For data centers, electrical rooms, communication centers and control rooms, fire protection must do more than extinguish flames. The system must protect sensitive equipment, reduce downtime, avoid water damage and support safe evacuation procedures. This is why clean agent fire suppression systems are widely used in critical technical environments where conventional water-based protection may not be suitable for the main protected risk.
The ANWETECH AT227SP HFC-227ea Clean Agent Fire Suppression System is an engineered total flooding fire extinguishing system designed for enclosed protected areas. It uses HFC-227ea clean agent, stored in approved containers and released through a calculated pipe network and discharge nozzles to achieve the required design concentration inside the protected space.
ANWETECH manufactured HFC-227ea system units are UL Listed, and the HFC-227ea agent is listed as a UL Recognized Component. The system is designed, installed, inspected, maintained, tested and recharged by qualified trained personnel in accordance with NFPA 2001 clean agent fire extinguishing system requirements.
HFC-227ea is a clean gaseous fire extinguishing agent used in total flooding automatic fire suppression systems. In a total flooding system, the protected room is designed as an enclosed hazard area. When the system is activated, HFC-227ea is discharged into the space through the piping and nozzles to reach the required extinguishing concentration.
Unlike water, foam or dry chemical systems, HFC-227ea does not leave particles, powder or oily residues after discharge. This makes it suitable for areas containing electronic equipment, electrical cabinets, communication equipment, control panels, archives and other sensitive assets.
The ANWETECH AT227SP system is an engineered system. This means the cylinder quantity, agent weight, pipe size, pipe length, nozzle arrangement and discharge design are selected according to the actual protected room dimensions and system layout, not by simple estimation.
Data centers, server rooms, UPS rooms, transformer rooms, switch rooms and control rooms often contain high-value equipment that must remain operational. A fire event in these areas may cause equipment damage, business interruption, data loss, production shutdown or power distribution failure.
For these applications, the fire suppression system should meet several important requirements:
It should extinguish fire quickly inside the protected enclosure.
It should be non-conductive for use around electrical and electronic equipment.
It should leave no residue on sensitive components.
It should support automatic detection and actuation.
It should be suitable for engineered pipe network distribution.
It should be designed according to recognized clean agent system standards.
The ANWETECH AT227SP HFC-227ea system is designed for this type of application. Typical protected areas include electronic data processing rooms, telephone exchanges, communication centers, transformer and switch rooms, control rooms, laboratories, auxiliary power rooms, bank vaults, libraries and flammable liquid storage rooms.
For international projects, certification and standard compliance are often key concerns for consultants, EPC contractors, fire protection contractors and end users.
The ANWETECH HFC-227ea system has the following important standard and approval basis:
HFC-227ea Agent
Underwriters Laboratories Inc. UL Recognized Component
ANWETECH Manufactured System
Underwriters Laboratories Inc. UL Listed
Design and Application Basis
NFPA 2001 Clean Agent Fire Extinguishing Systems
Quality Assurance
ANWETECH equipment is manufactured under an ISO 9001 quality assurance system.
The manual also states that detectors and control panels used together with the ANWETECH HFC-227ea extinguishing system must use UL Listed products. This is important for complete system integrity, especially in projects where the extinguishing system is connected to an automatic fire detection and release control panel.
The ANWETECH AT227SP system can be activated mechanically or electrically.
In a typical automatic system, fire detectors send a signal to the fire alarm and releasing control panel. The control panel then energizes the electrical actuator installed on the master cylinder valve. Once the master cylinder opens, HFC-227ea is released into the pipe network.
For a multi-cylinder system, the master cylinder can use pilot pressure to actuate slave cylinders through pilot hoses and pneumatic actuators. The agent then flows through discharge hoses, check valves, manifold, distribution pipework and nozzles into the protected area.
The basic discharge process is:
Fire is detected inside the protected room.
The releasing control panel receives the fire signal.
The electrical actuator opens the master cylinder valve.
The master cylinder releases HFC-227ea agent.
Slave cylinders are actuated where required.
Agent flows through the pipe network.
Discharge nozzles distribute the agent into the protected area.
The design concentration is achieved to suppress the fire.
The system can also include manual release devices for emergency operation according to project design requirements.
The ANWETECH HFC-227ea fire extinguishing system is built from a complete set of mechanical and discharge components. Depending on the project configuration, the system may include:
HFC-227ea cylinder assembly
Container valve
Internal siphon tube
Cylinder fixing brackets
Pressure gauge
Safety relief device
Discharge pressure switch
Electrical actuator
Pneumatic actuator
Manual actuator
Discharge hose
Valve outlet adaptor
Pilot hose
Bleed valve
Manifold
Manifold bracket assembly
Manifold check valve
Discharge nozzle
Pressure switch connector
Inside warning sign
Outside warning sign
This complete system structure allows the AT227SP system to be used in single-cylinder systems, multi-cylinder systems, manifold systems and non-manifold arrangements depending on the engineering design.
The HFC-227ea agent is stored as a liquefied compressed gas and super-pressurized with dry nitrogen. According to the ANWETECH manual, the AT227SP system includes storage pressure options of:
25 bar at 21°C
42 bar at 21°C
The final selection between system pressure configurations depends on the project design, cylinder arrangement, piping layout, discharge requirements and hydraulic flow calculation. For longer pipe networks or more complex engineered systems, system pressure and flow performance must be evaluated by qualified fire engineers.
HFC-227ea system design is based on the required extinguishing concentration for the protected hazard. The ANWETECH manual states the following minimum design concentration values:
Class A hazard: 6.7%
Class B hazard: 8.7%
Class C hazard: 7.0%
Actual system design must consider the hazard type, protected volume, temperature, altitude correction, enclosure integrity, discharge arrangement and applicable standard requirements. Because the AT227SP system is an engineered system, the design should be completed using proper calculation methods rather than general estimation.
One of the main advantages of HFC-227ea is its suitability for sensitive equipment environments. HFC-227ea is a clean gaseous agent containing no particles or oily residues. After discharge, it leaves no residue or oily deposits on delicate electronic equipment and can be removed from the protected space by ventilation.
This is especially important for:
Data centers
Server rooms
UPS rooms
Telecommunication rooms
Control rooms
Electrical switch rooms
Transformer rooms
Laboratories
Archive rooms
Bank vaults
Where downtime and equipment contamination must be minimized, a clean agent system provides a strong technical advantage compared with residue-producing extinguishing methods.
The ANWETECH AT227SP HFC-227ea Clean Agent Fire Suppression System is suitable for many enclosed critical-risk areas, including:
Data centers require fast fire suppression with minimal impact on electronic equipment. HFC-227ea is non-conductive and residue-free, making it suitable for server cabinets, IT rooms, data processing areas and network equipment rooms.
Electrical rooms often contain switchgear, control panels, UPS systems and power distribution equipment. A clean agent system helps reduce the risk of equipment contamination after discharge.
Industrial control rooms, process control centers and automation rooms require continuous operation and fast fire protection. HFC-227ea total flooding protection can be applied where the room is properly enclosed and engineered for clean agent discharge.
Telecommunication facilities, telephone exchanges and communication equipment rooms need fire protection that does not damage sensitive electronic equipment. HFC-227ea is suitable for this type of enclosed technical environment.
For transformer and power-related rooms, the system design must be reviewed according to the actual hazard, enclosure condition and project standard. Where clean agent protection is suitable, HFC-227ea can provide engineered total flooding protection.
To prepare a proper HFC-227ea system proposal, the following information should be collected before design:
Protected room length, width and height
Room application and fire hazard type
Minimum and maximum room temperature
Altitude of the project site
Ceiling void or raised floor details
Door, window and ventilation openings
Air-conditioning and ventilation shutdown requirements
Number of protected areas
Cylinder room location
Estimated pipe route and pipe distance
Required approval standard
Requirement for UL Listed system
Fire alarm and releasing panel arrangement
Discharge pressure switch and shutdown linkage requirements
This information helps engineers determine the required agent quantity, cylinder size, cylinder quantity, pipe network arrangement and nozzle layout.
A clean agent system must be installed and maintained correctly to ensure reliable operation. The ANWETECH manual includes dedicated sections for container installation, pipe installation, nozzle installation, actuation installation, ancillary equipment installation, system operation, maintenance and recharging.
Important engineering considerations include:
Cylinders should be properly fixed with brackets.
Pipework should be installed according to the system design.
Nozzles should be correctly positioned for agent distribution.
Actuation devices should be installed carefully to avoid accidental discharge.
Pressure switches should be connected for discharge confirmation where required.
Warning signs should be installed inside and outside the protected area.
The system should be periodically inspected by trained personnel.
If the protected room layout or use changes, the system designer should be consulted.
After a system discharge, an authorized installer or system designer should inspect the system before recharge and return to service.
ANWETECH provides an engineered HFC-227ea clean agent fire suppression system for international fire protection projects requiring reliable total flooding protection.
Key advantages include:
UL Listed ANWETECH manufactured system
UL Recognized HFC-227ea agent
NFPA 2001 clean agent system design basis
Engineered total flooding system configuration
25 bar and 42 bar pressure options
Single-cylinder and multi-cylinder system arrangements
Manifold and non-manifold system configurations
Clean, non-conductive and residue-free discharge
Suitable for data centers, electrical rooms, communication centers and control rooms
Complete system components for installation and maintenance
Engineering-focused support for system selection and project application
