- Foam systems
- Inert Gas systems
- Dry chemical systems
- CO2 systems
- Sprinkler and deluge   systems
- Detection and fire   fighting systems
- Various equipment
- Foam solution

- Powder units
- Mobile and portable   foam equipment

- FM200 systems
- Water mist systems
- Valves and hydrants



The SIA/JANUS HPCO2 systems use high pressure Carbon Dioxide as extinguishing agent.
CO2 gas is a dry, inert, non-corrosive extinguishing agent particularly suited to environments which require electrical non-conductivity and where the clean-up following the use of other extinguishing agents would be particularly problematical.
The systems consist of groups of cylinders containing liquid CO2 stored in a fixed support rack.
The gas is delivered through discharge nozzles connected to the cylinders with piping.
The systems are completed with hight and low discharge pressure switches, electrical actuators
(automatic or mannal), pneumatical ctuators, retention valves, relief valves, manometers, flex hoses
and alI connections necessary for assembly of the system.

HPCO2 cylinders may be installed in a main/reserve arrangement. In a main/reserve system, the number of cylinders required to protect a hazard are installed as the main cylinders.
A second set of reserve cylinders is installed and connected to the same discharge piping as the main cylinders.
This allows for cylinders to be removed for maintenance without taking the HPCO2 system offline.
Discharge preference is shifted between the main and reserve cylinders using the Janus Fire Systems™ MRS-1 Main/Reserve Transfer Station (refer to datasheet DS1066).
Inline check valves are implemented in the discharge manifold to prevent the discharge flow of the main cylinders from actuating any reserve cylinder valves or vice versa.


Selector valve arrangements are implemented when protecting two or more separate hazards or hazard zones with the same HPCO2 cylinders.
Pneumatically actuated selector valves fitted with solenoid valves are installed between the discharge manifold and discharge nozzles.
When the HPCO2 cylinders are actuated, pneumatic pressure from the discharge manifold is regulated down to 100 psi (6.89 bar) and directed into the solenoid valve inlet ports of each selector valve.
Only the solenoid valve electrically actuated by the releasing panel will then allow this pressure to pass through to the selector valve pneumatic actuation port causing that selector valve to open and allow CO2 discharge into the selected hazard zone.


Co2 Storage Tank - Low Pressure

Bottle refill system
S.I.A. srl Via Aldo Moro, 6 20010 Pogliano Milanese (MI) - ITALY - P.Iva 06529110964