Yintoni iValve yeSango le-NRS
I-NRS (Isiqu Esingakhuphukiyo)iivalvu zesangoinesiqu esijikelezayo xa sisetyenziswa—isiqu asihambi phezulu okanye ezantsi ngaphandle njengoko ivalvu ivulwa okanye ivaliwe.
Ezona mpawu:
- ①Iimisonto yesiqu ingaphakathi komzimba wevalvu, xa idibene nolwelo.
- ②Uyilo oluncinci—lulungeleiindawo ezixineneyookanye ukufakwa komhlaba.
- ③Isetyenziswa rhoqo kwiiinkqubo zamanzi zikamasipala, ukunkcenkceshela, kunye nemibhobho yamanzi omlilo.
Izinto ekufuneka ziqwalaselwe:
- ①Iindawo yevalvu ayibonakalingaphandle—kufuneka uthembele kwisalathisi sendawo okanye kwimemori.
- ②Ekubeni isiqu sibonakala kwimidiya engaphakathi kwivalvu,umhlwaingaba yingxaki yokugcinwa kwezinto kwiindawo ezithile.
Yintoni iValve yeSango le-OS&Y
Iivalvu zesango le-OS&Y (Outside Screw and Yoke) zinesiqu esiphakamayo nesehlayo ngokubonakalayo njengoko ivili lesandla lijikeleziswa. Iintambo zingaphandle komzimba wevalvu, zahlulwe kulwelo.
Ezona mpawu:
- ①Iindawo yevalvu kulula ukuyibona—ukuba isiqu siphezulu, ivalvu ivuliwe; ukuba iphantsi, ivaliwe.
- ②Isiqu sikhuselekile kwimidiya, nto leyo enciphisa amathuba okubola.
- ③Iyafuneka ngabaninziimigangatho yokukhusela umlilo(NFPA) kwiinkqubo zokutshiza umlilo.
Izinto ekufuneka ziqwalaselwe:
- ①Ifuna indawo ethe nkqo ukuze ilungele isiqu esinyukayo.
- ②Isetyenziswa rhoqongaphezulu komhlaba, kumagumbi oomatshini, okanye apho kufuneka khona ukuqinisekiswa okubonakalayo.
I-NRS VS OS&Y: Uthelekiso olusecaleni
| Uphawu | Ivalvu yeSango le-NRS | Ivalvu yeSango le-OS&Y |
|---|---|---|
| Ukuhamba kweStem | Ngaphakathi, ayiphakami | Ngaphandle, isiqu siyaphakama njengoko ivalvu ivuleka |
| Isalathisi sendawo ebonakalayo | No | Ewe |
| Imfuneko Yesithuba | Incinci, ingcono xa isetyenziswa phantsi komhlaba | Ifuna ukucaciswa ngokuthe nkqo |
| Ukumelana nokugqwala | Isesichengeni ngakumbi (isiqu sidibana nolwelo) | Ukhuseleko olungcono (isiqu sahlulwe) |
| Ityala elifanelekileyo lokusetyenziswa | Iipayipi zamanzi ezingaphantsi komhlaba, ii-hydrants | Iinkqubo zokutshiza umlilo, amagumbi oomatshini |
| Ukusetyenziswa koKhuseleko loMlilo | Ayikhuthazwa yi-NFPA kwiinkqubo zomlilo | Umgangatho okhethwa yi-NFPA kwiinkqubo zomlilo |
| Ulondolozo | Kunzima kancinci ukuyihlola okanye ukuyilungisa | Kulula ukuyijonga ngamehlo kwaye uyigcine |
Ziphi iiValve ze-OS&Y kunye ne-NRS ezisetyenziswa rhoqo?
Iivalvu zeSango le-NRS
- ①Iipayipi zamanzi ezingaphantsi komhlaba
- ②Ukwahlulwa kwamanzi
- ③Iinkqubo zokunkcenkceshela
- ④Iinkqubo zoshishino ezinesithuba esilinganiselweyo
Iivalvu zeSango le-OS&Y
- ①Iinkqubo zokutshiza umlilo (ezihambelana ne-NFPA)
- ②Amagumbi enjini yolwandle
- ③Iifektri zokucoca kunye nezityalo zeekhemikhali
- ④Iindawo zokucoca amanzi
Kutheni Kubalulekile Kwizicelo Zolwandle Nomlilo
- ①Kwindlela yokukhusela umlilo, ukuqinisekiswa okubonakalayo kubalulekile—iivalvu ze-OS&Y ziyathandwa.
- ②Kwiinkqubo zasemanzini, apho indawo incinci kwaye iimeko zinzima, iivalvu ze-NRS zinokuba zezona zifanelekileyo, kodwa zifuna izinto ezimelana nokugqwala.
Ixesha leposi: Julayi-10-2025