FM200 clean fire extinguishing agent liquid containing HFC-227ea colorless

FM200 (HFC227ea agent) explanation

Around 1994, a relatively comprehensive and systematic study of heptafluoropropane fire extinguishing agent was conducted in China using mice, rabbits, dogs, and human volunteers. The test results show that heptafluoropropane itself is low-toxic or non-toxic, and inhalation can be considered non-toxic. The toxicity characteristics of heptafluoropropane are as follows:

Among them: NOAEL is the concentration at which no adverse reactions are observed. At this concentration, no observable adverse reactions occur in the tested animals. LOA EL is the lowest concentration at which adverse reactions can be observed. It is the lowest test concentration at which adverse reactions occur. (The no toxic reaction (NOAEL) concentration of heptafluoropropane is 9%, and the toxic reaction (LOAEL) concentration is 10.5%)

Although heptafluoropropane itself is toxic, the toxic decomposition products produced during high-temperature fire extinguishing cannot be ignored.

All fires will produce toxic and corrosive combustion products. Experiments have shown that heptafluoropropane decomposes at 600°C. As the temperature rises and the residence time increases, the pyrolysis reaction intensifies and the content of the raw material in the gas products after the reaction gradually decreases. In the study of cracking products, it was found that the main inorganic gas product of the pyrolysis of heptafluoropropane is HF (hydrogen fluoride), and the organic gas products are mainly hexafluoropropylene and pentafluoropropylene, accompanied by the highly toxic gas perfluoroisobutylene. When the temperature rises to 850°C and the residence time is 15 s, the content of perfluoroisobutylene in the organic gas products after the reaction reaches a maximum value of 6.4. The presence of HF (hydrogen fluoride) and perfluoroisobutylene makes heptafluoropropane fire extinguishing agent cause harm to personnel when used in a fire scene. Therefore, in order to reduce the amount of HF produced by the decomposition of heptafluoropropane under high temperature conditions, it is necessary to shorten the spraying time and appropriately increase the fire extinguishing concentration. The "Design Code for Gas Fire Extinguishing Systems" GB50370 stipulates that the fire extinguishing design concentration of heptafluoropropane fire extinguishing systems is less than 10%, and the design spraying time is no more than 10s.

Summary: So is heptafluoropropane harmful to the human body?

When heptafluoropropane is used as a fire extinguishing agent, the fire company strictly follows the "Gas Fire Extinguishing System Design Specification" GB50370 when designing the fire extinguishing concentration. Therefore, heptafluoropropane fire extinguishing agent is safe and non-toxic when used in workplaces where people are often present at the normal design fire extinguishing concentration. However, one thing to note is that when used in places where people are often present and when the concentration may exceed 10.5%, personnel must evacuate within 1 minute; it is generally required that the concentration of heptafluoropropane in the protection area should not exceed 9.0%. Therefore, when a heptafluoropropane fire extinguishing system needs to be set up, it is recommended to find a professional company to design it to ensure the safety of personnel and property.

Company introduction:

Guangzhou Rongan Fire Protection Equipment Co., Ltd. is a professional manufacturer of fire protection facilities integrating R&D, production, design and sales services. The company has experts from the national fire protection industry standards committee and a group of professional technical service teams with more than ten years of experience in the fire protection industry, and will spare no effort to provide you with the most intimate and professional comprehensive technical solutions for fire protection engineering products. "Rongxiao" series products produced by the company have passed the national compulsory product certification and the national fixed fire extinguishing system inspection center, with reliable quality and stable performance, and the factory has passed the ISO9001 quality system certification.

Frequently asked questions:

Q1: Are you a manufacturer or a trading company? A1: We are manufacturers.

Q2: How long is the delivery time? A2:10 days, which can be negotiated according to the quantity.

Q3: How to deal with the fault? A3: During the warranty period, we will provide you with a remote emergency plan during working hours. During the free maintenance period, the company will replace spare parts or complete machines that have failed due to defects or quality problems free of charge.