The safety of gas use has always been the focus of attention all over the world. Shanxi Province, the largest coal-producing province in China, is rich in coal resources. However, with the exhaustion of coal resources and environmental pollution, many places will ban coal mining and use natural gas resources. Gas is usually transported to thousands of households through gas pipelines, but natural gas pipelines will age because of different materials and different environments. Natural gas pipelines are mainly divided into indoor and outdoor, and outdoor pipelines are designed by relevant departments in strict accordance with standards. Indoor is the biggest hidden danger of natural gas use safety. At present, indoor natural gas pipelines mainly include seamless steel pipes, metal hoses, aluminum-plastic composite pipes and gas pipelines.
In the past, because of the cost of materials, most indoor pipes were gas pipes, all made of PVC. Its advantages are low cost, good sealing and strong corrosion resistance, but the biggest disadvantage of PVC pipe is that it is easy to age and needs to be replaced in about 2 years, otherwise it will easily lead to air leakage. With the increasing demand for safe use of gas, the use of metal hoses has become more and more common. This time, Taiyuan gas users changed hoses like this.
Natural gas metal hose is also called corrugated pipe, which combines all the advantages of PVC, and its corrosion resistance and service life are greatly increased. Although it is more expensive than PVC pipe, it is more cost-effective compared with the need to replace PVC pipe frequently, which not only saves a lot of manpower and material resources, but also reduces environmental pollution.