Outdoor foam fire extinguishing equipment foam hydrant ground hydrant manufacturer direct sales

Description :

　　Location of fire hydrants

　　1. Fire hydrants should be placed in public shared spaces such as corridors or halls, usually within the walls of these spaces, and should not be decorated in any way. They should be clearly marked (indicating "fire hydrant") and no obstacles should be placed in front of them to avoid affecting the opening of the fire hydrant door.

　　2. Fire hydrants are generally not installed in rooms (such as private rooms), which does not comply with fire safety regulations and is not conducive to timely rescue by firefighters.

　　Water is a commonly used fire extinguishing agent, with convenient application, abundant sources, and low price. Therefore, it has been widely used in fire scenes.

　　Water cannot extinguish fires caused by the following substances and equipment: fires caused by alkali metals, fires caused by carbonization, hydrogenation, and yellowing; Sulfuric acid, nitric acid, and hydrochloric acid should not be extinguished with strong water; Light and insoluble in flammable liquids (excluding oil and heavy oil); Molten iron and steel; When there is a fire in high-voltage electrical equipment without good grounding equipment or without cutting off the current.

　　Foam is a group of bubbles with small volume and surrounded by liquid on the surface, which only fights fires caused by flammable liquid and gas. The foam used in China includes chemical foam and air mechanical foam (air foam for short).

　　The main principle of foam fire extinguishing is that foam is lighter than flammable and combustible liquids, and it covers the liquid surface on fire to prevent liquid vapor from entering the combustion area, prevent air from contacting the burning surface, prevent heat from conduction to the liquid surface, and absorb certain heat, thus stopping combustion.

　　Foam fire hydrant is mainly composed of flange, cylinder, ball valve, internal connection, fire pipe thread and end cover. The ground foam fire hydrant can be divided into three models: PS80-65X2, PS100-65X2 and PS150-65X2 according to the flange interface. The rated working pressure of foam fire hydrant is within 1.6MPa. Foam fire hydrant is one of the important devices in the foam fire extinguishing system, especially suitable for the production, storage and use of large areas of flammable liquids and flammable liquids with fire hazards.

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• Outdoor foam fire extinguishing equipment