Voice Evacuation

A voice evacuation life safety system is often a more effective, faster and safer means of evacuating and/or messaging occupants in an emergency. Integrated Voice Evacuation and Messaging system is designed for distributed intelligence and ultimate survivability. Fully integrated into the line of intelligent fire alarm panels, this modular voice evacuation system adds the benefits of voice messaging to any size application. Building occupants receive clear concise voice instructions pertaining to their specific location, proximity to the situation and emergency strategy – all delivered at the same time!

Built – In Redundancy

A back-up is integrated into each voice evacuation amplifier for increased survivability, risk reduction and equipment savings.

Virtually Unlimited Messages

Each amplifier’s messages are customizable. Amplifiers can operate independently allowing for each amplifier to simultaneously play unique pre-recorded messages or alert tones.

Fully Digital

Evacuation or other response strategy messages are clear, distinct and easily customizable.
The fire alarm system continues to operate effectively, even if one component fails for any reason.

Valves

Gate Valve.

Mainly for on/off control, with low pressure drop. Gate valves are primarily designed to start or stop flow, and when a straight-line flow of fluid and minimum flow restriction are needed. In service, these valves generally are either fully open or fully closed. The disk of a Gate valve is completely removed when the valve is fully open; the disk is fully drawn up into the valve Bonnet. This leaves an opening for flow through the valve at the same inside diameter as the pipe system in which the valve is installed. A Gate valve can be used for a wide range of liquids and provides a tight seal when closed.

Butterfly Valve.

Butterfly valve used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

Alarm Check Valve.

The alarm check valve is a water flow alarm device designed for vertical installation in the main supply to a wet pipe sprinkler system. When a flow of water from the system equals or exceeds that of a single sprinkler, the valve is to actuate a fire alarm. It is designed to hold back water pressure in the piping system until the sprinkler is activated, to be used in wet pipe sprinkler installations in buildings not subjected to freezing temperatures. Alarm valve includes trim packages valves, Gauges, Pressure Switch, Fittings & Nipples to provide Retard Chamber connection, Drain Connections & Alarm test by pass.

Zone Control Valve.

Zone Control Valve is a system designed to separate the area in case of maintenance and to get the indication of fire zone on a combination of Butterfly valve, Flow Switch, Pressure Gauge and Test & Drain Valves. A floor or zone control valve closes off all flow into or out of the fixed system zone it controls. They would be used for maintenance, to shut off a system that has tripped, or avoiding flow if an open head system. Since all flow is stopped, including fire suppression flows, the valves must be inspected regularly and monitored. In a large structure the valves would have tamper switches to make lifeeasier on the monitors. The use of an OS&Y valve, mounted where easily seen would also be useful.

The check valve prevents reverse flow in the system, whether from a potable water system in the building back into the distribution main or from thefire suppression systems into the water main. Because fire apparatus, connected to the FDC may provide more pressure than the main a check valveor backflow preventer is installed between the main and the FDC. There may be check valves (clappers) in the FDC to prevent water being pumped infrom exiting a used port. Depending on the design of the system checks may be necessary in the riser or laterals to prevent water flowing in the system from causing a back flow in certain parts of the system. While not likely it is possible for water in sinks and storage tanks to drain into the rest of the piping if a check valve is not in place.

Non – Return Valve

A non-return valve or one-way valve is that normally allows fluid (liquid or gas) to flow through it in only one direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave.

An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or

Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal

Hose Reel & Landing Valve

Fire Detection System

Hose Reel is a cylindrical spindle made of either metal, fiberglass, or plastic and is used for storing a hose. The most common styles of hose reels are spring driven (which is

is a cylindrical spindle made of either metal, fiberglass, or plastic and is used for storing a hose. The most common styles of hose reels are spring driven (which is self retracting), hand crank, or motor driven. Hose reels are categorized by the diameter and length of the hose they hold, the pressure rating and the rewind method. Hose reels can either be fixed in a permanent location, or portable and attached to a truck, trailer, or cart. Landing Valve Globe Valves that are installed on hydrants, a branch and hose

Landing Valve

Globe Valves that are installed on hydrants, a branch and hose is connected to a coupling on it.

Breeching Inlet

Breeching inlets are suitable for installation on dry risers only, in a building for firefighting purposes, fitted with inlet connection at fire brigade access level and outlet connection at specified points, which is normally dry but capable of being charged with water by pumping from the service appliances. The Breeching inlets are manufactured to comply BS 5041 Part-3: 1975 standard comprising of Male Instantaneous connections complying with BS 336:1989, drain valves PN16 rated and non-return valves

Portable Fire Extinguishers

A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user (i.e., no escape route, smoke, explosion hazard, etc.), or otherwise requires the expertise of a fire department. Typically, a fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent which can be discharged to extinguish a fire.

There are two main types of fire extinguishers, stored pressure and cartridge-operated. In stored pressure units, the expellant is stored in the same chamber as the firefighting agent itself. Depending on the agent used, different propellants are used. With dry chemical extinguishers, nitrogen is typically used; water and foam extinguishers typically use air. Stored pressure fire extinguishers are the most common type. Cartridge-operated extinguishers contain the expellant gas in a separate cartridge that is punctured prior to discharge, exposing the propellant to the extinguishing agent. This type is not as common, used primarily in areas such as industrial facilities, where they receive higher-than-average use. They have the advantage of simple and prompt recharge, allowing an operator to discharge the extinguisher, recharge it, and return to the fire in a reasonable amount of time.

Pipes & Fittings

Pipe fitting is the occupation of installing or repairing piping or tubing systems that convey liquid, gas, and occasionally solid materials. This work involves selecting and preparing pipe or tubing, joining it together by various means, and the location and repair of leaks.

Pipe fitting work is done in many different trades: oil & gas, firefighting, Plumbing, HVAC, manufacturing, fire prevention, and many others. Fitters work with a variety of pipe and tubing materials including several types of plastic, copper, steel, iron, aluminum, clay, and lead.

HDPE piping is performed in two ways i.e. Heat Fusion & Electro Fusion.

Heat Fusion

Heat fusion (sometimes called heat welding, butt welding or simply fusion) is a welding process used to join two different pieces of a thermoplastic. This process involves heating both pieces simultaneously and pressing them together. The two pieces then cool together and form a permanent bond. When done properly, the two pieces become indistinguishable from each other. Dissimilar plastics can result in improper bonding.

This process is commonly used in plastic pressure pipe systems to join a pipe and fitting together, or to join a length of pipe directly to another length of pipe. Generally, polyolefin (such as polypropylene, polyethylene, and polybutylene) are used for these applications.

But welding is usually performed using one of several methods. The first, and most common, is butt welding or butt fusion, which is a type of hot plate welding. This technique involves heating two planed surfaces of thermoplastic material (typically polyethylene) against a heated surface. After a specified amount of time, the heating plate is removed and the two pieces are pressed together and allowed to cool under pressure, forming the desired bond. Butt welding outside of manufacturing is usually performed to join pipes.

Electro Fusion

Electro fusion is a method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together. The pipes to be joined are cleaned, inserted into the electro fusion fitting (with a temporary clamp if required) and a voltage (typically 40V) is applied for a fixed time depending on the fitting in use. The built in heater coils then melt the inside of the fitting and the outside of the pipe wall, which weld together producing a very strong homogeneous joint. The assembly is then left to cool for a specified time.

Fire Hydrant

Fire Hydrant is an Exterior Valved Connection to water supply that provides one or more hose connections. As a system it is a water supply piping network system having one or more outlets and that is used to supply hose & fire department pumpers with water on private hydrants are supplied by a private service main that begins at the point of service, usually at a manually operated valve near the property line.

Fire Hydrant system can also be a Fire Hydrants distributed through piping network with permanent water tank & pumps for the pressurized water supply which is normally a requirement for private property protection without public water system.

Fire Fighting Pumps

Fire Pumps

Fire pumps may be powered either by an electric motor or a diesel engine, or, occasionally a steam turbine. If the local building code requires power independent of the local electric power grid, a pump using an electric motor may utilize, when connected via a listed transfer switch, the installation of an emergency generator.

The fire pump starts when the pressure in the fire sprinkler system drops below a threshold. The sprinkler system pressure drops significantly when one or more fire sprinklers are exposed to heat above their design temperature, and opens, releasing water. Alternately, other fire hoses reels or other firefighting connections are opened, causing a pressure drop in the fire fighting main.

Types of pumps used for fire service include: horizontal split case, vertical split case, vertical inline, vertical turbine, and end suction.

Jockey Pump

A jockey pump is a small pump connected to a fire sprinkler system and is intended to maintain pressure in a fire protection piping system to an artificially high level so that the operation of a single fire sprinkler will cause a pressure drop which will be sensed by the fire pump automatic controller, causing the fire pump to start. The jockey pump is essentially a portion of the fire pump’s control system.

A jockey pump is a small pump connected to a fire sprinkler system and is intended to maintain pressure in a fire protection piping system to an artificially high level so that the operation of a single fire sprinkler will cause a pressure drop which will be sensed by the fire pump automatic controller, causing the fire pump to start. The jockey pump is essentially a portion of the fire pump’s control system.

Deluge System

“Deluge” systems in which all sprinklers connected to the water piping system are open, in that the heat sensing operating element is removed, or specifically designed as such. These systems are used for special hazards where rapid fire spread is a concern, as they provide a simultaneous application of water over the entire hazard. They are sometimes installed in personnel egress paths or building openings to slow travel of fire (e.g. openings in a fire-rated wall).

Water is not present in the piping until the system operates. Because the sprinkler orifices are open, the piping is at atmospheric pressure. To prevent the water supply pressure from forcing water into the piping, a “deluge valve” is used in the water supply connection, which is a mechanically latched valve. It is a non-resetting valve, and stays open once tripped.

Because the heat sensing elements present in the automatic sprinklers have been removed (resulting in open sprinklers), the deluge valve must be opened as signaled by a fire alarm system. The type of fire alarm initiating device is selected mainly based on the hazard (e.g. smoke detectors, heat detectors, or optical flame detectors). The initiation device signals the fire alarm panel, which in turn signals the deluge valve to open. Activation can also be manual, depending on the system goals. Manual activation is usually via an electric or pneumatic fire alarm pull station, which signals the fire alarm panel, which in turn signals the deluge valve to open.

Operation – Activation of a fire alarm initiating device, or a manual pull station, signals the fire alarm panel, which in turn signals the deluge valve to open, allowing water to enter the piping system. Water flows from all sprinklers simultaneously.

Emergency & Exit Light

Central Battery System

From an aesthetics point of view, the self-contained emergency luminaire is often frowned upon by architects and building users, who prefer to see a single type of luminaire utilised for both normal and emergency lighting. Probably the most elegant way of achieving this goal is to select a number of mains luminaires for emergency use and power them from a central battery system.The output from such systems can be controlled and used exactly like the normal mains supply, so different types of system can be configured to match customers’ requirements. In the case of AC/AC systems, the output can be connected directly to suitably designed mains luminaires so that, without having to make any modification to the luminaires, they operate at full light output under both ‘mains healthy’ and ‘mains failed’ conditions. This enables the emergency lighting system to be extremely unobtrusive and versatile. Central battery systems can be used to supply either normal mains luminaires or special low-voltage luminaires. Because many of these systems power the luminaires either at full light output or at levels only slightly lower than the lamps’ nominal rating, they are particularly suitable for use when higher light outputs are required, e.g. open areas and when ceilings are more than 2.5m high. Battery life in a central system is maximised by sophisticated charging techniques and is usually at least 10 years. When replacement is eventually necessary, this is a quick and simple operation that avoids the disruption caused by having to dismantle numerous fittings in public areas.

Fire Detection System

A key aspect of fire protection is to identify a developing fire emergency in a timely manner, and to alert the building›s occupants and fire emergency organizations. This is the role of fire detection and alarm systems. Conventional system one or more circuits are routed through the protected space or building. Along each circuit, one or more detection devices are placed. Selection and placement of these detectors is dependent upon a variety of factors including the need for automatic or manual initiation, ambient temperature and environmental conditions, the anticipated type of fire, and the desired speed of response. One or more device types are commonly located along a circuit to address a variety of needs and concerns. Addressable or “intelligent” systems represent the current state-of-the-art in fire detection and alarm technology. Unlike conventional alarm methods, these systems monitor and control the capabilities of each alarm initiating and signaling device through microprocessors and system software. In effect, each intelligent fire alarm system is a small computer overseeing and operating a series of input and output devices.The addressable system also monitors the condition of each circuit, identifying any faults which may occur. One of the advancements offered by these systems is their ability to specifically identify where a fault has developed. Therefore, instead of merely showing a fault along a wire, they will indicate the location of the problem. This permits faster diagnosis of the trouble, and allows a quicker repair and return to normal.

Gas Suppression System

FM 200 System

FM200 fire suppression is also known as HFC227ea. FM200 is a waterless fire protection system, it is discharged into the risk within 10 seconds and suppresses the fire immediately.

The main advantage of FM200 fire suppression is the small amount of agent required to suppress a fire. This means fewer cylinders, therefore less wasted space for storage of FM200 cylinders. FM200 systems reach extinguishing levels in 10 seconds or less, stopping ordinary combustible, electrical, and flammable liquid fires before they cause significant damage. FM200 extinguishes the fire quickly, which means less damage, lower repair costs. Like any other fire suppression system, FM200 systems are designed with an extra margin of safety for people. Refilling FM200 is simple and cost effective, therefore, it also means less downtime and disruption to your business.

FM200 is classed as a clean agent which means that it is safe to use within occupied spaces. The safety of FM200 fire suppression environments is proven in over a decade of real-world experience and validated by extensive scientific studies. FM200 systems take up less storage space than most other fire suppressants.

In addition to the fire protection benefits of using FM200, the environment will benefit as well. FM200 fire suppressant does not deplete stratospheric ozone, and has minimal impact on the environment relative to the impact a catastrophic fire would have. FM200 fire suppression is a solution that is already working in more than 100 thousand applications, in more than 70 nations around the world.

Sprinklers System

Fire Detection System

Each closed-head sprinkler is held closed by either a heat-sensitive glass bulb or a two-part metal link held together with fusible alloy. The glass bulb or link applies pressure to a pip cap which acts as a plug which prevents water from flowing until the ambient temperature around the sprinkler reaches the design activation temperature of the individual sprinkler head. In a standard wet-pipe sprinkler system, each sprinkler activates independently when the predetermined heat level is reached. Because of this, the number of sprinklers that operate is limited to only those near the fire (in reality, normally one or two will activate), thereby maximizing the available water pressure over the point of fire origin. This also minimizes the water damage to the building.A sprinkler activation will do less damage than a fire department hose stream, which provide approximately 900 liters/min (250 US gallons/min). A typical sprinkler used for industrial manufacturing occupancies discharge about 75-150 litres/min (20-40 US gallons/min). However, a typical Early Suppression Fast Response (ESFR) sprinkler at a pressure of 50 psi (340 kPa) will discharge approximately 100 US gallons per minute (0.0063 m3/s). In addition, a sprinkler will usually activate between one and four minutes, whereas the fire department typically takes at least five minutes to arrive at the fire site after receiving an alarm, and an additional ten minutes to set up equipment and apply hose streams to the fire. This additional time can result in a much larger fire, requiring much more water to extinguish .Sprinklers may be required to be installed by building codes, or may be recommended by insurance companies to reduce potential property losses or business interruption., dormitories, and hospitals