Web Menu

Product Search

Language

Share

Carbon Dioxide (CO2) Extinguishers

-- Steady & Reliable Manufacturer --

Introduction: Clean Suppression for Electrical and Liquid Fires

Carbon Dioxide (CO2​) Extinguishers are high-pressure, non-conductive fire suppressants primarily used for Class B (Flammable Liquids) and Class C (Electrical Equipment) fires. They work by displacing oxygen (smothering) and cooling the burning material (particularly effective for B fires). CO2​ is a "clean agent" because it leaves no residue, making it ideal for protecting sensitive electronics, data centers, and industrial machinery.

These extinguishers are easily identified by their distinct hard horn/nozzle (which must be held by the handle to avoid freeze burn) and the absence of a pressure gauge. The CO2​ is stored as a liquid under high pressure (up to 1800 psi or 124 bar) in a seamless steel or aluminum cylinder. Since the pressure is temperature-dependent, the cylinder's readiness is always verified by weight measurement (NFPA 10).

Common sizes are 5 lb, 10 lb, 15 lb, and 20 lb units, with larger units typically mounted on wheeled carts. (Approx. 540 words)

Advantage: No Residue, Non-Conductive, and Deep Penetration

  • Zero Residue: Discharges as a gas/snow, eliminating the need for complex, costly cleanup associated with dry chemicals.
  • Safe for Electronics: Non-conductive and non-corrosive, making it the preferred choice for areas with computers and sensitive equipment.
  • Deep Penetration: The gas can permeate hard-to-reach areas within equipment cabinets and machinery enclosures.
  • Temperature Resistance: The high-pressure cylinder is robust and suitable for industrial environments.
  • Immediate Cooling: The rapid expansion of CO2​ provides a significant cooling effect (sub-zero temperature) on the fuel source.
  • Visual Verification by Weight: Tamper/leakage is reliably detected by simply weighing the unit against its marked full weight (NFPA 10).

Specification: Agent, Pressure, and Valve Type

Agent TypeLiquefied Carbon Dioxide (CO2​)
Fire Class CoverageClass B (Liquids), C (Electrical)
Stored Pressure850 psi to 1800 psi (Temperature Dependent)
UL Fire Rating2B:C to 10B:C (No Class A Rating)
Cylinder MaterialSeamless High-Pressure Steel or Aluminum
Discharge Time8 to 30 Seconds (Dependent on Size)
Valve TypeHeavy-Duty Pinch Valve (Required for High Pressure)
Standard ComplianceNFPA 10, UL 711/299, DOT/TPED (Cylinder)

Clean Suppression for High-Value and Liquid Hazards

Data Centers and Server Racks

Used for clean suppression of electrical faults, leaving no corrosive residue that could damage sensitive IT equipment.

Laboratories and Clean Rooms

Ideal for protecting costly testing equipment and preventing contamination from dry chemical residue.

Manufacturing/Machinery

Used on industrial machinery and hydraulic systems where flammable oils/liquids (Class B) and electrical components (Class C) are present.

Printing Presses and Commercial Kitchens (Electrical)

Protecting high-voltage motors, electrical panels, and control systems near flammable materials.

Flammable Liquid Storage

Effective on shallow liquid fires (Class B) by quickly smothering the vapor layer and cooling the fuel.

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 pressure vessel 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:

    Cylinders are individually protected, secured in thick cartons, and palletized, often with hazmat documentation for high-pressure goods.

Comprehensive Information Summary

Minimum Order Quantity (MOQ)2,000 Units (High Pressure Cylinder), 5,000 Units (Pinch Valves)
Lead Time90-120 Days (Seamless Cylinder Forging, High-Pressure Charging, UL/DOT Certification)
PackagingIndividual Box, Valve Protection, Hazardous Goods/High-Pressure Shipping Requirements.
CertificationsNFPA 10, UL 711/299, DOT/TPED (Cylinder Approval), CE Marked, ISO 9001.
Raw MaterialsSeamless Steel/Aluminum Cylinder, Liquefied CO2​ Agent, Forged Brass Pinch Valve, High-Impact Plastic Horn.
Customization OptionsCylinder Volume/Weight, Horn Nozzle Shape, Valve Connection Thread, Stamping/Labeling (Gross Weight/Hydro-Test Dates).

Professional Usage Tips

  1. Weighing Test:

    CO2​ extinguishers must be weighed annually (NFPA 10). If the weight loss exceeds 10% of the cylinder's marked gross weight, it must be recharged.

  2. Handling Horn:

    Always hold the non-metallic horn/handle when discharging. Touching the metal parts can cause severe freeze burns due to the sub-zero temperature of the expanding gas.

  3. Ventilation:

    Do not use CO2​ in confined spaces (small rooms, closets) where the oxygen displacement could pose an asphyxiation risk to the operator. Evacuate immediately after use.

  4. Hydrostatic Testing:

    High-pressure CO2​ cylinders require hydrostatic testing every 5 years due to the extreme internal pressures.

  5. Class A Ineffectiveness:

    Do not use CO2​ on deep-seated Class A (wood, paper) fires, as the cooling/smothering effect is temporary, and re-ignition is likely.

Get in Touch

ABOUT KAITUO
Ningbo Kaituo Valve Co., Ltd., also known as Ningbo Anke Fire Equipment Co., Ltd., is China Carbon Dioxide (CO2) Extinguishers Manufacturers and Wholesale Carbon Dioxide (CO2) 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.
Read More

Certificate

  • Honor
  • Honor
  • Honor
  • Honor
  • Honor
  • Honor

FAQ

You must weigh the extinguisher. Its current weight should match the marked gross weight on the label (within a 10% tolerance).

It is not rated for Class A (solids) because it lacks the ability to prevent smoldering and re-ignition.

The rapid expansion of the CO2​ causes the metal parts to cool to sub-zero temperatures, leading to severe freeze burns.

Due to the high pressure, CO2​ cylinders must be hydro-tested every 5 years.

The Minimum Order Quantity (MOQ) for 10 lb CO2​ units is typically 2,000 units.

It is a gaseous agent that leaves no residue when discharged, minimizing damage to assets.

It is a high-pressure cylinder, storing the agent in a liquid state, with pressures exceeding 850 psi at room temperature.

If the unit shows a weight loss exceeding 10% of its nominal charged weight, it is considered impaired and must be recharged.

The 10 lb or 15 lb units are common, offering a good balance of agent quantity and portability for a specialized area.

The siphon tube extends to the bottom, ensuring the liquid CO2​ is discharged, not just the gas vapor at the top.