Kuvalwa kwevalve kuyincenye lebalulekile yevalve yonkhe, inhloso yayo lenkhulu kuvimbela kuvuza,ivalvusitulo sekuvala siphindze sibitwe ngekutsi yindandatho yekuvala, yinhlangano letsintsana ngco nemkhatsi losephayiphini futsi ivimbela umkhatsi kutsi ungageleti. Uma le valve isetjentiswa, kunetindlela letehlukene tekusakata kulephayiphi, njengekusamanti, igesi, oyili, tindlela tekusakata letiguculako, njll, futsi timphawu temavalvu lehlukene tisetjentiswa etindzaweni letehlukene futsi tingajwayela tindlela letehlukene tekusakata.
TWSValvekukukhumbuta kutsi tintfo tevalve seals tingahlukaniswa tibe tigaba letimbili, lokungukuthi tintfo tensimbi kanye netintfo letingekho ensimbi. Timphawu letingekho tensimbi tivame kusetjentiswa kumaphayiphi ngesikhatsi sekushisa lokujwayelekile kanye nekucindzeteleka, kantsi timphawu tensimbi tinetinhlobo letiningi tekusebenta futsi tingasetjentiswa ngesikhatsi sekushisa lokusetulu. umfutfo lomkhulu.
Irabha leyentiwe incono kunerabha yemvelo ngekumelana ne oyili, kumelana nekushisa kanye nekumelana nekugcola. Ngalokuvamile, lokushisa lokusebenta kwerabha yekwentiwa ngu t .≤150°C, iraba yemvelo ngu t≤60°C, futsi iraba isetjentiselwa kuvala emavalvu e-globe, emavalvu esango, emavalvu e-diaphragm, emavalvu e-butterfly, emavalvu ekuhlola, emavalvu e-pinch kanye nalamanye emavalvu lanemfutfo lomncane PN .≤1MPa.
2. Inayiloni
Nylon has timphawu coefficient friction encane kanye nekumelana lokuhle kwekugcola. Nylon isetjentiswa kakhulu kumavalvu ebhola kanye nemavalvu emhlaba ngekushisa t .≤90°C kanye nekucindzeteleka lokubitwako PN≤32MPa.
PTFE isetjentiswa kakhulu emavalvu globe, emavalvu esango, emavalvu ibhola, njll nge lokushisa t .≤232°C kanye nemfutfo lomncane PN .≤6.4 MPa.
4. Insimbi lephosiwe
Insimbi lephosiwe isetjentiselwa emavalvu esango, emavalvu emhlaba, emavalvu epulagi, njll.≤100°C, umfutfo lobitwako PN≤1.6MPa, igesi kanye nawoyela.
5. Inhlanganisela yeBabbitt
Babbitt inhlanganisela isetjentiselwa ammonia umhlaba valve nge lokushisa t-70 ~ 150°Ckanye nekucindzeteleka lokubitwako PN .≤2.5MPa.
6. Inhlanganisela yelitfusi
Tintfo letisetjentiswa kakhulu tetinhlanganisela telitfusi ngu 6-6-3 welitfusi lelithini kanye nelitfusi le manganese lelingu 58-2-2. I-Copper alloy inekumelana lokuhle nekugcoka futsi ilungele emanti kanye nemphunga ngekushisa t .≤200°Ckanye nekucindzeteleka lokubitwako PN .≤1.6MPa. Ivame kusetjentiswa kumavalvu esango, emavalvu emhlaba, emavalvu ekuhlola, emavalvu epulagi, njll.
7. Insimbi lengagucuki ye-Chrome
Emazinga lavame kusetjentiswa e Chromium stainless steel ngu 2Cr13 na 3Cr13, leseyicinywe futsi yashiswa, futsi inekumelana lokuhle nekugcola. Ivame kusetjentiswa kumavalvu emanti, umfutfo kanye nephethiloli ngekushisa t .≤450°Ckanye nekucindzeteleka lokubitwako PN .≤32MPa.
8. Insimbi lengagcini
Lizinga lelivame kusetjentiswa le chromium-nickel-titanium yensimbi lengagucuki ngu 1Cr18Ni9ti, lenekumelana lokuhle nekugcola, kumelana nekuguguleka kanye nekumelana nekushisa. Ilungele umfutfo kanye naletinye tindzaba letinekushisa t .≤600°C kanye nemfutfo lomncane PN .≤6.4MPa, futsi isetjentiselwa emavalvu emhlaba, emavalvu ebhola, njll.
9. Insimbi ye-nitriding
Lizinga lelivame kusetjentiswa lensimbi ye nitriding ngu 38CrMoAlA, lenekumelana lokuhle nekugcola kanye nekumelana nekuklwebheka ngemuva kwekwelashwa kwe carburizing. Kuvame kusetjentiswa emavalvu esango lesikhulumi samandla ngekushisa t .≤540°Ckanye nekucindzeteleka lokubitwako PN .≤10MPa.
10. Kufaka ibhori
I-Boronizing icubungula ngco indzawo yekuvala kusuka kutintfo temtimba wevalve noma umtimba we-disc, bese yenta kwelashwa kwendzawo ye-boronizing. Indzawo yekuvala inekumelana lokuhle kwekugcoka. Kuba ivalve ye-blowdown yesiteshi samandla.
Uma ivalve isetjentiswa, tintfo lokufanele tinakwe nguleti letilandzelako:
1. Kusebenta kwekuvala kwevalve kufanele kuhlolwe kucinisekisa kusebenta kwayo.
2. Hlola kutsi ngabe indzawo yekuvala yevalve igugile yini, bese uyayilungisa noma uyifake esikhundleni sayo ngekuya kwesimo.
Sikhatsi sekuposa: Jan-04-2023
