The ANWETECH High-Pressure Carbon Dioxide Automatic Fire Extinguishing System uses CO2 as the extinguishing agent. Carbon dioxide is a colorless, odorless and dry inert gas that vaporizes completely after discharge, leaving no residue.
Because CO2 is non-conductive and does not cause water damage, the system is suitable for protecting electrical equipment, machinery and other areas where residue-free fire suppression is required.
The complete system integrates:
The system can be designed as either a unit independent system protecting a dedicated hazard or a combined distribution system protecting multiple designated areas from a common CO2 cylinder bank.
CO2 vaporizes completely after discharge and does not leave extinguishing residue, making it suitable for equipment protection.
Carbon dioxide is electrically non-conductive and is suitable for many electrical and electronic equipment protection applications.
The system can receive signals from heat and smoke detectors, activate alarms, perform equipment interlocks, start the preset delay and automatically release CO2.
The system supports:
Available for:
The PJ cylinder rack uses a modular structure, allowing different cylinder-bank arrangements according to the required extinguishing agent quantity. The manual provides rack configurations from 2 to 10 cylinders.
The ZECZ45 weighing device continuously monitors cylinder weight and provides an alarm when CO2 agent loss reaches 10% of the charged quantity.
The operating sequence includes fire detection, alarm verification, interlock control, time delay, driving gas release, valve operation, CO2 discharge and discharge pressure feedback.
| Parameter | Specification |
|---|---|
| Product Type | High-Pressure CO2 Automatic Fire Extinguishing System |
| Primary Cylinder Assembly Model | EMP70/5.7 |
| Extinguishing Agent | Carbon Dioxide (CO2) |
| Cylinder Nominal Volume | 70 L |
| CO2 Filling Quantity | 42 kg |
| Storage Pressure at 20°C | 5.7 MPa |
| Maximum Working Pressure | 12.4 MPa |
| Cylinder Strength Test Pressure | 18.6 MPa |
| Cylinder Overall Height | 1550 mm |
| Cylinder Diameter | Ø267 mm |
| Driving Gas | Nitrogen |
| Driving Gas Cylinder Model | EQP4/6 |
| Driving Gas Cylinder Volume | 4 L |
| Nitrogen Filling Pressure at 20°C | 6.0 MPa |
| Driving Cylinder Strength Test Pressure | 10 MPa |
| Solenoid Rated Voltage | DC 24 V |
| Solenoid Rated Current | 1.2 A |
| Main Power Supply | AC 220 V, 50 Hz |
| Standby Power Supply | DC 24 V |
| Monitoring Power Consumption | ≤15 W |
| Alarm State Power Consumption | ≤30 W |
| Environmental Temperature | 0°C to 50°C |
| Relative Humidity | ≤97% |
| Start Modes | Automatic / Electrical Manual / Mechanical Emergency |
| Automatic Discharge Delay | Adjustable 0–30 s |
| Reference Standard | GB 16669-2010 |
The main system technical parameters and EMP70/5.7 cylinder information are specified in the manual.
| Component | Model |
|---|---|
| Extinguishing Agent Cylinder Assembly | EMP70/5.7 |
| Driving Gas Cylinder Assembly | EQP4/6 |
| Weighing Device | ZECZ45 |
| Stainless Steel Selector Valve DN50 | EXZ50/12.4 |
| Stainless Steel Selector Valve DN100 | EXZ100/12.4 |
| Connection Gas Tube | EQG6/6.6 |
| High-Pressure Hose | ERG12/12.4 |
| Safety Valve | AX15A/16.5 |
| Discharge Signal Feedback Device | EXF0.15/12.4 |
| Agent Check Valve | EYD12/12.4 |
| Low-Leakage High-Sealing Valve | DG0.5/6.6 |
| Pilot Gas Check Valve | QD6/6.6 |
| Manifold | QMEJG100/12.4 |
| Cylinder Rack | PJ |
| CO2 Nozzle DN25 | EPT/25 |
| CO2 Nozzle DN32 | EPT/32 |
These are the updated ANWETECH component model codes listed in the manual.
The unit independent configuration provides dedicated CO2 protection for an individual protected area.
The system typically includes:
The combined distribution configuration uses a common CO2 cylinder bank to protect multiple designated areas.
Selector valves such as EXZ50/12.4 or EXZ100/12.4 direct the extinguishing agent to the required protected area.
When the control panel is set to AUTO and a fire is detected, the heat and smoke detectors send alarm signals to the extinguishing control panel.
After logical verification, the system:
Fire Detection → Alarm Verification → Audible & Visual Alarm → Equipment Interlock → Time Delay → Driving Nitrogen Release → Valve Operation → CO2 Discharge
At the end of the preset delay, the driving gas cylinder releases nitrogen to operate the applicable selector valve and CO2 cylinder container valves. CO2 then flows through the high-pressure hose, check valve, manifold, distribution pipework and nozzles into the protected area.
The system can be activated manually from the emergency start/stop station or extinguishing control panel.
If electrical control is unavailable, the system provides a mechanical emergency operating method for releasing the driving nitrogen and operating the required valves.
During the discharge delay, the emergency stop function can prevent the discharge command from being issued when agent release is no longer required.
The High-Pressure CO2 Automatic Fire Extinguishing System can be applied to:
These application examples are specifically identified in the product manual.
The CO2 storage equipment should be installed in a dry, well-ventilated and dedicated equipment room.
Key installation requirements include:
The manual specifies an installation environment of approximately 0°C to 49°C.
Regular inspection is required to maintain system reliability.
The manual specifies:
WARNING: CARBON DIOXIDE CAN CREATE AN OXYGEN-DEFICIENT ATMOSPHERE.
All personnel must evacuate the protected area before CO2 discharge.
After extinguishing agent discharge:
The CO2 system should only be installed, commissioned, operated and maintained by properly trained and qualified personnel.
