Ungayikhetha Kanjani I-Sealing Material for Butterfly Valves

Ukukhethwa kwezinto zokubopha uphawuama-ama-butterfly valvesidinga ukucatshangelwa okuphelele kwezinto eziningi. Kuphela ngokukhetha izinto ezifanele ama-butterfly ama-valves angaqinisekisa ukubekwa uphawu okuhle ngaphansi kwezimo ezahlukahlukene zokusebenza futhi aqinisekise ukusebenza okujwayelekile kohlelo. Okulandelayo yizici ezibalulekile nezimpawu ezibonakalayo ezijwayelekile okufanele uzicabangele lapho ukhetha:

Umcabango

1. Ukusebenza Izakhiwo Eziphakathi: Ngokuya kwezakhiwo zamakhemikhali, izinto zokwakha ezinamandla, ezinjenge-polytetrafluoroethylene (PTFE), kufanele zikhethwe izindawo eziqinile ze-acidic ne-alkaline; Ngokuya kwezakhiwo ezibonakalayo, imidiya yokushisa ephezulu ingasheshisa ukuguga okubonakalayo kanye nokuguquguquka kwezinto ezibonakalayo, kanye nezindawo eziphakeme zengcindezelo zidinga amandla aphezulu ezibonakalayo namandla acindezelayo. Imidiya enokungcola okuphezulu kwezinhlayiyana idinga izinto ezingavikeleki.

2 Izinto zokubopha uphawu kweRubber zivame ukusetshenziswa phakathi kuka-30 ℃ no-120 ℃, ngenkathi amapulasitiki wobunjiniyela akhethekile angamelana namazinga okushisa aphezulu. Ngaphansi kwezimo eziphakeme kakhulu, izinto zokwakha zidinga ukuba namandla anele kanye nokuqina, njengezinto zokwengeza uphawu lwensimbi kumapayipi wegesi aphezulu, afanelekile.

3. I-valve ukuvula nokuvala imvamisa: laphoI-butterfly valveIvula futhi ivale kaningi, okuqukethwe kufanele kube ukumelana nokungamelana nokukhathala. I-Nitrile Rubber (i-NBR) inokumelana kahle nokuvimbela okuhle futhi ilungele izikhathi ezinjalo.

I-4. I-FASTCOR: Khetha izinto ezibiza kakhulu ukuze unciphise izindleko ngenkathi uhlangabezana nezidingo zokusebenza. Izinto zokubopha uphawu ezijwayelekile zinamanani aphansi, ngenkathi amapulasitiki aphezulu wobunjiniyela noma izinto zokubopha zensimbi zinamanani aphezulu.

Izici ezibonakalayo ezijwayelekile

1. I-Rubber: I-Nitrile Buthaneene Rubber (NBR) i-oyela imelana, igqoke futhi i-anti-agen, ne-auring media yokushisa, ilungele ukuqina kwemithombo yezindaba ephakeme, futhi ilungele ukumelana nemidiya ye-oyela I-Fluororubber (FKM) imelana namazinga okushisa aphezulu, uwoyela, kanye nokugqwala kwamakhemikhali, kepha kuyabiza futhi kunamandla ampofu. Ilungeleama-ama-butterfly valvesEmbonini yamakhemikhali nezemithi enezingcindezi eziphakeme ezisukela ku-20 ℃ kuya ku-200 ℃; I-ethylene propylene rubber (i-Ethdm) imelana namanzi, i-ozone imelana, imelana nokuguga, futhi inokumelana kabi kwamafutha. Ilungele amanzi nezindawo zemithombo ye-Steam Media ezisukela ku-50 ℃ kuya ku-150 ℃.

2 Ilungele izindawo eziqinile ezilonakalisayo zemidiya ezisukela ku--180 ℃ to 250 ℃; I-Polyamide (PA) inamandla aphezulu, ubunzima, ukugqokwa kokuphikiswa, nokuphikiswa kawoyela okuhle, kepha inokufakwa kwamanzi okuphezulu kanye nokuqina kobukhulu obukhulu. Ilungele uwoyela ophakathi futhi ophansi wokucindezela oqukethe izindawo zabezindaba ezisukela ku-40 ℃ kuya ku-100 ℃.

I-3. Izinsimbi: Insimbi engenasici inamandla aphezulu, ukumelana nokugqwala, ukumelana okuphezulu, ukubekwa uphawu okuphezulu, ukubekelwa phansi kwezinsizakalo eziphakeme, kufanelekile ukutshala okuphezulu, okunengcindezi yezindaba ezinzima; I-Copper Alloy inokuphamba okuhle okushisayo, ukuqhutshwa nokuphikiswa kokugqwala, futhi kulula ukucubungula. Kodwa-ke, inamandla aphansi futhi ithambekele kwi-oxidation emazingeni okushisa aphezulu. Ilungele izimo ze-butterfly valve zibopha uphawu ngezilinganiso eziphansi zokushisa nezidingo zokucindezela kanye nokuqhutshwa.