Kodi mungasankhe bwanji valavu ya butterfly?

Valavu ya gulugufe ya pulasitiki ndi chipangizo chodziwika bwino chowongolera madzimadzi, chomwe chimagwiritsidwa ntchito kwambiri m'makampani, zomangamanga ndi ulimi. Pali valavu yagulugufe ya UPVC CPVC PPH PVDF PPH. Chogwirizira agulugufe kukula kwake kumaphatikizapo DN50, DN65 DN80, DN100, DN 200, Vavu ya gulugufe yomwe ili ndi nyongolotsi imaphatikizapo DN50 ~DN300. Lili ndi ubwino wa kapangidwe kosavuta, ntchito yosavuta komanso kukana dzimbiri, choncho imakondedwa kwambiri ndi ogwiritsa ntchito. Komabe, pogula valavu ya gulugufe pulasitiki, tiyenera kuganizira zinthu zina zofunika. Nkhaniyi ikupatsirani kalozera wosankha vavu agulugufe wa pulasitiki kuti akuthandizeni kusankha chinthu choyenera.

1, Kugwirizana kwa Chemical:

Dziwani mankhwala kapena madzi omwe valavu idzawululidwe. Sankhani zipangizo zapulasitiki za thupi la valve ndi zigawo zomwe zimagonjetsedwa kwambiri ndi zowonongeka za mankhwala. Mapulasitiki osiyanasiyana amakhala ndi milingo yosiyanasiyana yokana mankhwala osiyanasiyana, kotero kufananiza zinthuzo ndi zinthu zinazake ndikofunikira.

2, Sankhani zinthu zoyenera:

Ma valve agulugufe a pulasitiki amapangidwa ndi zinthu zosiyanasiyana, zomwe zimapezeka mu PVC (polyvinyl chloride), CPVC (chlorinated polyvinyl chloride), PP (polypropylene), PVDF (polyvinylidene fluoride) ndi PTFE (polytetrafluoroethylene), etc. machitidwe osiyanasiyana, kotero muyenera kusankha zinthu zoyenera malinga ndi zosowa zenizeni. Nthawi zambiri, polypropylene ndi oyenera sing'anga ambiri, PVC ndi oyenera asidi ofooka ndi alkali sing'anga, PTFE ndi oyenera asidi amphamvu ndi zamchere sing'anga, ndi FRP ndi oyenera sing'anga kutentha.

posankha ma valve agulugufe a PVC, CPVC, PP kapena PVDF pazogwiritsa ntchito mankhwala osiyanasiyana, ndikofunikira kulingalira za kuyanjana kwamankhwala kwazinthu zilizonse. Zotsatirazi ndi zitsogozo zofananira ndi zinthu izi ndi mankhwala osiyanasiyana:

Vavu yagulugufe ya PVC (polyvinyl chloride):

Oyenera kuchitira madzi, asidi (kuchepetsa), alkali ndi mchere.

Osavomerezeka kuti agwiritsidwe ntchito ndi ma acid amphamvu, ma ketoni, esters ndi ma hydrocarbon onunkhira kapena okolorini.

CPVC (chlorinated polyvinyl chloride) vavu yagulugufe:

Kulimbana ndi mitundu yambiri ya mankhwala kuposa PVC, kuphatikizapo zakumwa zotentha zowononga, mchere, ndi zidulo zambiri ndi alkalis.

Osavomerezeka kuti agwiritsidwe ntchito ndi zosungunulira za polar, ma hydrocarbon onunkhira ndi ma hydrocarboni a chlorinated.

PP (polypropylene) gulugufe vavu:

Kugonjetsedwa ndi mitundu yosiyanasiyana ya zidulo, alkalis ndi organic solvents.

Osavomerezeka ntchito ndi amphamvu oxidizing zidulo, chlorinated hydrocarbons, zonunkhira ndi halogenated hydrocarbon.

PVDF (polyvinylidene fluoride) vavu yagulugufe:

Kugonjetsedwa kwambiri ndi mitundu yambiri ya mankhwala owononga, kuphatikizapo ma asidi amphamvu, maziko ndi zosungunulira za halogenated.

Zoyenera kunyamula mankhwala owononga komanso ntchito zoyeretsa kwambiri.

Onetsetsani kuti mwawona matchati ogwirizana ndi mankhwala ndi mapepala enaake kuti muwonetsetse kusankha kolondola kwa mavavu agulugufe a PVC, CPVC, PP kapena PVDF pakugwiritsa ntchito mankhwala osiyanasiyana. Kuonjezerapo, ganizirani za kutentha ndi kupanikizika komanso momwe mumayendera ndi makampani pamene mukusankha.

3. Samalirani mawonekedwe a valavu:

Mapangidwe a thupi la agulugufe a pulasitiki ndi chimodzi mwazinthu zomwe ziyenera kuganiziridwa pogula. Mapangidwe amtundu wa valve wamba ali ndi mtundu wa flange, mtundu wa ulusi ndi mtundu wowotcherera. Thupi la valve la Flanged ndiloyenera kuwirikiza kwakukulu komanso nthawi zothamanga kwambiri, thupi la valve lopangidwa ndi ulusi ndiloyenera kucheperako pang'ono komanso nthawi zochepa zopanikizika, thupi la valve welded ndiloyenera kutentha kwambiri komanso nthawi zothamanga kwambiri. Chifukwa chake, muyenera kusankha mawonekedwe oyenera a valavu malinga ndi momwe zinthu zilili pogula.

4. Samalani ndi zinthu zapampando:

Mpando wa valavu ndi gawo lofunikira la valavu ya butterfly ya pulasitiki, yomwe imakhudza mwachindunji ntchito yosindikiza ya valve. Zida zodziwika bwino zapampando wa valve zimaphatikizapo EPDM (ethylene propylene diene monomer), Buna-N (raba ya nitrile), fluoroelastomer (FKM, FPM, VITON), PTFE ndi polyurethane. FKM, FPM, VITON ali ndi dzimbiri wabwino ndi abrasion kukana, PTFE ali dzimbiri kwambiri ndi kutentha kukana, ndi polyurethane ali abrasion wabwino ndi kukana mafuta. .

Zida zimenezi zinasankhidwa chifukwa cha kuthekera kwawo kupereka chisindikizo cholimba, kukana kuvala, komanso kugwirizanitsa ndi madzi osiyanasiyana ndi kutentha. Zida zenizeni zomwe zimagwiritsidwa ntchito pamipando ya valavu ya gulugufe za pulasitiki zimadalira kagwiritsidwe ntchito, mtundu wamadzimadzi womwe umayendetsedwa, komanso momwe amagwirira ntchito.

Mukamagula, muyenera kusankha zida zoyenera zapampando wa valve malinga ndi mawonekedwe a sing'anga

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5, Kupanikizika ndi Kutentha Mavoti:

Sankhani ma valve omwe angathe kuthana ndi kupanikizika kwa ntchito ndi kutentha mkati mwa dongosolo kuti muwonetsetse kuti ntchito yotetezeka komanso yodalirika.

Dzina lazinthu zapulasitiki ndi kutentha koyenera:

6, Kukula ndi Kuyenda:

Sankhani kukula kwa valve ndi kuyenda komwe kumagwirizana ndi zofunikira za dongosolo kuti mukwaniritse zomwe mukufuna kuyendetsa.

7. Ganizirani momwe mungagwiritsire ntchito:

Mavavu agulugufe apulasitiki amagwira ntchito pamanja, pamagetsi komanso mopumira. Ntchito yapamanja ndi yosavuta, yotsika mtengo, yoyenera machitidwe ang'onoang'ono; ntchito yamagetsi ndi yabwino, yolondola kwambiri, yoyenera machitidwe akuluakulu; Pneumatic operation ndi yachangu, digiri yapamwamba ya automation, yoyenera machitidwe omwe amafunikira kusintha pafupipafupi. Choncho, pogula kufunika kosankha njira yoyenera yogwiritsira ntchito malinga ndi zosowa zenizeni.

8. Samalani ndi miyezo ya valve ndi chiphaso:

Pogula mavavu agulugufe apulasitiki, muyeneranso kusamala ngati valavu ikukwaniritsa zofunikira komanso zofunikira za certification. Miyezo wamba ndi certification ndi ISO, CE, API ndi zina zotero. Kusankha zinthu zomwe zimakwaniritsa miyezo ndi zofunikira za certification zitha kutsimikizira kuti chinthucho chili ndi thanzi komanso chitetezo.

Poganizira mozama zinthu izi, mukhoza kusankha valavu ya butterfly ya pulasitiki yoyenera kugwiritsira ntchito mankhwala osiyanasiyana, kuonetsetsa chitetezo, kudalirika ndi moyo wautali pa ntchito yanu.