(Indinganiso yaseMelika, ejwayelekile yaseJalimane, ejwayelekile kazwelonke) umehluko phakathi kwama-valve:
Okokuqala, kusuka kukhodi ejwayelekile yezwe ngalinye kungahlukaniswa: I-GB yizinga likazwelonke, elejwayelekile laseMelika (i-ANSI), elejwayelekile laseJalimane (i-DIN). Okwesibili, ungahlukanisa kusuka kumodeli, imodeli ye-valve ejwayelekile kazwelonke ibizwa ngokuhambisana nezinhlamvu zepinyin zesigaba se-valve. Isibonelo, i-valve yezokuphepha ngu-A, butterfly valve D, diaphragm valve G, check valve H, globe valve J, throttle valve L, sewage valve P, ball valve Q, trap S, gate valve valve Z nokunye.
Akukho ukucaciswa okukhethekile phakathi kwe-valve ejwayelekile yaseMelika, i-valve ejwayelekile yaseJalimane, i-valve ejwayelekile kazwelonke, akukho okunye ngaphandle komehluko phakathi kwezinga lokukhiqiza nezinga lengcindezi, impahla yomzimba we-valve nezinto zangaphakathi kulula ukusho, akukho okungaphezu kwensimbi yensimbi, insimbi yensimbi, insimbi engagqwali, njll. I-American Standard, ngokwesibonelo, isukela ku-125LB kuye ku-2,500 lb (noma i-200PSI kuye ku-6,000 psi). I-API eyinhloko ye-standard, i-ANSI, ibizwa kakhulu nge-API, ama-valve e-ANSI. Ingcindezi ejwayelekile ye-valve yaseJalimane imvamisa i-PN10 iye ku-PN320, isebenzisa i-DIN ejwayelekile; Uma i-valve is flanged, sebenzisa i-flange standard ejwayelekile. Izindinganiso ezinkulu ze-valve zomhlaba zijwayelekile ze-American standard petroleum association API, American standard ANSI standard, German standard DIN, Japanese standard JIS, GB, European standard EN, British standard BS.
Ukukhuluma nje, ama-valve aseMelika aklanyelwe, akhiqizwa, akhiqizwa futhi ahlolwe ngokwamazinga aseMelika. Ama-valve ajwayelekile aseJalimane aklanyelwe, akhiqizwa, akhiqizwa futhi ahlolwa ngokwamazinga aseJalimane. I-valve ejwayelekile kazwelonke, ngokuya ngomklamo ojwayelekile waseChina, ukukhiqiza, ukukhiqiza, ukuthola ama-valve.
Umehluko phakathi kwalezi zinto ezintathu ucishe ube: 1, izinga le-flange alifani; 2, ubude besakhiwo buhlukile; 3. Izidingo zokuhlola zehlukile.
I-valve ejwayelekile yaseMelika, i-valve ejwayelekile yaseJalimane, i-valve ejwayelekile kazwelonke ngaphambi kokufakwa idinga ukwenza ukuhlolwa okudingekayo kwe-valve nomsebenzi wokuhlola, ukuze kuqinisekiswe ukusetshenziswa okujwayelekile esimweni sokusebenza, kodwa futhi nokwenza umsebenzi omuhle ekuphepheni kwesivikelo sebenza. Ingcindezi yokuhlola izoba ingcindezi ephezulu kakhulu yokusebenza, ingcindezi yokusebenza ephansi kakhulu nengcindezi yokusebenza ephansi ngokulandelana. Isenzo esibucayi futhi akukho ukuvuza kwesitimu okuzothathwa njengokufanelekile.
Izinga elijwayelekile lokuhlolwa kwengcindezi yaseMelika: liphindwe ka-1.5 ingcindezi yokuqamba igama, isikhathi sokuhlola ngu-5min, isikhathi sokuhlolwa komzimba we-valve asiphuli, akukho deformation, i-valve ayivuzi amanzi, igeji yengcindezi ayilahli njengokufanelekile. Ngemuva kokuthi ukuhlolwa kwamandla kutholakale, ukuhlolwa kokuqina kwenziwa futhi. Ingcindezi yokuqina kokulingana ilingana nengcindezi yokuzisholo. I-valve ayinakho ukuvuza ngesikhathi sokuhlolwa, futhi igeji yengcindezi ayishiyi ukuze ifaneleke.
Isikhathi sokuthumela: Mar-24-2021