Tisati taisa zvakatemwa, ngatitangei tione kuti chinhu chimwe nechimwe chakagadzirwa nei. PPR ndiyo chidimbu chepolypropylene random copolymer, ukuwo CPVC iri chlorinated polyvinyl chloride iyo inogadzirwa kuburikidza nemaitiro eku chlorination kune polyvinyl chloride.
PPR ndiyo inonyanya kushandiswa pombi system muEurope, Russia, South America, Africa, South Asia, China uye Middle East, nepo.CPVCinonyanya kushandiswa muIndia neMexico. PPR iri nani pane CPVC kwete nekuda kwekugamuchirwa kwayo kwakakura, uye yakachengeteka kumvura yekunwa.
Zvino, regai tikubatsire kuita sarudzo yakachengeteka, kunzwisisa kuti nei CPVC pombi isina kuchengetedzeka uye nei uchifanira kusarudzaPPR pombi.

Chikafu giredhi plastiki:
PPR mapaipi haana chlorine derivatives uye akachengeteka kumuviri wemunhu, nepo CPVC pombi chimiro chine chlorine, iyo inogona kupatsanurwa uye kunyungudika mumvura nenzira yevinyl chloride uye kuunganidza mumuviri wemunhu.
Mune zvimwe zviitiko, leaching yakawanikwa mune yeCPVC mapaipi nekuti ine isina kusimba yekunamatira uye inoda makemikari zvinonyungudutsa, nepo PPR mapaipi anobatanidzwa pamwe nekupisa fusion uye kudzivirira mapaipi akakora uye kunamatira kwakasimba. Masimba akabatanidzwa anotungamirira kune chero rudzi rwekudonha. United States yakaita zvidzidzo zvakawanda pamusoro pekubuda kwezvinhu zvine ngozi senge chloroform, tetrahydrofuran uye acetate mumvura yekunwa kuburikidza.CPVC mapaipi.

Izvo zvinonyungudutsa zvinoshandiswa muCPVC zvinoisa hutano hwako panjodzi:

California Pipeline Trade Commission ine basa rekuongorora maitiro ehutano hwepombi masisitimu uye isangano rekupa zvitupa muCalifornia, USA. Yakagara ichitsigira zvakanyanya njodzi yezvinonyungudutsa zvinoshandiswa kubatanidza mapaipi eCPVC. Zvakaonekwa kuti solvent ine carcinogenic elements mumhuka uye inonzi inogona kukuvadza vanhu. Kune rumwe rutivi, mapaipi ePPR haadi chero zvinonyungudutsa uye akabatanidzwa ne-hot-melt teknolojia, saka haana makemikari ane chepfu.

Iyo PPR pombi ndiyo mhinduro ine hutano:
Mapombi eKPT PPR akagadzirwa nemhando yepamusoro-soro, giredhi yechikafu, anochinjika, akasimba, uye anogona kushingirira tembiricha ye -10°C kusvika 95°C. Mapombi eKPT PPR ane hupenyu hurefu hwesevhisi, hunogona kushandiswa kweanopfuura makore makumi mashanu.