Voda je nepogrešljiv vir v našem življenju, vodovodna cev pa je transporter za pitno vodo, ki prenaša zdravo vodo. Za vodovodne cevi lahko rečemo, da nosijo življenje in zdravje celotne družine. Mnogi se bodo vprašali, katera je boljša cev za vodo iz nerjavnega jekla ali plastična cev iz PPR? Ko je vodovodna cev v uporabi, težko opazimo menjavo cevi, zato ne vemo, ali je s cevjo težava.
Večina vodovodnih cevi na trgu je plastičnih cevi. Čeprav ni treba skrbeti za vzdržljivost cevovoda, so v njem skrite nevarnosti z vidika zdravja in varnosti, očitni pa so pojavi staranja na spojih cevnih armatur. Zaradi stika s kovinskim pritrdilnim materialom je rja korodirala v cev in se pojavi veliko območje rjavih madežev, vodni tok v cevi pa prenaša rjavo vodo do pipe.
Na notranji steni cevi ingverjeva usedlina obdaja notranjo steno cevi. Ko se ga dotaknete s prsti, lahko občutite lepljivost. Takšna barva vode ovije celotno notranjo steno cevi.
In fact, for plastic pipes, due to their insufficient chemical stability, the above phenomenon is easy to occur in long-term use, especially in some areas with poor water quality, bacteria and impurities grown on the inner wall of the pipe will precipitate a lot, which is harmful to drinking water. Water quality causes secondary pollution. Therefore, under the call of the trend of consumption upgrading and the policy of healthy people's livelihood, my country has ushered in a new round of water pipe upgrading boom, and stainless steel pipes that are in line with international standards have become the pipes recommended by governments at all levels. Governments at all levels have issued calls to use stainless steel pipes for drinking water pipes
The service life of plastic pipes in my country is difficult to determine, which largely depends on the production process and the quality of raw materials. The quality is uneven, there is no external force, and the service life of the plastic pipe can reach 30 years. But the water pipe laying direction needs to use hot melt connection. The physical structure of the joint is damaged due to the influence of the hot melt adhesive. That's why almost everyone around us has experienced a leaking water pipe.
The service life of damaged water pipes is greatly shortened, and more can only be used for 15-20 years, while the right to use the house is 70 years. Therefore, the pipes must be replaced, destroying all decorations at least 2-3 times. Stainless steel water pipes can reach the "same age as the building", that is to say, as long as the building's service life, stainless steel water pipes can be used, which means that the average service life of stainless steel pipes exceeds the service life of the house. So from this point of view, stainless steel pipes are cheaper than plastic pipes.
Z vidika stroškovne učinkovitosti, čeprav je cena cevi iz nerjavnega jekla na videz zelo draga, lahko tisti, ki zna izračunati stroške, izračuna, da je življenjska doba cevi iz nerjavnega jekla 100 let. Če je življenjska doba cevi iz nerjavnega jekla izračunana na 100 let, cev iz nerjavnega jekla ne potrebuje vzdrževanja doživljenjsko. Več kot 1000 juanov ali 2000 juanov, ali je vredno?
Problem staranja plastičnih cevi je bolj izrazit. Sončna svetloba, temperatura, kemikalije, mehanski dejavniki in čas lahko povzročijo staranje. Starajoča se plastika zlahka eksplodira pod vplivom vodnega pritiska in vodnega udarca, njena življenjska doba pa se močno skrajša. Poleg tega so talilni spoji nagnjeni k puščanju vode ali propadanju materiala.
Cev iz nerjavečega jekla, material cevi za živila 304, ne pušča in ne sprošča škodljivih snovi. Notranja stena cevi iz nerjavečega jekla je gladka, kar lahko poveča pretok vode, dovolj za vsakodnevno uporabo in skoraj nič vzdrževanja za vse življenje.