Moyo wautumiki umakhudzidwa ndi zinthu zonsezi: -kukula, kuthamanga, kutentha, kuchuluka kwa kusinthasintha kwa kuthamanga ndi kusinthasintha kwa kutentha, mtundu wa media, maulendo apanjinga, kuthamanga kwa media & kuthamanga kwa ma valve.
Mpando wotsatira & zida zosindikizira zitha kugwiritsidwa ntchito pamavavu osiyanasiyana monga mpira, pulagi, gulugufe, chipata, mavavu cheke etc.
Ambiri zakuthupi kwa mpira valavu mpando Ikani mphete zakuthupi adzakhala
PTFE, RTFFE, PEEK, DEVLON/NYLON, PPL malinga ndi kuthamanga zosiyanasiyana, kukula ndi zikhalidwe ntchito.
Zomwe zimagwiritsidwa ntchito kwambiri pazitsulo zotsekemera zofewa za mpira zidzakhala
adzakhala BUNA-N, PTFE, RPTFE,VITON,TFM, etc.
Kutchula makhalidwe ochepa chabe:
BUNA-N (HYCAR kapena Nitrile)- Kutentha kosiyanasiyana ndi -18 mpaka 100 ℃ pazipita.Buna-N ndi polima wamba yemwe amakana mafuta, madzi, zosungunulira ndi madzimadzi amadzimadzi.Imawonetsanso kupsinjika kwabwino, kukana abrasion, komanso kulimba kwamphamvu. Izi zimagwira ntchito bwino kwambiri m'malo omwe zida za parafini, mafuta acid, mafuta, ma alcohols kapena glycerin zilipo, chifukwa sizikhudzidwa konse.Siyenera kugwiritsidwa ntchito pozungulira zosungunulira za polar (maacetoni, ma ketoni), ma hydrocarbon a chlorinated, ozoni kapena nitro hydrocarbons.Hycar ndi yakuda mumtundu ndipo sayenera kugwiritsidwa ntchito pomwe kusinthika sikungaloledwe.Imawonedwa ngati yofananira m'malo mwa neoprene.Kusiyana kwakukulu ndi: Buna-N ili ndi malire apamwamba a kutentha;neoprene imalimbana kwambiri ndi mafuta.
Chithunzi cha EPDM- Kutentha kumayambira -29 ℃ mpaka 120 ℃.EPDM ndi polyester elastomer yopangidwa kuchokera ku ethylene-propylene diene monomer.EPDM ili ndi ma abrasion abwino komanso kukana misozi ndipo imapereka kukana kwamankhwala kwamitundu yosiyanasiyana ya asidi ndi zamchere.Itha kugwidwa ndi mafuta ndipo sikulimbikitsidwa kugwiritsa ntchito mafuta a petroleum, ma asidi amphamvu, kapena alkaline amphamvu.EPDM sayenera kugwiritsidwa ntchito pa mizere ya mpweya yoponderezedwa.Ili ndi ukalamba wabwino kwambiri wa nyengo komanso kukana kwa ozoni..Ndikwabwino kwa ma ketones ndi ma alcohols.
PTFE (TFE ya Teflon)- PTFE ndiyomwe imalimbana kwambiri ndi mapulasitiki onse.Komanso ali kwambiri matenthedwe ndi magetsi kutchinjiriza properties.PTFE a mawotchi katundu ndi otsika poyerekeza ndi mapulasitiki ena zomangamanga, koma katundu wake amakhalabe pa milingo zothandiza pa kutentha osiyanasiyana osiyanasiyana (-100 ℃ 200 ℃, kutengera mtundu ndi ntchito).
RTFE (Kulimbitsa TFE/RPTFE)- Kutentha kofananira ndi -60 ℃ mpaka 232 ℃.RPTFE/RTFE imaphatikizidwa ndi gawo losankhidwa la fiber glass filler kuti likhale ndi mphamvu komanso kukana kuvala kwa abrasive, kuzizira, komanso kutsekemera pamipando yopangidwa.RTFE sayenera kugwiritsidwa ntchito polimbana ndi galasi, monga hydrofluoric acid ndi caustics yotentha kwambiri.
KABONANI WODZAZA TFE- Kutentha kosiyanasiyana ndi -50 ℃ mpaka 260 ℃.TFE yodzazidwa ndi kaboni ndi mpando wabwino kwambiri wopangira nthunzi komanso madzi otentha otengera mafuta.Zodzaza kuphatikiza ma graphite zimathandizira kuti zinthu zapampandozi zikhale ndi moyo wabwinoko kuposa mipando ina yodzazidwa kapena yolimbikitsidwa ya TFE.Kukana kwa Chemical ndi kofanana ndi mipando ina ya TFE.
Mtengo wa TFM1600-TFM1600 ndi PTFE yosinthidwa yomwe imakhala ndi mankhwala apadera ndi kutentha kwa PTFE, koma imakhala ndi viscosity yotsika kwambiri. osiyanasiyana utumiki kwa TFM1600 ndi -200 ℃ mpaka 260 ℃.
TFM1600+20%GF-TFM1600+20% GF ndi mtundu wa fiber glass reinforced version wa TFM1600.Zofanana ndi RTFE, koma ndi phindu la TFM1600, mtundu wodzazidwa ndi galasi umapereka kukana kwakukulu kwa abrasion ndikuwongolera kukhazikika pazovuta kwambiri.
Mtengo wa TFM4215- TFM4215 ndi ma elector graphitized carbon fill TFM material.The carbon added imapangitsa kukhazikika kwa kuthamanga kwapamwamba ndi kuphatikiza kutentha.
VITON (Fluorocarbon, FKM, kapena FPM)- Kutentha kumayambira -29 ℃ mpaka 149 ℃.Fluorocarbon elastomer mwachilengedwe imagwirizana ndi mitundu yambiri yamankhwala.Chifukwa cha kusakanikirana kwakukulu kwamankhwala komwe kumatenga ndende komanso kutentha kwakukulu, fluorocarbon elastomer yayamba kuvomerezedwa ngati zida zomangira mipeni pachipata cha valve seats. .Ndibwino kwambiri pa ntchito ya hydrocarbon.Mtundu ndi wotuwa (wakuda) kapena wofiira ndipo ukhoza kugwiritsidwa ntchito pamizere yamapepala owukitsidwa.Fluorocarbon(VITON) si yoyenera kugwiritsira ntchito nthunzi kapena madzi otentha, komabe, mu mawonekedwe a o-ring ikhoza kuvomerezedwa ndi mizere ya hydrocarbon yosakanikirana ndi madzi otentha. pa mtundu/mtundu.Pazida zapampando FKM imatha kukana kwambiri wopanga madzi otentha.
PEEK-Polyetheretherketone-high pressure semi-rigid elastomer.Yoyenera kwambiri kuthamanga kwambiri komanso ntchito ya kutentha.Komanso amapereka zabwino kwambiri dzimbiri resistance.Kutentha mlingo -56.6 ℃ mpaka 288 ℃.
DELRIN/POM-Mipando yapadera ya Delrin yoperekedwa chifukwa cha kuthamanga kwapamwamba ndi kutentha kwapansi service.Ikhoza kugwiritsidwa ntchito mu mpweya wothamanga kwambiri, mafuta ndi ma gasi ena koma sali oyenerera oxidizing amphamvu.Kutentha kwa 50 ℃ mpaka 100 ℃.
NYLON/DEVLON-Mipando ya nayiloni (polyamide) imaperekedwa chifukwa cha kuthamanga kwambiri komanso ntchito yotsika kutentha.Atha kugwiritsidwa ntchito mumlengalenga wotentha kwambiri, mafuta ndi zida zina zamagesi koma sizoyenera kuti oxidizing amphamvu.Kutentha mlingo -100 ℃ mpaka 150 ℃.Devlon ali ndi mawonekedwe amayamwidwe amadzi pansi kwanthawi yayitali, kukana kukakamiza komanso kuchedwa kwamoto.Devlon imagwiritsidwa ntchito kwambiri pamapaipi amafuta ndi gasi kunja kwa gulu la trunnion mpira valavu 600 ~ 1500lbs.
Yosinthidwa ndi News team :sales@ql-ballvalve.comwww.ql-ballvalve.com
China pamwamba kutchulidwa fakitale yapadera kupanga mavavu mpira!
Nthawi yotumiza: Oct-26-2022