Chisindikizo chofewa cha valavu ya gulugufe ndi chisindikizo cholimba

1. Kodi kusiyana kwakukulu pakati pavavu yofewa ya gulugufendi valavu ya gulugufe yolimba yotseka?

Mphete yotsekera ndi yosiyana. Mphete yotsekera ya valavu yofewa yotsekera gulugufe ndi "mpando wachitsulo + mphete yotsekera yopanda chitsulo", ndipo zinthu zomwe zimagwiritsidwa ntchito kwambiri zimaphatikizapo rabara (EPDM/NBR), polytetrafluoroethylene (PTFE), ndi zina zotero, monga momwe zasonyezedwera pa Chithunzi 01; mphete yotsekera ya valavu yotsekera gulugufe yolimba ndi "chitsulo mpaka chitsulo", ndipo mpando wa valavu ndi pamwamba potsekera nthawi zambiri zimapangidwa ndi chitsulo chosapanga dzimbiri, chitsulo cha alloy kapena carbide. Choyamba chimatseka ndi kusintha kwa elastic kwa chinthucho, pomwe chachiwiri chimadalira makina olondola komanso kupanikizika kwapakati kuti chitsekere.

Chithunzi 01	Chithunzi 02

2. Kodi kutentha koyenera kwa chilichonse ndi kotani?

Zisindikizo zofewa zimangogwiritsidwa ntchito pazinthu zopanda chitsulo: Rabala ya EPDM ndi yoyenera -40℃ ~ 120℃, ndipo PTFE imatha kufika -40℃ ~ 200℃. Palibe choletsa chotere pa zisindikizo zolimba. Ma valve a gulugufe achitsulo chosapanga dzimbiri cholimba ndi oyenera -40℃ ~ 425℃, ndipo zipangizo zapadera za alloy zimatha kupirira kutentha kwambiri kuposa 600℃.

3. Ndi ntchito iti yotsekera yomwe ili yabwino kwambiri?

Chisindikizo chofewa chili bwino ndipo sichingatuluke konse (ANSI Class VI). Kutanuka kwa rabara/PTFE kumatha kudzaza kusalingana kwa microscopic pamwamba pa chitsulo ndikupangitsa kuti chisindikizo cha thovu chikhale cholimba. Chifukwa cha kukhudzana kolimba kwa chitsulo, zofunikira za zisindikizo zolimba nthawi zambiri zimakhala ANSI Class IV~V (kutuluka kochepa kumaloledwa), komwe ndikoyenera kwa ma process media omwe ali ndi kulekerera kwina kwa kutayikira.

4. Kodi kusiyana kwa nthawi yogwira ntchito ndi ndalama zokonzera ndi kotani?

Zisindikizo zolimba zimakhala zolimba kwambiri. Mphete ya rabara/PTFE yofewa imatha kutha ndi kukalamba chifukwa cha kukokoloka kwa nthawi yayitali komanso kusinthasintha pafupipafupi. Mphete yotsekera nthawi zambiri imafunika kusinthidwa zaka ziwiri mpaka zisanu zilizonse. Pambuyo poti pamwamba pa chitsulo chotsekera cholimba chapakidwa ndi carbide, sichingawonongeke ndi kukokoloka, ndipo chimakhala ndi moyo wopitilira zaka 10. Ndi yoyenera kusintha pafupipafupi momwe ntchito ikuyendera. Ngakhale kuti mtengo woyamba ndi wokwera, mtengo wokonza kwa nthawi yayitali ndi wotsika.

5. Kodi kusintha kwa ma media kumasiyana bwanji?

Chisindikizo chofewa sichimalimbana ndi dzimbiri/tinthu tating'onoting'ono tomwe tili ndi tinthu tating'onoting'ono. Ngakhale kuti rabara ndi PTFE zimakhala ndi mphamvu yokhazikika ya mankhwala, ngati chinthucho chili ndi tinthu tating'onoting'ono tolimba (monga matope, ufa wa malasha), tinthu tating'onoting'ono titha kukanda mosavuta pamwamba pa chisindikizo chofewa pamene valavu yatsegulidwa ndikutsekedwa, zomwe zimapangitsa kuti madzi atuluke. Zisindikizo zolimba ndizoyenera kugwiritsidwa ntchito movutikira monga nthunzi yotentha kwambiri, zinthu zamafuta, matope okhala ndi tinthu tating'onoting'ono, ndi mpweya wopanikizika kwambiri.

6. Mapeto

Kusiyana kwakukulu pakati pa chisindikizo chofewa ndi chisindikizo cholimba chavalavu ya gulugufeChili mu zinthu zotsekera: chisindikizo chofewa (labala/PTFE) chili ndi kusinthasintha kwabwino, sichingathe kutulutsa madzi, ndipo chimayenera kugwiritsidwa ntchito pa kutentha kwa chipinda; chisindikizo cholimba (kuchokera ku chitsulo kupita ku chitsulo) chimakhala cholimba kutentha kwambiri komanso chosawonongeka, ndipo chimayenera kugwiritsidwa ntchito pamavuto monga nthunzi ndi tinthu tating'onoting'ono. Zonsezi zili ndi ubwino wake, ndipo kusankha kuyenera kutengera momwe ntchito ikuyendera.Tianjin Tanggu Water-Seal Valve Co.,Ltdimadziwika bwino popangamavavu a gulugufe, mavavu a chipata, ma valve owunikirandi mitundu ina ya ma valve. Takulandirani kuti mutiyimbire foni ndipo tidzakupatsani malingaliro a akatswiri osankha!