Fire dousers are intended to handle explicit sorts of fire. There are six distinct classes of fire and a few unique sorts of fire dousers.

Classes of fire
Class A – fires including strong materials like wood, paper or materials.
Class B – fires including combustible fluids like petroleum, diesel or oils.
Class C – fires including gases.
Class D – fires including metals.
Class E – fires including live electrical contraption. (In fact ‘Class E’ doesn’t exists anyway this is utilized for accommodation here)
Class F – fires including cooking oils like in profound fat fryers.


Water quenchers Water dousers are one of the most practical ways of battling Class A flames, those fuelled by strong materials like paper, wood and materials. There are four distinct kinds of water quenchers: water fly, water shower, water with added substances and water fog or haze. Water stream quenchers work by showering a fly of water at the consuming materials, cooling them and forestalling re-start. They ought not be utilized on live electrical hardware. Water shower quenchers utilize an exceptionally fine splash of water beads, every drop is encircled via air which is non-conductive. Most water shower fire quenchers convey a 35 kV dielectric test endorsement which implies they have been tried on a 35,000 Volt electrical source at one meter. Water quenchers with added substances are water dousers with frothing synthetics added. The water loses its regular surface strain implying that it can douse into the consuming materials all the more actually. Adding the synthetic compounds to the water implies that a more modest douser can create a similar fire rating as a bigger, water just, quencher. Water fog, or haze, dousers apply water as fog, or haze, the beads are a lot more modest than those from the water shower quencher. The more modest the drop, the bigger its surface region according to its size, the speedier the drop dissipates which retains the intensity energy quicker. The disadvantage is the more modest the bead the less it gauges and in this way the less strong the haze of water. All water dousers have a red name. Froth dousers Froth fire quenchers can be utilized on Class An and B fires. They are generally fit to smothering fluid flames like petroleum or diesel and are more flexible than water fly dousers since they can likewise be utilized on solids like wood and paper. The froth smothers fluid flames via fixing the outer layer of the fluid, forestalling combustible fume arriving at the air and keeping the fire from fuel. They are not appropriate for use on free streaming fluid flames. Froth quenchers have a cream name. Powder quenchers Powder dousers are a decent multi-reason fire quencher in light of the fact that they can be utilized on Class A, B and C flames. They can likewise be utilized on flames including electrical hardware in any case, they don’t cool the fire so it can re-touch off. Powder quenchers can likewise make a deficiency of perceivability and may make breathing issues. They are not commonly suggested for use inside structures except if there is definitely no other option. Powder dousers have a blue mark. Carbon dioxide dousers (CO2) CO2 quenchers are great for places with a ton of electrical hardware, for example, workplaces or server rooms since they are protected to use on flames including electrical device. Carbon dioxide quenchers leave no buildup, in contrast to a froth douser. They can likewise be utilized on Class B fires, those including combustible fluids such paraffin or petroleum. CO2 dousers work by covering the fire and removing the stockpile of air. Carbon Dioxide Quenchers (CO2) have a dark mark. Wet substance dousers Wet compound quenchers are appropriate for use on Class F fires including cooking oils and fats, for example, fat, olive oil, sunflower oil, maize oil and spread. They are incredibly powerful, when utilized accurately. The wet compound quickly takes the flares out, cools the consuming oil and synthetically responds to shape a cleanser like arrangement, fixing the surface and forestalling re-start. Despite the fact that they are basically intended for use on Class F fires, cooking oils and profound fat fryers. They can likewise be utilized on Class A flames (wood, paper and textures) and Class B fires (combustible fluids). Wet substance quenchers have a yellow name. Fire covers Fire covers are basically for use on hot oil flames like broiling dish or little profound fat fryers. They can likewise be utilized on somebody whose apparel has burst into flames. They work by covering the fire, halting admittance to the oxygen fuelling it and stifling it.


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