Ukukhethwa kwempahla yokuvala i-valve yebhola kubalulekile ekusebenzeni kwayo ngempumelelo.Kulokhu okuthunyelwe, sizobheka ezinye zezici ezinkulu zezinketho eziyisithupha ezivame ukusetshenziswa ezigxivizo ze-polymer kuma-valve ebhola.
Nakhu okunye okuthunyelwe okwengeziwe kokuthi Izihlalo Ze-Polymer kanye Nezixazululo Zokutywina:
- Izihlalo ze-Ball Valve - Izinketho Zokuthenga Ezibalulekile ezingu-9
- I-Advanced EMC Technologies High Performance Seal Solutions Umhlahlandlela
- I-PTFE Rotary Lip Seals – Isici Esiyi-6 Esiqhudelana Naye Abafuni Ukwazi!
Into Ebalulekile #1:Virgin PTFE
I-Virgin PTFE (i-polymer yegama lokuhweba) ilungile njengempahla yokuvalwa kwevalvu yebhola yokucindezela okungaphansi kuka-5 ksi kanye namazinga okushisa aphakathi kuka -20 F kanye no-400 F;nokho, ukusebenza kwayo kwezinga lokushisa kuncike ekucindezelweni.Uma sikhuluma ngengcindezi, i-PTFE ayinciphisi kahle ngemva kokucindezelwa.Qaphela ukuthi i-polymer ayenzi kahle uma ingaphansi kokuguquguquka kwezinga lokushisa elingaphezu kuka-167 F. Enye yamandla ayo amakhulu ukumelana namakhemikhali, ukuba seduze nokungancibiliki;amanye amandla ukungqubuzana okuphansi kakhulu.Iyakwazi ukumelana nomlilo.
Izinto Ezibalulekile #2:I-PTFE Eqiniswe Ngengilazi
I-PTFE eqinisiwe njengoba isetshenziswa kuma-valve seal ebhola ngokuvamile ingu-15% we-glass fiber, okwandisa izinga lokushisa nengcindezi etholakala nge-PTFE emsulwa.Njenge-polymer engaqinisiwe, i-PTFE eqiniswe ingilazi isenokumelana okuhle kakhulu kwamakhemikhali ngaphandle kwama-hot caustics nama-hydroflourics.Nayo, iyakwazi ukumelana nomlilo futhi inokungqubuzana okuphansi, nakuba ingekho ngaphansi njenge-PTFE eyintombi nto.
Into Ebalulekile #3:Insimbi Engagqwali Yaqiniswa I-PTFE
Kukhona enye indlela ye-PTFE eqinisiwe ngezinye izikhathi esetshenziswa kuma-valve seal: insimbi engagqwali eqiniswe i-PTFE.Lesi sici esihlanganisiwe senziwe nge-polymer engu-50% kanye ne-50% eyimpuphu engu-316 yensimbi engagqwali.Izinga layo lokushisa lingama -20 F kuya ku-550 F (liphakeme kancane kune-PTFE emsulwa) futhi linamandla okucindezela okuphakeme kune-PTFE engamsulwa noma yengilazi eqiniswe ngefayibha.Nayo, futhi, ayikwazi ukumelana nomlilo, nokho i-coefficient yayo yokungqubuzana iphezulu kune-PTFE.
Izinto Ezibalulekile #4:I-PEEK
I-PEEK iyinketho lapho izimfuneko zingaphandle kwebanga lokushisa le-PTFE.I-PEEK isebenza kahle ezindaweni ezinamazinga okushisa aphakathi kuka -70 F kuya ku-600 F, futhi ayiphazanyiswa ukuchayeka okuqhubekayo kusitimu namanzi ashisayo.Iqinile kune-polymer, kodwa futhi inzima.Umphumela wayo omkhulu, ngaphandle kokuqina kwayo, ukuziphatha kwayo okuxegayo emazingeni okushisa aphansi.
Izinto Ezibalulekile #5:UMHW Polyethylene
I-UHMW Polyethylene ibonakala iyikhethelo kwezinye izinhlelo zokusebenza ezikhethekile, okuhlanganisa nalezo lapho kuzoba nokuchayeka emisebeni okuphansi kuya kokuphakathi.Isilinganiso sokucindezela kwayo singu-1.5 ksi futhi izinga lokushisa layo lingu-70 F kuya ku-200 F 1500 psi -57C kuya ku-93C.I-UHMW Polyethylene nayo inokumelana okuhle kakhulu nokuhuzuka.
Izinto Ezibalulekile #6:I-Chlorinated Polyether
I-Chlorinated polyether ngezinye izikhathi isetshenziswa njenge-ball valve seal material, esebenza emazingeni okushisa afika ku-257 F. Isebenza kahle lapho kukhona ama-acids nezincibilikisi uma ukuthambisa kungabekezelelwa, futhi imelana namakhemikhali angaphezu kuka-300.Ayikhaseli, futhi ayivamisile ukumunca amanzi.
Izimpawu Eziqhubekayo Zishintshashintsha:
Izinto zokufaka uphawu ziyinkambu eguqukayo eqhubekayo, kodwa lezi zinto eziyisithupha zibonakala ziyizimbangi ezihamba phambili ekukhethweni kophawu lwe-thermoplastic ball valve.Izici zabo ezinkulu zibonakala ekusebenzeni kwengcindezi nokusebenza kwezinga lokushisa, ukungqubuzana okuphansi, ukumelana namakhemikhali.
Amathegi:i-polymer ptfe,uhmw,izigxivizo zamavalvu ebhola
Isikhathi sokuthumela: Jul-10-2018