Fire extinguishers are pieces of equipment used for active fire protection. They are used to extinguish or control small-scale fires, usually in emergency situations. The devices should only be used in minor situations and not in cases where fires have grown out of control. When in need of quality fire extinguisher Massachusetts offers a nice place to pay a visit.
The device consists of a hand-held cylindrical pressure vessel that contains a fire extinguishing agent, which is released when the device is operated. There are also devices that do not consist of cylindrical pressure vessels, but these ones are less common. In most countries, especially the United States, commercial and industrial buildings are required to have some kind of device for extinguishing fires.
Annual inspection and servicing of all extinguishers installed in buildings is required in most jurisdictions. The inspection may have to be done more regularly in some places. There is a mark that is placed on the device to show the kind of service carried out by the service company. Services carried out usually include replacement, inspection, and recharging among others.
Generally, there are two kinds of extinguishers in use currently. The two types are cartridge-operated and store-pressure models. In stored pressure gadgets, the firefighting agent and the expellant are stored within the same chamber. Propellants vary with the kind of agent used. Nitrogen is the main propellant used in dry chemical extinguishers. On the other hand, air is used in foam and water extinguishers. Stored pressure varieties are more common than cartridge-operated models.
The storage of the firefighting agent and expellant is done in the same container in cartridge-operated extinguishers. The expellant gets exposed to extinguishing agents when the operator punctures the cartridge. Cartridge-operated extinguishers are heavily used in industrial settings where they are used more heavily than in ordinary settings. The simpler and prompter operation of cartridge-operated extinguishers is what makes them to be used heavily in industrial settings. Recharging and discharging happen at a higher speed.
Cartridge-operated models make use of compressed carbon dioxide and not nitrogen as is the case with stored pressure models. The cartridge-operated extinguishers are made in many forms in the US, including dry chemical, dry powder, foam, water, and wetting agent. According to another classification of extinguishers, there are two types, that is, cart-mounted and hand-held varieties. Those that are mounted onto carts are also referred to as wheeled extinguishers.
The models meant to be held in the hands are very light, with weights ranging from 0.5 to 14 kgs. This makes them easily portable. The wheeled models are much heavier, usually weighing in excess of 23 kgs. These models are installed at airport runways, marinas, heliports, construction sites, and docks among similar sites. Portability is improved by incorporating handles for pulling them.
The location where handheld devices are installed in buildings are usually easily accessible by anybody. Typically, they are placed somewhere on the walls of places with high traffic. Watercraft, aircraft, and automobiles must also be installed with the devices in most jurisdictions. There are standards governing the height at which the equipment can be installed along the walls.
The device consists of a hand-held cylindrical pressure vessel that contains a fire extinguishing agent, which is released when the device is operated. There are also devices that do not consist of cylindrical pressure vessels, but these ones are less common. In most countries, especially the United States, commercial and industrial buildings are required to have some kind of device for extinguishing fires.
Annual inspection and servicing of all extinguishers installed in buildings is required in most jurisdictions. The inspection may have to be done more regularly in some places. There is a mark that is placed on the device to show the kind of service carried out by the service company. Services carried out usually include replacement, inspection, and recharging among others.
Generally, there are two kinds of extinguishers in use currently. The two types are cartridge-operated and store-pressure models. In stored pressure gadgets, the firefighting agent and the expellant are stored within the same chamber. Propellants vary with the kind of agent used. Nitrogen is the main propellant used in dry chemical extinguishers. On the other hand, air is used in foam and water extinguishers. Stored pressure varieties are more common than cartridge-operated models.
The storage of the firefighting agent and expellant is done in the same container in cartridge-operated extinguishers. The expellant gets exposed to extinguishing agents when the operator punctures the cartridge. Cartridge-operated extinguishers are heavily used in industrial settings where they are used more heavily than in ordinary settings. The simpler and prompter operation of cartridge-operated extinguishers is what makes them to be used heavily in industrial settings. Recharging and discharging happen at a higher speed.
Cartridge-operated models make use of compressed carbon dioxide and not nitrogen as is the case with stored pressure models. The cartridge-operated extinguishers are made in many forms in the US, including dry chemical, dry powder, foam, water, and wetting agent. According to another classification of extinguishers, there are two types, that is, cart-mounted and hand-held varieties. Those that are mounted onto carts are also referred to as wheeled extinguishers.
The models meant to be held in the hands are very light, with weights ranging from 0.5 to 14 kgs. This makes them easily portable. The wheeled models are much heavier, usually weighing in excess of 23 kgs. These models are installed at airport runways, marinas, heliports, construction sites, and docks among similar sites. Portability is improved by incorporating handles for pulling them.
The location where handheld devices are installed in buildings are usually easily accessible by anybody. Typically, they are placed somewhere on the walls of places with high traffic. Watercraft, aircraft, and automobiles must also be installed with the devices in most jurisdictions. There are standards governing the height at which the equipment can be installed along the walls.
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