discharge time compared to standard water units.
  • Hydrostatic Advantage (Mist): Often requires hydrostatic testing only every 5 years, similar to CO2​, due to the specialized cylinder design.

Specification: Agent, Non-Conductivity, and Size

Agent TypeWater (APW) or De-Ionized Water (H2​O) Mist
Fire Class CoverageClass A (Solids), Mist Only: Class C (Electrical, 100 kV Tested)
Working Pressure100 psi to 175 psi (Propellant: Air/Nitrogen)
UL Fire Rating2A or 3A (Dependent on Volume)
Valve MaterialChrome-Plated Brass or Stainless Steel
Hose/NozzleStandard Hose with Mist/Fine Spray Nozzle (Mist Units)
Standard ComplianceNFPA 10, UL 711/299, EN 3
Hydrostatic Test Interval5 years (Water Mist) or 12 years (Standard Water)

Clean and Safe Cooling for Solid Fuel Fires

Office and Residential Areas

Standard water units placed in general areas where wood, paper, and trash (Class A) are the primary fire hazards.

Hospitals and Clinics

Water Mist units used for Class A hazards, as the clean, non-toxic agent minimizes contamination risk and electrical shock risk.

Libraries and Archive Rooms

Water Mist is ideal for protecting paper and historical documents, as the agent is less damaging than dry chemicals or standard water spray.

Telecom Equipment/MRI Suites

Water Mist units with Class C rating used to protect sensitive, high-value electrical equipment from Class A fires.

Areas requiring non-chemical agents

Where food processing or specific clean environments prohibit the use of chemical powders or foam. (Mist is preferred).

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 commodity orders, providing maximum financial security for both parties.

  • 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 upright on pallets, protected to prevent tipping and valve/gauge damage.

Comprehensive Information Summary

Minimum Order Quantity (MOQ)3,000 Units (APW), 1,000 Units (Water Mist)
Lead Time70-85 Days (Cylinder Fabrication, Valve Coating, Nozzle/Mist Head Assembly, Charging, and UL/EN Testing)
PackagingIndividual Carton, Palletized Shipping, Antifreeze Labeling (If Applicable).
CertificationsNFPA 10, UL 711/299, EN 3, CE Marked, Class C Tested (Mist Only), ISO 9001.
Raw MaterialsSteel/Aluminum Cylinder, Water/De-Ionized Water, Air/Nitrogen Propellant, Brass/Stainless Steel Valve, Special Fine-Mist Nozzle.
Customization OptionsAntifreeze Formulation, Nozzle Orifice Size (Mist Quality), Valve Material (Chrome/Stainless Steel), Labeling (Class C Rating Marking).

Professional Usage Tips

  1. APW/Mist Distinction:

    Be highly aware of the difference: Standard Water units are highly conductive and dangerous on electrical fires. Water Mist units are specifically non-conductive and Class C rated.

  2. Placement/Travel Distance:

    Ensure the travel distance to a Class A unit does not exceed 75 feet (NFPA 10).

  3. Freezing Risk:

    Standard water extinguishers will freeze in cold environments. They must be protected, or APW units containing antifreeze additives must be used (marked with a AF suffix).

  4. Maintenance Interval:

    Water Mist units require internal maintenance and a hydrostatic test every 5 years (due to DOT requirements for the cylinder/valve setup).

  5. Class B/C Limitation (Water):

    Never use a standard APW unit on Class B (flammable liquids, risk of splashing) or live Class C fires (electrocution risk).

Get in Touch

ABOUT KAITUO
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is China Water and Water Mist Extinguishers Manufacturers and Wholesale Water and Water Mist Extinguishers 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

Absolutely not. Standard water is highly conductive and will cause electrocution (NFPA 10).

It uses de-ionized water (non-conductive) and a fine mist nozzle that prevents a continuous conductive stream.

APW stands for Air Pressurized Water, the most common type of standard water extinguisher.

Standard water/APW units require hydrostatic testing every 12 years.

The Minimum Order Quantity (MOQ) for 2.5 gallon APW units is typically 3,000 units.

No. The mist may float the burning liquid, spreading the fire instead of extinguishing it.

A loaded stream unit is a water-based extinguisher containing an alkali metal salt to lower the freezing point and enhance the wetting effect.

Water Mist is preferred where a Class A rating is critical and personnel safety (asphyxiation risk of CO2​) is a concern in confined spaces.

No, the water itself does not need routine changing, only during the 5- or 12-year internal maintenance/hydro test.

The AF suffix denotes that the unit contains an antifreeze additive for use in low-temperature areas.