Tisanalowe mwatsatanetsatane, tiyeni tione kaye kuti chinthu chilichonse chapangidwa ndi chiyani.PPR ndi chidule cha polypropylene random copolymer, pamene CPVC ndi chlorinated polyvinyl chloride yomwe imapangidwa kudzera mu ndondomeko ya chlorination ku polyvinyl chloride.
PPR ndiye njira yomwe imagwiritsidwa ntchito kwambiri ku Europe, Russia, South America, Africa, South Asia, China ndi Middle East, pomweMtengo wa CPVCamagwiritsidwa ntchito makamaka ku India ndi Mexico.PPR ndi yabwino kuposa CPVC osati chifukwa cha kuvomerezedwa kwake, ndipo ndi yabwino kwa madzi akumwa.
Tsopano, tiyeni tikuthandizeni kupanga chisankho chotetezeka, kumvetsetsa chifukwa chake mapaipi a CPVC ali otetezeka komanso chifukwa chake muyenera kusankhaMtengo wa PPR.

Pulasitiki ya chakudya:
Mapaipi a PPR alibe zotumphukira za chlorine ndipo ndi otetezeka kwa thupi la munthu, pomwe chitoliro cha CPVC chili ndi chlorine, yomwe imatha kupatulidwa ndikusungunuka m'madzi ngati vinyl chloride ndikudziunjikira m'thupi la munthu.
Nthawi zina, leaching yapezeka pamilandu ya mapaipi a CPVC chifukwa ali ndi zomata zofooka ndipo amafuna zosungunulira zamankhwala, pomwe mapaipi a PPR amalumikizidwa palimodzi ndi kuphatikizika kwa kutentha ndikuletsa mipope yayikulu komanso kumamatira mwamphamvu.Mphamvu zophatikizidwa zimatsogolera ku mtundu uliwonse wa kutayikira.United States yachita maphunziro ambiri pa leaching wa zinthu zoopsa monga chloroform, tetrahydrofuran ndi acetate mu madzi akumwa kudzera.Zithunzi za CPVC.

Zosungunulira zomwe zimagwiritsidwa ntchito mu CPVC zimayika thanzi lanu pachiwopsezo:

California Pipeline Trade Commission ili ndi udindo wowunika momwe mapaipi amakhudzira thanzi ndipo ndi bungwe lopereka ziphaso ku California, USA.Yakhala ikulimbikitsa kwambiri zotsatira zowopsa za zosungunulira zomwe zimagwiritsidwa ntchito polumikiza mapaipi a CPVC.Zapezeka kuti zosungunulirazo zimakhala ndi zinthu zoyambitsa khansa m'zinyama ndipo zimawonedwa kuti zitha kuvulaza anthu.Kumbali ina, mapaipi a PPR safuna zosungunulira zilizonse ndipo amagwirizanitsidwa ndi teknoloji yotentha yosungunuka, kotero alibe mankhwala oopsa.

Paipi ya PPR ndiye yankho labwino:
Mapaipi a KPT PPR amapangidwa ndi zida zapamwamba kwambiri, zamtundu wa chakudya, zosinthika, zolimba, ndipo zimatha kupirira kutentha kwa -10°C mpaka 95°C.Mapaipi a KPT PPR amakhala ndi moyo wautali kwambiri, womwe ungagwiritsidwe ntchito kwa zaka zopitilira 50.