EN 598: 2021 ,muyezo waposachedwa wa EN 598, dmapaipi achitsulo a uctile, zolumikizira (zigongono, ma tee, zochepetsera, ndi zina zotero), zowonjezera (flange, socket, spigot, ndi zina zotero) ndi zolumikizira zawo (monga mtundu wa T/K wokakamizamafupa, zolumikizira za flange, malo olumikizira makina) pazofunikira pakugwiritsa ntchito zimbudzi ndi njira zoyesera

- kugwira ntchito popanda kupanikizika (kupondereza madzi otayira), kapena ndi kupanikizika kwabwino kapena koipa;

- kuti iikidwe pansi kapena pamwamba pa nthaka;

- kutumiza madzi pamwamba, zinyalala zapakhomomadzi ndi mitundu ina ya zinyalala zamafakitale, kaya m'makina osiyana kapena m'makina ophatikizana;

- Imaphimba ma diameter a mapaipi kuyambiraDN 80 mpaka DN 2600ndi kupitirira apo.

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