Fire Proection Systems
Each system design is unique, depending on various factors which may include:
- Type of Business / Occupancy
- Existing Fire Protection Infrastructure
- Occupancy Classification as legislated
- Immediate Risks – if any
- Category of Goods Stored / height of goods stored etc.
- Access / Egress Routes and accessibility
- Racking / Shelving etc. – if applicable
- Building Structure / Size of the building (Roof, Ceiling heights)
- Building Materials
- Location / Position of building / Proximity to other structures
- Related Exposures / Risks – if any
- Ventilation Requirements
All these factors determine the Design Philosophy / Fire Solution or combination of systems required to offer the client an acceptable / compliant solution. The services rendered by WCS Fire include information gathering, system design, plans, drawings, hydraulic calculations, cutting lists etc.
This in-turn will possibly lead to Fire Water Pump / Tank Design specifications according to Legislative and / or Regulatory compliance as accepted by the Fire Industry governing authorities.
Installations are done by professionals within the guidelines of Occupational Health and Safety legislation.
Automatic Sprinkler Installations / Systems
Conventional Wet Sprinkler Systems
- A wet pipe system is a standard sprinkler system permanently charged with water under pressure both above and below the Installation Alarm / Control Valve
Alternate Wet and Dry Pipe Systems
A Composite Valve is suitable for Wet, or Dry or alternate operation whereas a Dry Alarm Valve is suitable for a Dry System or an alternate installation.
During winter months the system piping above the Composite or Alarm Valve (dry pipe), valve is charged with air under pressure, and the remainder of the system below the Valve with water under pressure; and at other times of the year the system operates as a wet system.
Dry Pipe Sprinkler Systems
A Dry Pipe system is a standard Sprinkler system in which the system pipework is permanently charged with air under pressure above the Alarm Valve, (dry pipe), and with water under pressure below the valve.
Early Suppression Fast Response (ESFR) System
Early Suppression Fast Response (ESFR) Sprinkler System refers to both concept and type of Sprinkler. “The concept is that fast response of sprinklers can produce an advantage in a fire if the response is accompanied by an effective discharge density – that is, a sprinkler spray / discharge capable of fighting it’s way down through the fire plume in sufficient quantities / volume / pressure to suppress the burning fuel load / package.”
The sprinkler that was developed for this concept was created for use in high rack storage.
Deluge Installations / systems are systems that open sprinklers or nozzles controlled by a quick opening valve (Deluge Valve) which is operated by a system of approved heat detectors or sprinklers installed in the same area as the open sprinklers.
This system is necessary to supply water continuously over an entire area where intensive heat might originate for cooling / extinguishing purposes.
Drencher systems can be used for the protection of walls, structures etc.
- If a wall has a fire resistance rating not less than that is required in terms of this standard, only the openings in that wall require protection by means of drenchers.
- If a wall has a fire resistance rating less than that required in terms of this standard, drenchers should be located at roof level within the heat collection area.
- Any zone that does not exceed the design capacity of the installation will be acceptable.
FIRE HYDRANT INSTALLATIONS / SYSTEMS
Fire Hydrant Systems is a supply line of water and can be fed from Municipal Water Supplies or from Fire Pumps and Water Tanks. A Fire Hydrant is a connection point by which Fire Fighters can connect / tap into a water supply. The water is used to contain / extinguish the fire. The system is manually operated by opening a valve enabling water to flow at pre-determined flows and pressures.
FIRE HOSE REEL INSTALLATIONS / SYSTEMS
Fire Hose Reel Systems is a supply line of water and can be fed from Municipal Water Supplies or from Fire Pumps and Water Tanks. These Fire Hose Reels need to be located strategically as legislated internally and externally of the building as stipulated to provide proper / adequate protection / coverage of water to combat a fire. The system is manually operated by opening a valve enabling water to flow at pre-determined flows and pressures.