Stainless steel bellows escort indoor gas safety
The natural gas stainless steel hose adopts integrated manufacturing technology. The surface of the pipe body is covered with a transparent flame-retardant PVC protective cover. It is specially used for the connection of indoor gas source terminals and gas appliances. The joints are all metal connections, effectively It eliminates the accidental fall-off, aging, cracking, air leakage, poisoning, explosion and other safety hazards caused by the bite of the rubber hose. It has corrosion resistance, long service life, good bending performance, convenient connection, beautiful appearance, and safer use. , The relative price is more economical. The standard name should be called 'Stainless Steel Corrugated Hose for Gas Transmission' and 'Stainless Steel Corrugated Pipe for Connection of Gas Appliances'.
Gas stainless steel bellows standard
As early as 2010, the relevant standard 'GB/T 26002-2010 'Stainless Steel Corrugated Hose and Fittings for Gas Transmission'' was promulgated. This standard applies to the nominal size DN10-DN50, and the nominal pressure PN is less than or equal to 0.2 Pa Of hoses and fittings.
The industry standard is CJ/T197-2010 'Stainless Steel Corrugated Hose for Connecting Gas Appliances' This standard applies to fixed installation gas stoves, gas water heaters and gas with a nominal size DN less than or equal to N32 and a nominal pressure less than or equal to 0.01 Pa Hose for connecting gas pipes such as meters.
Why should we vigorously promote the application of gas stainless steel bellows?
According to statistics, more than 80% of indoor gas accidents are caused by problems with pipe materials, gas stoves, gas valves, hoses connecting stoves, or private modification. Among them, the hose problem is particularly serious, mainly in the following situations:
Hose rat bite. As the oily fume exists in the kitchen for many years, the hose is often stained with oil. In the eyes of mice, the oily rubber tube turns into sweet and pastry food, which makes people hard to prevent from biting.
The hose fell off. This is mainly due to the fact that the hose was not tightened when installing it, or after a long time of use, the bayonet was rusted or loose, which could easily cause the hose to fall off and run out of gas, so pay attention to check whether the connections at both ends of the hose are tight to prevent the hose. Occurrence of shedding.
The hose is aging. If the hose is used for a long time and is not replaced in time, it is prone to problems such as aging and cracking, which will cause the hose to leak. Under normal circumstances, the hose needs to be replaced after two years of use.
The hose goes through the wall. Some users move the gas stove to the balcony, the construction is not standardized, and the hose is passed through the wall. This will not only make the hose in the wall easily damaged, fractured and out of gas due to friction, but it is also not convenient for daily operations. Inspections bring great safety hazards to the home. If the gas facilities in your home need to be modified, you must find professionals to implement it.
The hose is too long. If the hose is too long, it is easy to mop the floor. Once it is pierced by a foot pedal or a knife, or deformed and ruptured by squeezing, it is easy to cause a gas leakage accident. The gas hose should generally not exceed two meters.
Use non-dedicated hoses. During the safety inspection of the gas department, technicians found that some users did not use gas-specific hoses in their homes, and replaced them with other materials. The gas department hereby reminds us that we must use a dedicated gas hose instead of other hoses, and it is strictly forbidden to have any joints in the middle of the hose.
Built-in stove hoses are generally hidden in the cabinets, which are easy to scratch and fall off, and are not easy to find, so they should be checked frequently.
In the face of various problems caused by hoses, the promotion and application of gas stainless steel bellows in recent years can greatly reduce the probability of safety accidents of the above ordinary hoses.
The advantages of stainless steel bellows:
1, safe and reliable
The connection between the stainless steel bellows for gas and the quick-release joint is mostly sealed by the end face, of course, there are also plug-in connections with side seals, which can effectively avoid leakage caused by loose thread sealing. Because of its good elasticity, it is easy to bend , In the installation process, elbows and joints can be reduced. Compared with the traditional galvanized installation, the leakage probability will be greatly reduced;
2. Quick-fit joints have good strength and fair design
Its materials are brass or 304 stainless steel, the joints are not easy to crack or deform, and are not easy to be corroded. In the design, the connection with the hose adopts end seals, which greatly improves the reliability of the seal. Some gasket materials use poly four Vinyl fluoride, its life can be consistent with the pipe body, which can reduce the frequency of maintenance or replacement;
3, the installation is simple and fast
Only two special tools are needed during the operation, which can be bent by hand, and there are no joints in the wall or in the middle of the decorative layer when buried, which reduces the risk of leakage;
4. Long service life
Because the tube body is made of high-quality stainless steel, it is not easy to age, which greatly improves the service life;
5, use hidden settings
Because there are no pipe fittings such as elbows, unions, etc., it can be laid on the ceiling or in the decorative layer, and the installation range is wide, meeting the needs of residents' personalized decoration.
Although gas stainless steel corrugated pipes are more expensive, they have a long service life. The service life of rubber hoses is 18 months, that is, one and a half years, while the service life of stainless steel corrugated hoses is more than 10 years. The comprehensive calculation cost is more economical. Affordable and safe.