Ukubonakala kwe-valve yebhola kwakungemva kweMpi Yezwe Yesibili.Nakuba ukusungulwa kwe-valve yebhola kuhlehlela emuva ekuqaleni kwekhulu lama-20, le patent yesakhiwo yehlulekile ukuqedela izinyathelo zayo zokuthengisa ngenxa yemikhawulo embonini yezinto zokwakha kanye nemboni yokucubungula imishini.I-DuPont e-United States yasungula ipulasitiki ye-polymer ephezulu ye-polytetrafluoroethylene (PTFE) kwaze kwaba ngu-1943. Lolu hlobo lwempahla lunobuhle bokuqineka okwanele namandla acindezelayo, i-elastoplasticity ethile, izakhiwo ezinhle zokuzithambisa kanye nokungagqwali okuhle kakhulu, okufaneleka kakhulu impahla yokuvala futhi inomphumela wokuvala onokwethenjelwa kakhulu.Ukwengeza, ibhola elinomjikelezo ophezulu kanye nokuqedwa okuhle kwendawo kungakhiqizwa njengelungu lokuvala i-valve yebhola ngenxa yokuthuthukiswa kwemishini yokugaya ibhola.Uhlobo olusha lwevalvu ene-bore egcwele kanye nohambo olujikelezayo lwe-angular engu-90° lungena emakethe yamavalvu, ludonsa ukunaka okukhulu.Imikhiqizo ye-valve yendabuko efana nama-stop valves, ama-valve esango, ama-plug valves kanye nama-butterfly valves kancane kancane ashintshwa ama-valve ebhola, futhi ama-valve ebhola asetshenziswa kakhulu, kusukela kububanzi obuncane kuya kububanzi obukhulu, ukucindezela okuphansi kuya kokucindezela okukhulu, izinga lokushisa elivamile kuya ekushiseni okuphezulu, izinga lokushisa eliphezulu kuya ekushiseni okuphansi.Njengamanje, ububanzi obukhulu be-valve yebhola bufinyelele ku-60 Intshi, futhi izinga lokushisa eliphansi kakhulu lingafinyelela izinga lokushisa le-hydrogen eliwuketshezi -254℃.Izinga lokushisa eliphakeme kakhulu lingafinyelela kusuka ku-850 kuya ku-900 ℃.Konke lokhu kwenza ama-valve ebhola afanele zonke izinhlobo zemidiya, okuba uhlobo oluthembisayo kakhulu lwama-valve.

Ama-valve ebhola angahlukaniswa abe ama-valve ebhola antantayo kanye nama-valve ebhola e-trunnion ngokusekelwe esakhiweni.

Ama-valve ebhola angahlukaniswa abe ama-valve amabhola okungena aphezulu kanye nama-valve ebhola lokungenela.Ama-valve ebhola ezinhlangothini angabuye ahlukaniswe abe ama-valve ebhola ayisiqephu esisodwa, ama-valve aneziqephu ezimbili zebhola kanye nama-valve aneziqephu ezintathu zebhola ngokuya ngesakhiwo somzimba we-valve.Imizimba yamavalvu ocezu olulodwa ibalulekile;amavalvu ebhola anezicucu ezimbili aqukethe imizimba yamavalvu amakhulu kanye nemizimba yamavalve ayisizayo kanye namavalve aneziqephu ezintathu zebhola akhiwe ngomzimba owodwa wamavalvu amakhulu kanye nemizimba emibili yamavalve asizayo.

Ama-valve ebhola angahlukaniswa abe ama-valve ebhola athambile kanye nama-valve amabhola aqinile ngokuhambisana nempahla yokuvala i-valve.Izinto zokuvala zama-valve ebhola athambileko ziyizinto eziphezulu ze-polymer ezifana ne-polytetrafluoroethylene (PTFE), i-polytetrafluoroethylene eqinisiwe nenayiloni kanye nerabha.Izinto zokuvala zama-valve amabhola aqinile ayinsimbi.