High pressure fine water mist, also known as micro water mist droplets, has a pressure greater than 10 MPa. It is built on the basis of a positive displacement pump and usually uses a plunger pump. For safety, economy, and efficiency reasons, the pressure is usually 10~20 MPa. High pressure fine water mist refers to the water mist with a DV0.99<100um generated under a pressure of not less than 10MPa.

Characteristics
1. Safety, environmental protection and water saving: With water as the fire extinguishing agent, it has the characteristics of efficient cooling, blocking radiant heat, detoxification and dust removal. It has no harm to human body, no impact on the environment, and no harmful substances will be decomposed at high temperature. While spray, it will not hurt people in the spraying area, which is conducive to the escape and rescue of on-site personnel. The water consumption is 1% of the water spray, which reduces the volume of the fire water tank (pool) and avoids the secondary disaster caused by a large amount of drainage. Efficient and continuous fire extinguishing: High pressure fine water mist provides convenient water extraction and sustainable fire extinguishing, with fast cooling and rapid oxygen isolation. The cooling speed is more than 100 times faster than general sprinkler systems, effectively preventing the recurrence of fires. 2. Heat blocking and purification effects: Fine water mist has a good shielding effect on thermal radiation, can wash away smoke and toxic gases, and reduce the harm caused by smoke and toxic gases generated during combustion.
3. Good electrical insulation: High voltage fine water mist droplets have a small diameter, ranging from 10 to 100um. After spraying, the droplets are discontinuous and can be suspended in the air for a long time. It takes a considerable amount and a long time to complete the aggregation and condensation of water mist, making it difficult to form a conductive continuous water flow or surface water on the electrode surface. They have excellent electrical insulation and can effectively extinguish fires in live equipment.

Application scenarios
Class A... Solid fire: refers to a solid material fire (surface fire). This substance often has organic properties and generally produces scorching residues during combustion, such as wood, coal, cotton, wool, hemp, paper, and other fires.
Class B... liquid fires: liquid fires and fires involving melting solid substances, such as gasoline, kerosene, diesel, crude oil, methanol, ethanol, asphalt, etc
Paraffin and other fires.
Class C - Gas fires: such as fires caused by gas, natural gas, methane, ethane, propane, hydrogen, etc.
Class E... live fire extinguishing: electrical equipment such as generator rooms, transformer rooms, distribution rooms, instrument rooms, and electronic computer rooms that cannot be powered off in a timely manner or are not suitable for live combustion fires.
Especially effective in protecting high-risk situations. Such as tunnels, urban corridors, lithium battery workshops, lithium battery warehouses, tobacco, electricity, railways, schools, and communities
The petrochemical industry, military equipment, coal industry, pharmaceutical and food processing industries, ancient buildings, archives, commercial and civil buildings, subways, and large transportation vehicles.
Surface vessels, power and electronics industries, fire brigades, and forests.
The scope of inapplicability is that it cannot be directly used to extinguish fires that cause strong chemical reactions, combustion, explosion, or the production of harmful substances when in contact with water.