1. Yintoni ivalvu yebhabhathane enemigca epheleleyo yePTFE?
Iivalvu zebhabhathane ezigcweleyo ze-PTFE (polytetrafluoroethylene) zisetyenziswa kakhulu kwiinkqubo zemibhobho yemidiya enokubola kakhulu (ezifana nee-asidi ezinamandla, iziseko ezinamandla, kunye nezinyibilikisi zendalo) kuba umzimba wevalvu kunye nediski zigcwele ngokupheleleyo i-PTFE, nto leyo ebonelela ngokumelana nokubola okugqwesileyo kunye nokusebenza kokutywina. Ulwakhiwo lomzimba wevalvu lwahlulwe ngokubanzi kwiindidi ezimbini: umzimba oneenxalenye ezimbini (umzimba oqhekekileyo) kunye nomzimba oneenxalenye enye.isakhiwo esinamacandelo amabiniluyilo oluphambili lweevalvu zebhabhathane ezinemigca epheleleyo yePTFE, ngelixa uyilo lwenxalenye enye lungaqhelekanga, ikakhulu ngenxa yemida kwinkqubo yokufaka ulwelo.
2. Ukufana
Ubungakanani:DN50-DN600. Ngokungafaniyo neevalvu zebhabhathane eziqhelekileyo ezinezihlalo ze-EPDM, ubungakanani obuncinci bezihlalo ze-PTFE yi-DN50.
Uxinzelelo:Ilinganiselwe zizinto zePTFE, ingakumbi idiski ene-PTFE, ifanelekile kuxinzelelo oluphezulu lwePN10 (i-PN16 ifuna iinkcukacha ezikhethekileyo).
Ubushushu:Ubushushu bokusebenza buyi -10 ukuya kwi-180 degrees Celsius. (I-RPTFE idla ngokuba yi -20 ukuya kwi-200 degrees Celsius)
3. Umahluko oPhambili kunye noThelekiso
3.1 Iimpawu zeSakhiwo
Iziqwenga ezimbiniUmzimba(Umzimba Owahlulweyo): Umzimba wevalvu uneziqingatha ezibini (okanye iziqwenga ezibini) ezidityaniswe zaza zaqhagamshelwa ngeebholiti. Ingaphakathi lenziwe kwiqingatha ngalinye ngokwahlukileyo ngaphambi kokuba lihlanganiswe.
Umzimba oneqhekeza elinye (Umzimba wonke):Umzimba wevalvu uphoswa okanye wenziwe ngomatshini njengeqhekeza elinye, kwaye i-lining ifuna ukugoba ngenaliti okanye inkqubo ekhethekileyo yokugquma ngokupheleleyo.
3.2 Inkqubo yoMveliso
Umzimba wevalvu yebhabhathane ehlulweyo:Umzimba wevalvu uqulathe iindawo eziphezulu nezisezantsi ezidityaniswe ngeebholiti. I-PTFE lining (kuquka neeringi ze-silicone) idla ngokwenziwa ngokwahlukeneyo ngaphambi kokuhlanganiswa. Ke ngoko, inkqubo ye-lining yomzimba oneziqwenga ezibini ilula kwaye ayifuni zimolulo okanye izixhobo ezikhethekileyo zokuhlanganiswa.
Ipheleleumzimba wevalvu yebhabhathane: Umzimba wevalvu uphoswe okanye wenziwe ngomatshini njengeqhekeza elinye, ngaphandle kwemiphezulu edibeneyo ephakathi. I-PTFE lining idityaniswe nomzimba wevalvu ngokubumba okanye ukuthulula i-integral.
3.3 Ukusebenza kokutywina
Iziqwenga ezibini (Umzimba Owahlulweyo):Akukho kuvuza kwe-bidirectional (ukungavuthi ngamaqamza), kodwa umphezulu odibeneyo ufuna uyilo oluhle lokutywina (njengee-O-rings okanye ii-gaskets).
Inxalenye enye (umzimba wonke): Akukho macala adibeneyo, iindawo ezimbalwa zokuvuza, kunye nokuthembeka okuphezulu kokutywina.
3.4 Ubungakanani obufanelekileyo
Iziqwenga ezibini (Umzimba Owahlulweyo):Ifumaneka rhoqo kwi-DN50 ~ DN600, kwaye nobukhulu obukhulu bunokufikeleleka lula.
Inxalenye enye (uMzimba weMonoblock): Incinci kakhulu kwiidayamitha ezincinci; kunzima ukwenza ubungakanani obukhulu.
3.5 Ukulula kokugcinwa
Umzimba wevalvu yebhabhathane enamaqhekeza amabini:Igqwesile: Kulula ukuyiqhaqha, akukho zixhobo zikhethekileyo zifunekayo, kwaye ii-lining halves okanye i-butterfly disc zingatshintshwa nganye nganye, nto leyo eyenza ukulungiswa kube lula.
Umzimba wevalvu yebhabhathane eneqhekeza elinye:Imbi: Kunzima ukuyilungisa kwindawo ethile xa ingaphakathi lonakele; kudla ngokufuna ukutshintshwa komzimba wonke wevalvu.
3.6 Ixabiso
Iziqwenga ezimbini:Ngaphezulu, isihlalo se-PTFE sineringi ye-silicone ngaphakathi ukuze sonyuse ukuthamba kunye nokusebenza kokutywina.
Ipisi enye: Iphantsi, nangona inkqubo yokufakwa kwe-lining iyinkimbinkimbi (i-PTFE ayinakuthamba kakuhle kwaye kunzima ukuyifaka ngokulinganayo emzimbeni wevalvu enye), kwaye ukwenziwa kwayo kuyinselele, inkampani yethu inetekhnoloji evuthiweyo, nto leyo ebangela ukuba amaxabiso aphantsi.
3.7 Imeko zokusetyenziswa
Iziqwenga ezimbini : Ukhetho oluqhelekileyo, oluxhaphakileyo kwiipayipi ze-chemical, zamayeza, zamanzi amdaka, kunye nezombane.
Ipisi enye: Isetyenziswa kwizicelo ezikhethekileyo ezifunwa kakhulu (ezifana neemfuno zokuvala eziphezulu kakhulu kwaye akukho mfuneko yokugcinwa), kodwa ayisetyenziswa rhoqo kwiivalvu zebhabhathane ezigcwele i-PTFE.
Ixesha leposi: Jan-16-2026