Why must stainless steel corrugated hose be used for household gas connection?

1. Safety hazards of traditional rubber hoses
There are many safety hazards in the long-term use of traditional rubber hoses for household gas, which directly affect the safety of users' lives and property. Rubber materials are prone to aging and cracking during use. Data shows that rubber hoses will harden and crack after 2-3 years of use. Ordinary families often ignore regular replacement, resulting in long-term safety hazards. In addition, rubber hoses are very easy to become targets for rodents to bite. Many gas leakage accident investigations show that rats biting rubber hoses is one of the main causes of accidents.

The temperature resistance of rubber hoses also restricts their safety. The operating temperature range of ordinary rubber hoses is usually between -10℃ and 60℃, and aging will be accelerated beyond this range. When the hose is close to the high temperature area of ​​the stove, long-term heating will cause the rubber molecular chain to break and the material performance will be significantly reduced. In addition, the rubber hose also has the problem of loose connection. It uses a simple clamp fixing method, which is easy to fall off when pulled by external force, causing gas leakage.

From the perspective of material properties, the air permeability of rubber is also a potential danger. Even if there is no obvious damage, small molecules in the gas can slowly seep out of the rubber tube wall. The existence of these safety hazards has gradually replaced rubber hoses with stainless steel corrugated hoses with higher safety standards.

2. Safety advantages of stainless steel corrugated hoses
Stainless steel corrugated hoses have shown high safety performance in the field of household gas connections due to their unique structure and material. Its metal material characteristics solve the air permeability problem of rubber hoses, completely block the penetration of gas molecules, and ensure the absolute sealing of medium transportation. This all-metal structure can also withstand special temperature conditions, with an operating temperature range of -40℃ to 150℃, and a melting point of up to 1500-1600℃, which is higher than the melting point of copper and galvanized pipes. Even if it encounters high temperatures in fires, the port will not fall off and cause secondary disasters.

The anti-destruction ability of stainless steel corrugated hoses is significantly better than that of traditional products. The corrugated pipe has strong compressive and tensile properties. Experiments show that the tube body can stretch 40% of its own length without breaking, and can effectively resist external impact. In terms of connection, the stainless steel corrugated hose adopts all-metal threaded connection, and the joint is made of brass or stainless steel. The end face sealing technology ensures a firm connection and eliminates the risk of accidental detachment. This connection method is more reliable than the clamp fixation of the rubber hose and can withstand greater pull-off force.

From the appearance design point of view, the stainless steel corrugated hose is usually equipped with a PVC protective jacket, which not only has a flame retardant function, but also prevents the metal corrugated part from directly rubbing against external hard objects, thereby extending the service life. As a food-grade material, 304 stainless steel contains 18% chromium and 9% nickel, has good corrosion resistance and processing performance, and can meet the needs of household gas connection.

3. Economic analysis of installation, maintenance and long-term use
The convenience of installation of stainless steel corrugated hose is also an important factor in its popularity. Compared with traditional galvanized steel pipes that require a large number of pipe fittings and complex tools, stainless steel corrugated hoses are simple to install, easy to carry, and require simple tools. Its flexibility allows manual bending operations, can adapt to various complex installation environments, and is particularly suitable for pipeline renovation for old users. Professional installers said that the installation efficiency of stainless steel bellows is more than three times that of traditional methods, reducing labor costs.