High-pressure brass CO₂ valve
Professional fire gas control solution | Multi-gas compatibility | Safe explosion-proof design
Key selling points overview
✔ Military-grade brass material: High strength and corrosion resistance, lifespan extended by 50%
✔ Overpressure automatic protection: 22.5MPa safety valve instantly releases pressure
✔ Fully gas-compatible: Oxygen/CO₂/natural gas/air universal, one valve for multiple uses
✔ 15MPa high-pressure stability: Industrial-level pressure-bearing, zero-leakage sealing technology
✔ International standard interface: PZ27.8 imported + CGA320 export, direct connection of global equipment
Product Advantages
Safe and Reliable: The high-quality brass material and precise pressure control design, along with the protection of the safety valve, ensure that there will be no leakage or overpressure safety hazards during use, providing reliable safety guarantees for fire operations and related production activities.
High Compatibility: Standard imported PZ27.8 threads and export CGA320 threads enable it to perfectly match most related equipment and pipelines on the market, facilitating users in system setup and equipment upgrades.
High Durability: The anti-corrosion property of brass material ensures that it can maintain a good working condition in different environments, reducing the occurrence of faults and maintenance times due to corrosion, and lowering the usage cost, with a longer service life.
Product Parameters
1.Material:
Made of high-quality brass. Brass has excellent corrosion resistance and can effectively resist the erosion of carbon dioxide and possible humid environments, significantly extending the service life of the valve and ensuring stable and reliable performance over a long period of use.
2.Imported Thread:
PZ27.8 specification. This standard thread design ensures a tight and stable connection between the valve and the imported pipeline, effectively preventing gas leakage and guaranteeing the safety and sealing of the system.
3.Outlet Thread:
CGA320 standard. Ensures precise connection with various devices or pipelines that comply with the CGA320 interface, facilitating installation and use, and providing a reliable channel for the output of carbon dioxide.
4.DN (Diameter):
4mm. The diameter size has been carefully designed to meet the stable flow requirements of carbon dioxide under specific pressures and ensure effective control of the gas by the valve.
5.Working Pressure:
Up to 15 MPa. Capable of withstanding high pressure, suitable for carbon dioxide transportation and control in various high-pressure environments, ensuring normal operation in complex conditions and fulfilling its intended fire protection function.
6.Safety Valve:
Set at 20.25 - 22.5 MPa. When the system pressure exceeds the normal working pressure range and reaches the safety valve setting value, the safety valve will automatically open to release excess pressure, preventing the system from being in danger due to overpressure, providing dual safety guarantees for the entire fire protection system.
7.Applicable Medium:
Widely applicable to oxygen, air, nitrogen, carbon dioxide, and other gases. This makes the valve not only suitable for carbon dioxide fire extinguishing systems but also play an important role in some industrial production, storage, and other related processes involving these gases.
Usage Notes
Before installing the valve, carefully inspect the valve for any damage to its appearance and ensure that the threads are intact to confirm the product quality is up to standard.
When installing, always follow the correct installation method to ensure that the inlet and outlet connections are secure and to prevent leakage.
During use, closely monitor changes in system pressure. If you notice any abnormal pressure, promptly check whether the valve and related equipment are functioning properly.
Regularly perform maintenance on the valve to clean its surface, inspect the seals for integrity, and replace them in a timely manner if necessary.
FAQ
Q: What should I do if there is air leakage at the interface after installation?
A:
- Check if the threads are aligned, and re-wrap the sealing tape (at least 3 times).
- Confirm that the gasket is undamaged.
- If it leaks again, the valve body may be deformed under pressure and needs to be shut down.
Q: The handle won't rotate or is sluggish?
A:
- Reason 1: Internal freezing (caused by CO₂ depressurization and heat absorption) → Thaw the valve body by pouring warm water over it.
- Reason 2: Impurities堵塞 → Shut off the gas source, remove and clean the valve core (do not use grease-based cleaners).
- Reason 3: Overpressure Lockout → Check if the system pressure exceeds 15 MPa.
Q: In case of an unexpected burst, what should be done for emergency response?
A:
- Immediately shut off the gas supply and evacuate the personnel.
- If it is a CO₂ leak, ventilation is necessary to prevent asphyxiation (a concentration of CO₂ higher than 10% is life-threatening).
Q: How can one determine if a valve needs to be replaced?
A: It is recommended to replace the valve in the following cases:
- The valve body is corroded and has perforations or cracks.
- The fluctuation in pressure during regulation is greater than ±1 MPa.
- The sealing area continues to leak air and replacing the gasket has no effect.
Cautionary Notice
⚠ Do not attempt to disassemble the safety valve or the adjusting spring by yourself!Unprofessional operation may lead to the risk of overpressure explosion.
🔧 Regular maintenance recommendations: Check the sealing performance every 6 months and conduct a pressure test once a year.
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