CO2 Fire Extinguisher Hose Nozzle

 

Material Analysis 

1.Engineering plastic components

• Main material: 30% glass fiber reinforced PA66 nylon, tensile strength > 180 MPa
• Sealing ring: Fluororubber (FKM), with excellent resistance to CO2 corrosion performance
• Weather resistant treatment: UV anti aging additive, outdoor service life of over 8 years

 

2. Metal components

• Connecting ring: 6061-T6 aluminum alloy, anodized treatment
• Fasteners: Stainless steel 304, rust prevention grade A2-70
• Conductive component: Copper plated steel wire mesh, static dissipation rate ≥ 95%

 

User Guide

1.Installation Check: Ensure that the nozzle matches the threads of the fire extinguisher valve. Manually tighten it, then use a tool to secure it another 1/4 turn.

2.Spraying technique: Keep the nozzle 1.5 to 2 meters away from the fire source. First, conduct a test spray to confirm the spraying trajectory.

3.Maintenance Points:

• Check the elasticity of the sealing ring every month
• Test the conductivity performance every quarter
• Conduct stress tests every year

4.Safety Warning:

• Do not touch the sprayed metal parts with your hands (to prevent frostbite)
• Ensure good ventilation during the spraying process.
• Professional filling service is required after use. 

Application scenarios

FAQ

Q1: Can this nozzle be compatible with my existing CO2 fire extinguisher?
A: This product uses the international standard G5/8 threaded interface, which is compatible with over 90% of the CO2 fire extinguishers available on the market. Before purchasing, please confirm the valve thread specification of your fire extinguisher, or provide the model or photo of the fire extinguisher. Our customer service can assist in confirming the compatibility.

Q2: How should one choose between the plastic model and the aluminum plastic composite model?
A: The plastic model (280g) is more suitable for indoor office environments, being economical and lightweight; the aluminum-plastic composite model (350g) has an enhanced metal structure and is recommended for use in harsh environments such as industrial workshops and ports. Both models have the same core performance, with the main difference lying in their durability.

Q3: Why can't the CO2 nozzle be used with other types of fire extinguishers?
A: There are three main reasons: ① When CO2 is sprayed, the temperature is extremely low (-78℃), requiring special materials that can withstand low temperatures; ② CO2 is a high pressure gas, requiring a higher pressure design; ③ The diffusion angle of the dedicated nozzle has been optimized based on the characteristics of the gas. Mixing them could lead to sealing failure or a decrease in fire extinguishing efficiency.

Q4: Can the nozzle be cleaned with water?
A: The exterior can be rinsed with clean water, but please note: ① Do not use oily cleaning agents; ② After rinsing, the inner cavity needs to be dried with compressed air; ③ Ensure it is completely dry before storage. It is recommended to use the moisture proof protective cover provided by us.

Q5: How often should the conductivity performance be tested?
A: In a regular environment, testing should be conducted once every quarter. For special places such as chemical or dusty environments, it is recommended to test monthly. You can measure the resistance between the nozzle and the grounding terminal using a common multimeter. The value should be below 1MΩ.

Q6: How should the unused nozzles be stored?
A: Correct storage steps: ① Clean and apply silicone based protective grease; ② Seal with an anti static bag; ③ Store in a cool and dry place (avoid direct sunlight); ④ Keep at least 1 meter away from strong magnetic equipment.

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