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» Ιστολόγιο » FAQ For Gaseous Fire Suppression System FM200 Based on Extinguishing Agent HFC-227ea

FAQ For Gaseous Fire Suppression System FM200 Based on Extinguishing Agent HFC-227ea

October 21, 2022

Hereby we list our Gaseous fire extinguishing systems are generally distinguished by the name of the extinguishing agent, the common ones are heptafluoropropane, IG541, ΙΓ55, ΙΓ01, NOVEC1230 and carbon dioxide; in case of fire, there are many unceertain factors, and engineers need to comprehensively analyze all factors to select the applicable installation scheme of gas suppression system, hereby below are some frequency asked questions about gas fire extinguishing systems, especially heptafluoropropane systems.

QUESTION 1: WHY PEOPLE SELECT HFC-227EA HEPTAFLUOROPROPANE GAS FIRE EXTINGUISHING SYSTEM

Through various comparisons, we can further determine which gas to use by taking the nature of the gas as a necessary factor and then make choice, Through analysis and market research it is found that heptafluoropropane is the most stable gas, which is clean and pollution-free. Therefore, most of the gas fire extinguishing systems in the market are heptafluoropropane.

QUESTION 2: WHY FM200 FIRE EXTINGUISHING SYSTEM CAN REPLACE HALON SYSTEM

Heptafluoropropane fire extinguishing system is a new type of gas fire extinguishing system. Based on the extensive use of carbon dioxide fire extinguishing system, it has promoted the extensive use of heptafluoropropane and IG541 gas.

Heptafluoropropane fire extinguishing system is a new type of gas fire extinguishing system. Based on the extensive use of carbon dioxide fire extinguishing system, it has promoted the extensive use of heptafluoropropane and IG541 inert gas fire extinguishing system, Today, heptafluoropropane have become the world’s major halothane 1301 gas alternative products.

The heptafluoropropane fire extinguishing sysem can replace HALON1301 mainly because of the following two reasons:

The heptafluoropropane fire extinguishing system can replace HALON1301 mainly because of the following three reasons:

  • The fire extinguishing efficiency of heptafluoropropane is 1.6 times that of 1301.
  • The pipes of heptafluoropropane fire extinguishing system and HALON1301 can be shared and common.
  • FM200 system is clean without pollution to the environment, and will not damage the amosphere.

QUESTION 3: WHICH TYPE OF FIRES ARE SUITABLE FOR GAS FIRE EXTINGUISHING SYSTEM(Επταφθοροροπανη)?

The gas fire extinguishing system is applicable to the following fires:

  • Electrical fires, Κατηγορία Ε.
  • Solid surface fire, Κατηγορία Α.
  • Liquid Fire, Κατηγορία Β.
  • Gas fire which can cut off the gas source before extinguishing, Κατηγορία Γ.

The gas fire extinguishing system (επταφθοροροπανη) is not suitable for fighting the following fires:

  • Fire caused by nitrocellulose, sodium nitrate and other oxidants or chemicals containing oxidants.
  • Fire of potassium, magnesium, sodium, titanium, zirconium, uranium and other active metals.
  • Potassium hydride, sodium hydride and other metal hydride fires.
  • Fire caused by self decomposing chemical substances such as hydrogen peroxide and hydrazine.
  • Deep fire of combustible solid materials.

QUESTION 4: WHAT TO DO WHEN HEPTAFLUOROPROPANE FIRE EXTINGUISHING SYSTEM IS USED UP?

The engineeering companies often ask us a question, Αυτό είναι: when the heptafluoropropane fire extinguishing system is used up, how do we deal with it? για την ερώτηση αυτή, our answer as below:

After the heptafluoropropane fire extinguishing system is sprayed, the remaining fire extinguishing agent bottle groups can still be used after being filled, since there is not have fire extinguishing system in the protection area at this time, it is necessary to contact the manufacturer as soon as possible to avoid greater losses.

The heptafluoropropane agent needs to be filled by a special device, Generally its bottle group needs to be disassembled and returned to the original factory. it should be noted that the disassembly and assembly of the fire extinguishing bottle group should be carried out by personnel specialized in the fire protection industry. after the heptafluoropropane fire extinguishing system is discharged, it is generally necessary to recover the fire extinguishing system as soon as possible, so the manufacturer is required to respond quickly.

QUESTION 5: HOW OFTEN SHOULD HEPTAFLUOROPROPANE FIRE EXTINGUISHING SYSTEM BE FILLED?

First of all, if leakage, pressure corrosion and other conditions are found, it is necessary to detect and inflate the equipment as soon as possible to ensure the normal operation of the fire extinguishing system, otherwise, in case of fire, the loss is incalculable.

Δεύτερον, the steel cylinder (bottle) of the heptafluoropropane fire extinguishing system should be tested once every three years, and the corresponding test report should be issued, because of the uncertainty of the use environment; it is easy to lead to corrosion of parts and lead to leakage of the system. If the pressure is abnormal during the three years, leakage and other phenomena occur, it is necessary to timely test, repair, repressurize and inflate; If there is no specific time limit, the gas should be tested as long as there is leakage.

According to the regulations of cylinder safety supervision regulations

  • Gas cylinders containing nitrogen, sulfur hexafluoride, inert gas and non corrosive high-purity gas with purity not less than 99.999% shall be inspected once every 5 χρόνια.
  • Gas cylinders, submersible gas cylinders and gas cylinders that are often in contact with seawater containing gases that can cause corrosion to the cylinder materials shall be inspected once every two years.
  • Gas cylinders containing other gases shall be inspected once every three years.

QUESTION 6: WHY DO PEOPLE SHOULD EVACUATE WHEN HEPTAFLUOROPROPANE GAS IS RELEASING?

Before the HFC-227ea gas is extinguishing, make sure that all personnel are evaculated from the protection area,

Before extinguishing and spraying heptafluoropropane gas, make sure that all personnel are evacuated from the protection area, Although it is pointed out in the Code for Design of Gas Extinguishing (GB50370-2005) that the design concentration in accordance with the design specification is harmless to human beings, as the fire situatiion is extremely complex, and because of some characteristics of heptafluoropropane gas, the fire extinguishing system is not allowed to spray when there are people in the protection area.

QUESTION 7: WHAT ARE THE CONTROL METHODS OF HEPTAFLUOROPROPANE?

The control mode of FM200 are: Αυτόματος, manual and mechanical emergency start.

QUESTION 8: Is heptafluoropropane harmful to human body?

Researchers have done experiments with mice, and get 2 important data: NOAEL and LOAEL, the result shows that its non-toxicty, it does little harm to the human body, όμως, it can not be ignored whether heptafluoropropane will produce adverse chemical reactions after exposed to high temperatures.

QUESTION 9: DOES THE PROTECTION AREA WHERE HEPTAFLUOROPROPANE IS LOCATED NEED PRESSURE RELIEF AFTER IT IS SPRAYED?

According to the fire protection design code, after heptafluoropropane is sprayed, its protection area needs to be depressurized, it need a Pressure Relief Damper to be installed on the external wall.

QUESTION 10: WHAT ARE THE CHARACTERISTICS OF HEPTAFLUOROPROPANE FIRE EXTINGUISHING SYSTEMS MADE IN CHINA?

Our biggest feature is to produce cabinet type HFC-227ea fire extinguishing device, which does not need any pipe network and easy to install in the defense area, please check our ΕΓΧΕΙΡΊΔΙΟ ΕΓΚΑΤΆΣΤΑΣΗς for a overview.

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