Uri kuvhiringidzika nesarudzo dzese dzepurasitiki? Kusarudza isiriyo kunogona kukonzera kunonoka kwepurojekiti, kubuda kwemvura, uye kugadzirisa kunodhura. Kunzwisisa maPP fittings ndiko kwakakosha pakusarudza chikamu chakakodzera.

Zvishandiso zvePPzvinobatanidza zvakagadzirwa nepolypropylene, thermoplastic yakasimba uye inoshanda zvakasiyana-siyana. Zvinonyanya kushandiswa kubatanidza mapaipi muzvirongwa zvinoda kushivirira kupisa kwakanyanya uye kuramba zvakanyanya makemikari, zvichiita kuti zvive zvakanaka kushandiswa mumaindasitiri, murabhoritari, uye mumvura inopisa.

Ndakafonera Budi, maneja wekutenga muIndonesia nguva pfupi yadarika. Iye inyanzvi muPVC asi aive nemutengi mutsva achikumbira "Zvishandiso zvekudzvanya zvePP"yekugadzirisa marabhoritari. Budi akanga asina chokwadi nezvemusiyano mukuru uye kuti anokurudzira PP riini kupfuura PVC yaanoziva. Ainetseka nezvekupa mazano asiri iwo. Mamiriro ake ezvinhu akajairika. Nyanzvi dzakawanda dzinoziva mhando imwe kana mbiri dzezvinhu zvepombi asi dzinoona kusiyana kukuru kwemapurasitiki kuchinetsa. Kuziva simba rezvinhu zvakaita sepolypropylene ndiko kunoparadzanisa mutengesi ari nyore kubva kune anopa mhinduro. Ngationgororei zvinoita kuti PP fittings ive chinhu chakakosha mupombi dzemazuva ano.

Chii chinonzi PP fitting?

Unofanira kubatanidza mapaipi kuti uite basa rakaoma, asi hauzive kana PVC ichikwanisa kurigadzirisa. Kushandisa zvinhu zvisiri izvo kuchaita kuti sisitimu isashande zvakanaka uye kugadzirisa patsva kunodhura.

Kuisa PP chinhu chinogadzirwa nepurasitiki yepolypropylene. Chinhu chikuru chayo kugadzikana pakupisa kwakanyanya (kusvika 180°F kana 82°C) uye kuramba zvakanyanya acids, alkalis, uye mamwe makemikari anoparadza, ndosaka ichisarudzwa pane PVC yakajairwa munzvimbo dzakatarwa.

Patinonyatsoongorora PP fitting, tiri kunyatsoongorora hunhu hwepolypropylene pachayo.PVC, iyo inogona kupwanyika nemamwe makemikari kana kuora kana tembiricha yakakwira, PP inochengetedza chimiro chayo chakasimba. Izvi zvinoita kuti ive chinhu chinoshandiswa pazvinhu zvakaita semarara emakemikoro murabhoritari yeyunivhesiti kana marobho ekutenderera kwemvura inopisa muchivako chebhizinesi. Ndakatsanangurira Budi kuti nepo PVC neZvishandiso zvePPMapombi ekubatanidza, mabasa awo akasiyana zvikuru. Unoshandisa PVC pakuisa pombi dzemvura inotonhora. Unoshandisa PP kana paine kupisa kana makemikari. Akabva angonzwisisa. Hazvisi zvekuti chii chiri "nani," asi kuti ndechipi chirichishandiso chakaruramapabasa chairo iro mutengi wake anofanira kuita.

Zvishandiso zvePP vs. PVC: Kuenzanisa nekukurumidza

Kuti sarudzo inyatsojeka, heino tsananguro iri nyore yekuti chinhu chimwe nechimwe chinopenya sei.

Zvinorevei PP mukushandisa mapaipi?

Unoona mavara ekuti "PP" mukatarogu yezvigadzirwa, asi anorevei chaizvo kune system yako? Kusateerera macode ezvinyorwa kunogona kuita kuti utenge chigadzirwa chisina kukodzera.

Mumapaipi, PP inomiririra Polypropylene. Izita repolymer yethermoplastic inoshandiswa kugadzira pombi kana fitting. Chinyorwa ichi chinokuudza kuti chigadzirwa chakagadzirwa kuti chigare kwenguva refu, chisashandise makemikari, uye chishande zvakanaka pakupisa kwakanyanya, zvichichisiyanisa nemamwe mapurasitiki akaita sePVC kana PE.

Polypropylene chikamu chemhuri yezvinhu zvinonzithermoplastics. Muchidimbu, izvi zvinoreva kuti unogona kuipisa kusvika yanyunguduka, woitonhodza, wozoidziisazve pasina kuora kwakanyanya. Hunhu uhwu hunoita kuti zvive nyore kugadzira zvinhu zvakaoma zvakaita sema tee-fittings, magokora, uye ma adapters kuburikidza ne injection molding. Kune maneja wekutenga akaita seBudi, kuziva "PP" zvinoreva polypropylene ndiyo danho rekutanga. Chinotevera kunzwisisa kuti kune mhando dzakasiyana dzePP. Idzi mbiri dzakajairika ndedzinotiPP-H(Homopolymer) uye PP-R (Random Copolymer). PP-H yakasimba uye inowanzoshandiswa mumaindasitiri. PP-R inochinjika uye ndiyo nzira inoshandiswa pakugadzira mapaipi emvura inopisa neinotonhora muzvivakwa. Ruzivo urwu runomubatsira kubvunza vatengi vake mibvunzo iri nani kuti ave nechokwadi chekuti vanowana chigadzirwa chavanoda.

Mhando dzePolypropylene muPombi

Chii chinonzi PP pombi?

Unoda pombi yemvura inopisa kana tambo yemakemikari uye unoda kudzivirira ngura yesimbi. Kusarudza pombi isiriyo kunogona kukonzera kusvibiswa, kudonha kwemvura, uye hupenyu hupfupi hwebasa.

Pombi yePP ichubhu yakagadzirwa nepurasitiki yepolypropylene, yakagadzirirwa kutakura mvura inopisa, mvura yekunwa, uye makemikari akasiyana-siyana zvakachengeteka. Yakareruka, haikanganisi, uye inopa nzvimbo yemukati yakatsetseka inodzivirira kuungana kwemakomba, zvichiita kuti mvura ifambe zvakanaka nekufamba kwenguva.

Mapaipi ePP anoshandiswa pamwe chete nePP fittings kugadzira sisitimu yakakwana, yakafanana. Chimwe chezvakanakira zvikuru ndechekuti anobatanidzwa sei. Kushandisa nzira inonziwelding yekubatanidza kupisa, pombi nechinhu chinokwana zvinodziiswa uye zvinosanganiswa pamwe chete zvachose. Izvi zvinogadzira chinhu chakasimba,joini rinodzivirira kubuda kwemvuraiyo yakasimba sepombi pachayo, ichibvisa nzvimbo dzisina kusimba dzinowanikwa mumasisitimu ane glue (PVC) kana threaded (simbi). Ndakamboshanda nemumwe mutengi panzvimbo itsva yekugadzira chikafu. Vakasarudza yakazaraSisitimu yePP-Ryemvura yavo inopisa nemitsetse yekuchenesa. Sei? Nekuti zvinhu zvacho zvaisazoburitsa makemikari mumvura, uye majoini akabatana aireva kuti pakanga pasina mitswe yekuti mabhakitiriya akure. Izvi zvakavimbisa kuchena kwechigadzirwa chavo uye kuchengetedzeka kwemaitiro avo. Kwavari, mabhenefiti ePP aipfuura pombi dzemvura; yaive nyaya yekudzora mhando.

Chii chinonzi PB fittings?

Unonzwa nezvePB fittings wobva washamisika kana dziri dzimwe nzira dzePP. Kuvhiringidza zvinhu zviviri izvi kunogona kuva chikanganiso chakakomba, sezvo munhu ane nhoroondo yekukundikana kwakapararira.

Zvishandiso zvePB zvinobatanidza mapaipi ePolybutylene (PB), chinhu chinochinjika chaimbova chinoshandiswa pakugadzira mapaipi emumba. Nekuda kwekutadza kushanda zvakanaka kwemakemikari, mapaipi ePB nezvishandiso zvawo hazvichatenderwi nemutemo wemapaipi mazhinji uye zvinoonekwa sezvisisina basa uye zvisingavimbike.

Iyi ipfungwa inokosha yedzidzo kune chero ani zvake ari muindasitiri iyi. Kunyange zvazvo PP (Polypropylene) iri chinhu chemazuva ano uye chakavimbika, PB (Polybutylene() ndiyo yakatangira dambudziko iri. Kubva kuma1970 kusvika kuma1990, PB yakaiswa zvakanyanya pamigero yemvura inopisa neinotonhora. Zvisinei, zvakaonekwa kuti makemikari akajairika mumvura yemuguta, senge chlorine, akarwisa polybutylene nemidziyo yayo yepurasitiki, zvichiita kuti iome. Izvi zvakakonzera kutsemuka kamwe kamwe uye kudonha kwakaipisisa, zvichikonzera kukuvara kwemvura mumabhiriyoni emadhora mudzimba dzisingaverengeki. Kana Budi awana chikumbiro chePB fittings nguva nenguva, inowanzo kuve yekugadzirisa. Ndakamudzidzisa kuti akurumidze kuudza mutengi nezvenjodzi dzePB system yese uye anokurudzira kutsiva zvizere nezvinhu zvakagadzikana, zvemazuva ano zvakaita sePP-R or PEXHazvisi zvekutengesa zvinhu zvakawanda; ndezvekudzivirira mutengi kubva mukukundikana mune ramangwana.

Polypropylene (PP) vs. Polybutylene (PB)

Mhedziso

Zvishandiso zvePP, zvakagadzirwa nepolypropylene yakasimba, ndiyo sarudzo inonyanya kushandiswa pakugadzira masisitimu emvura inopisa nemakemikari. Imhinduro yemazuva ano uye yakavimbika, kusiyana nezvinhu zvekare, zvisina kushanda zvakanaka zvakaita sepolybutylene.