
I-valve yangaphakathi ibhekisela ezingxenyeni ezibalulekile ezigcinwe ngaphakathi kwe-valve elawula ngokuqondile ukugeleza, isiqondiso, nokucindezela koketshezi (uketshezi noma igesi). Ngenkathi umzimba we-valve uqukethe ingcindezi, ngabangaphakathi abenza umsebenzi obalulekile wokuvala, ukumodela, nokuvala ukugeleza. Ukusebenza nokuqina kwazo kusemqoka kukho konke ukuthembeka kwesistimu.
Lezi zingxenye ngokuvamile ziklanywe njengezingxenye ezishintshayo, ezivumela ukugcinwa nokulungiswa ngaphandle kokushintsha wonke umzimba we-valve.
Izingxenye ezithile ziyahlukahluka ngohlobo lwevalvu (isb., iglobhu, isango, ibhola, isheke), kodwa abangaphakathi ababalulekile bavame ukufaka:
Nquma: Leli yitemu elihlangene lesethi yezingxenye ezihlangana ngqo noketshezi olugelezayo futhi zilulawule. ce okwenza uphawu ngelungu lokuvala (isb., ipulaki, ibhola, isango). Kubalulekile ukufeza ukuvala okuqinile.
"I-trim" ngokuvamile ihlanganisa:
Isihlalo: I-surfa emileIlungu Lokuvala (Idiski, Ipulaki, Ibhola, Isango): Ingxenye enyakazayo ehamba ngokumelene noma kude nesihlalo ukuze ime noma ivumele ukugeleza.
Isiqu: I-shaft exhuma i-actuator (isondo lesandla lesandla noma isistimu ezenzakalelayo) kulungu lokuvala, idlulise amandla okuvula noma ukuvala i-valve.
Ikheji: Ingxenye ezungeze ilungu elivalayo kumavalvu okulawula athile. Iqondisa ipulaki, inikeza ukuzinza, futhi izimbobo noma izimbobo zayo zisiza ukulawula izici zokugeleza nokunciphisa i-cavitation nomsindo.
Ama-Seal & Gaskets: Lokhu kufaka phakathi ama-O-rings, ama-gland packings, nama-gaskets avimbela ukuvuza eduze kwesiqu (ukuvalwa kwesiqu) naphakathi komzimba we-valve nebhonethi.
Ama-valve angaphakathi asebenza ezindaweni ezinzima kakhulu, ezibhekene:
Ukuguguleka: Kubangelwa isivinini esikhulu noma uketshezi olugcwele izinhlayiyana.
Ukugqwala: Kusuka kwabezindaba abanolaka lwamakhemikhali.
I-Cavitation: Ukwakheka kanye nokuwa kwamabhamuza omhwamuko, okubangela ukugoba komhlaba.
Ukucindezela Okuphezulu/Izinga lokushisa: Okuholela ekulimazeni (ukunamathela okunamathelayo) nokonakala.
Ukuze ulwe nalezi zinkinga, ama-valve angaphakathi ngokuvamile enziwa kusuka noma avikelwe ngezinto ezithuthukisiwe, kanti i-tungsten carbide iyisinqumo esiphezulu sezinsizakalo ezinzima kakhulu.
Ithebula elilandelayo lifingqa ama-valve angaphakathi ajwayelekile, izinselelo zawo, nezixazululo ezijwayelekile zezinto ezibonakalayo:
| Isakhi | Umsebenzi | Izindlela Zokugqoka Ezivamile | Izixazululo Zezinto Ezivamile |
| Isihlalo | Inikeza indawo yokuvala ukuze kuvalwe. | Ukuguguleka kwenhlabathi, i-Cavitation, i-Galling, ukugqwala. | I-Tungsten Carbide, Stellite (Cobalt-Chrome), 316SS, Alloy 6, Ceramics. |
| Ilungu Lokuvalwa (Ipulagi/Idiski) | Ihambisa ukuze uvule/uvale indlela yokugeleza. | Ukuguguleka kwenhlabathi, i-Cavitation, i-Galling, ukugqwala. | I-Tungsten Carbide, I-Stellite, 316SS, Izinsimbi Eziqinile. |
| Isiqu | Idlulisela ukunyakaza ukusuka ku-actuator kuya kulungu elivalayo. | Umhuzuko, Ukukhathala, Ukugqwala. | I-17-4PH Insimbi Engagqwali, Izinsimbi Ze-Nitrided, Ama-alloys Amelana Nokugqwala. |
| Ikheji | Iqondisa ipulaki futhi ilawule izici zokugeleza. | Ukuguguleka Okubi, I-Cavitation, Umsindo/Ukudlidliza. | I-Tungsten Carbide, Stellite, 316SS, Duplex Stainless Steels. |
| Seals & Gaskets | Ivimbela ukuvuza kwangaphandle nangaphakathi. | I-Extrusion, ukuwohloka kwamakhemikhali, ukuguga kokushisa. | PTFE (Teflon), Grafoil, Elastomers (Viton, EPDM). |
Ezisetshenziswa ezibucayi ezitholakala kuwoyela negesi, ukukhiqiza amandla, kanye nezimboni zokucubungula amakhemikhali, i-tungsten carbide icaciswe ezingxenyeni zokunquma ngenxa yayo:
Ukumelana Nokuguguleka Okukhethekile: Ukumelana nesihlabathi nezinye izinhlayiya eziqinile emfudlaneni owuketshezi.
Ukumelana Okuvelele kwe-Cavitation: Ukuqina kwayo kuvimbela ukulahleka kwezinto ezibonakalayo ekufakeni amabhamuza omhwamuko.
Amandla Okucindezela Okuphezulu: Ukumelana ne-deformation ngaphansi kwengcindezi ephezulu.
Ukumelana Okuhle Kwe-Galling: Uma kubhangqwe ngento ehambisanayo, kunciphisa ingozi yokubamba.
Kafushane, I-Valve Yangaphakathi yinhliziyo ye-valve. Ukukhetha kwabo, ikakhulukazi ukukhethwa kwezinto ezingagugi njenge i-tungsten carbide ezingxenyeni zokunquma, isinqumo sobunjiniyela esibalulekile esinquma ngokuqondile ukusebenza kwe-valve, impilo yesevisi, kanye nokuphepha kwesistimu iyonke ezimeni zokusebenza eziyinselele.