Specialty Gaskets: Ndi Chiyani Ndipo Timazigwiritsa Ntchito Liti?

Specialty Gaskets: Ndi Chiyani Ndipo Timazigwiritsa Ntchito Liti?

Kwa zaka zoposa 500, malo olumikizira mapaipi achitsulo akhala akulumikizidwa m'njira zosiyanasiyana.Kuchokera pamalumikizidwe oyambilira omwe adapangidwa mu 1785 omwe adagwiritsa ntchito ma gaskets opangidwa ndi zida zosiyanasiyana mpaka kusinthika kwa belu ndi kulumikizana kwa spigot chazaka za 1950 zomwe zidagwiritsa ntchito ulusi wokhotakhota kapena hemp yoluka.

Masiku ano ma gaskets amakono opangidwa ndi mphira amakhala ndi mitundu yosiyanasiyana yamagulu a mphira, ndipo kupangidwa kwa makina a push-on gasket kwatsimikizira kukhala kothandiza kuti madzi asatayike komanso ophatikizira otayira.Tiyeni tiwone bwinobwino gasket iliyonse yapadera yomwe ikupezeka pamsika lero.

Ntchito Zapadera Zimayitanira Ma Gaskets Apadera

Kodi mumadziwa kuti si ma gaskets onse omwe amapangidwira ntchito zonse?Kuti mugwiritse ntchito bwino ntchito iliyonse, ndikofunikira kugwiritsa ntchito zida zoyenera za gasket pakugwiritsa ntchito mwapadera.

Mkhalidwe wa nthaka, mitundu ina ya mapaipi pafupi ndi malo anu oyikapo, ndi kutentha kwamadzimadzi ndizofunikira kwambiri pozindikira kuti ndi gasket iti yomwe ikuyenera kugwira ntchitoyo.Ma gaskets apadera amapangidwa ndi mitundu yosiyanasiyana ya magalasi kuti athe kukana chilichonse chomwe chingafune ntchito.

Kodi Mungasankhire Bwanji Gasket Yoyenera Yapadera Yantchitoyo?

Choyamba, onetsetsani kuti mukugwiritsa ntchito ma gaskets apadera operekedwa ndi wopanga chitoliro.Kuphatikiza apo, onetsetsani kuti ma gaskets ndi NSF61 ndi NSF372 ovomerezeka.Tsopano, tiyeni tione mwatsatanetsatane mitundu yosiyanasiyana ya gaskets yomwe ilipo, kusiyana kwawo, ndi ntchito zawo.

SBR (Styrene Butadiene)

Ma gaskets a Styrene Butadiene (SBR) ndi omwe amagwiritsidwa ntchito kwambiri pophatikizira pagulu pamakampani a Ductile iron pipe (DI pipe).Chidutswa chilichonse cha DI chitoliro chimatumizidwa mulingo ndi SBR gasket.SBR ndiye pafupi kwambiri ndi mphira wachilengedwe pamitundu yonse yapadera.

Zomwe zimagwiritsidwa ntchito pa SBR gasket ndi:

Kumwa-Madzi;Madzi a M'nyanja;Sewero laukhondo;Madzi Obwezeretsedwa;Madzi Yaiwisi;Madzi a Mkuntho

Kutentha kwakukulu kwa ntchito za SBR kukankhira ma gaskets ophatikizana ndi madigiri 150 Fahrenheit pakugwiritsa ntchito madzi ndi zimbudzi.

EPDM (Ethylene Propylene Diene Monomer)

Ma gaskets a EPDM amagwiritsidwa ntchito kwambiri ndi chitoliro cha Ductile Iron pamene pali:

Mowa;Kuchepetsa ma Acid;Sungunulani alkali;Ketoni (MEK, acetone);Mafuta Amasamba

Ntchito zina zovomerezeka zikuphatikizidwa ndi:

Kumwa-Madzi;Madzi a M'nyanja;Sewero laukhondo;Madzi Obwezeretsedwa;Madzi Yaiwisi;Madzi a Mkuntho

EPDM push joint gaskets ali ndi kutentha kwapamwamba kwambiri kwa gaskets zazikulu zisanu zapadera pa 212 degrees Fahrenheit pakugwiritsa ntchito madzi ndi zimbudzi.

Nitrile (NBR) (Acrylonitrile Butadiene)

Ma gaskets a Nitrile amagwiritsidwa ntchito kwambiri ndi chitoliro chachitsulo cha Ductile pamene pali:

Ma hydrocarbons;Mafuta;Mafuta;Madzi;Mafuta Oyeretsedwa

Ntchito zina zovomerezeka ndi izi:

Kumwa Madzi;Madzi a M'nyanja;Sewero laukhondo;Madzi Obwezeretsedwa;Madzi Yaiwisi;Madzi a Mkuntho

Nitrile amakankhira ma gaskets olowa kuti azitha kutentha kwambiri kwa 150 ° Fahrenheit pakugwiritsa ntchito madzi ndi zimbudzi.

Neoprene (CR) (Polychloroprene)

Ma gaskets a Neoprene amagwiritsidwa ntchito kwambiri ndi chitoliro chachitsulo cha Ductile pochita ndi zinyalala zamafuta.Kugwiritsa ntchito kwawo kumaphatikizapo:

Kumwa Madzi;Madzi a M'nyanja;Sewero laukhondo;Madzi Obwezeretsedwa;Madzi Yaiwisi;Madzi a Mkuntho;Viton, Fluorel (FKM) (Fluorocarbon)

Izi zimatengedwa ngati "Mack Daddy" amagetsi apadera - Ma gaskets a Viton atha kugwiritsidwa ntchito:

Mafuta a Hydrocarboni onunkhira;Mafuta a Acids;Mafuta a masamba;Mafuta a Petroleum;Ma Hydrocarbons a klorini;Zambiri Zamankhwala ndi Zosungunulira

Ntchito zina zovomerezeka ndi izi:

Kumwa Madzi;Madzi a M'nyanja;Sewero laukhondo;Madzi Obwezeretsedwa;Madzi Yaiwisi;Madzi a Mkuntho

Kuphatikiza apo, ma gaskets ophatikizana a Viton amakhala ndi kutentha kwapamwamba kwambiri kwa madigiri 212 Fahrenheit, zomwe zimapangitsa kuti Viton gasket ikhale yabwino kwambiri komanso yozungulira yapadera gasket ya chitoliro chachitsulo cha Ductile.Koma kukhala wopambana kumabwera ndi mtengo;iyi ndiye gasket yapamwamba kwambiri pamsika.

Kusamalira Specialty Gaskets

Tsopano, ma gaskets anu akaperekedwa kumalo ogwirira ntchito, onetsetsani kuti mukusamalira bwino ndalama zanu.Zinthu zingapo zitha kuwononga magwiridwe antchito onse a gaskets anu.

Zoyipa zotere zikuphatikiza, koma sizimangokhala:

Kuwala kwa dzuwa;Kutentha;Nyengo;Dothi;Zinyalala

Moyo woyembekezeka wa chitoliro cha DI ndi wopitilira zaka 100, ndipo tsopano mutha kuzindikira gasket yolondola pazantchito zilizonse, mutha kukhala otsimikiza kuti polojekiti yanu ndi Iron Strong pakapita nthawi.