According to relevant citiesThe initial prices of five types of pipes and fittings were investigated through engineering examples in 2000; The average price of stainless steel pipes and fittings is basically the same as copper pipes, 2-3 times higher than galvanized pipes and PPR pipes, and 2 times higher than composite pipes. For example, in XX high-rise residential building with an area of 20000 square meters, the main pipe is DN65, the riser is DN32, and the branch pipe is DN15. The material procurement amount is 200000 yuan, and the average material cost is 10 yuan/square meter.

It can be seen that thin-walled stainless steel pipes are not expensive to use as a whole, and the cost of water supply pipes for real estate projects in big cities such as Beijing and Shanghai only accounts for 0.2% of the housing priceStainless steel water pipeAnd the increased cost appears even more insignificant. However, the material performance is much superior, and the grade has greatly improved.

Choosing stainless steel water pipes not only has a low initial investment, but also has a very low life cycle cost, which is an economic advantage that stainless steel materials cannot compare with other materials.

    The service life of stainless steel water pipes can reach100 years, at least 70 years, is equivalent to the lifespan of a building. The lifespan of composite pipes is influenced and limited by the lifespan of the main material and thermal expansion, and due to the fact that composite pipes are composed of two materials together, there is a high possibility of detachment of the bonding layer, which also affects the lifespan.

The lifespan of plastic pipes is difficult to determine in China and largely depends on production process technology and raw material quality. The quality varies, and plastic pipes can have a lifespan of up to 50 years without external force. However, the laying direction of water pipes must be completed by hot melt connection, and the physical structure of joints is damaged due to the influence of hot melt, This is why almost everyone around us has encountered a water pipe leak. The lifespan of damaged water pipes is greatly reduced, usually only able to be used for 15-20 years, while the right to use a house is 70 years, resulting in at least 2-3 instances of damaging all decoration for pipe replacement. And stainless steel pipes can reach the same age as buildings, which means that the water pipes can be used for as long as the building is old, which means that the average lifespan of stainless steel pipes should exceed the lifespan of the house. So from this perspective, stainless steel pipes are not as expensive as plastic pipes.

The aging problem of plastic pipes is quite prominent, which can be caused by sunlight, temperature, chemicals, mechanical factors, and time. Aging plastics are prone to explosion under the impact of water pressure and water hammer, greatly reducing their service life. In addition, the hot melt connection method can easily cause water leakage or material degradation at the connection point.

Of course, buying stainless steel pipes mainly comes from health considerations. The health value of improving the water environment for oneself, the elderly, and children is immeasurable.

    Stainless steel pipes are healthy water pipelines

No plasticizer exudation, no corrosion, rust, bacteria growth, long service life, corrosion test data shows,Long service life of stainless steel water pipes100 years, it is a sanitary, economic, and healthy water pipe;

    The tensile strength of stainless steel pipes is that of carbon steel pipes2 times, 3 times of copper pipe, 8-10 times of PP-R pipe, its tensile strength can make its thickness thinner and lighter;

    The thermal conductivity of stainless steel pipes is the same as that of carbon steel pipes1/4, 1/25 of copper pipe. Low thermal conductivity, good insulation performance, especially suitable for hot water pipes;

    Advanced connection technology, significantly improved sealing performance, and working pressure up to2.5MP (tap water pressure is only 0.3-0.6MP), maintenance free;

Beautiful appearance, can be concealed or exposed. The surface of stainless steel water pipes is as bright as a mirror, shining silver, especially suitable for surface installation of kitchen and bathroom water pipes;

    In terms of cost-effectiveness, although stainless steel water pipes may appear expensive on the surface, those who know how to calculate the service life of stainless steel water pipes areIn 100 years, if you calculate that stainless steel water pipes do not require maintenance for life, and if you calculate that stainless steel water pipes never leak and cause property damage to your family, is it worth spending an extra one or two thousand yuan?

    Frost resistance of stainless steel water pipes

    If the water pipe is located on a balcony or outdoors, insulation design is generally necessary because the water will expand after freezing10% volume, if it is PP-R plastic pipeline, it may freeze and crack. Stainless steel water pipes will not have this problem because the expansion ratio of the metal is greater than 10%, and the water pipes will not freeze.

    Stainless steel water pipes have strong corrosion resistance

    All types of stainless steel have a chromium content ofMore than 11% of ferroalloys, when stainless steel is exposed to air or water, immediately form a thin and dense protective chromium oxide passivation film on its surface, which gives stainless steel excellent corrosion resistance. If this membrane is scratched, it can repair itself, and there is enough oxygen in drinking water to promote this repair and protection process.