Zintoni iiIivalvu ze-OS&Y
Iivalvu ze-OS&Y (Ngaphandle kweScrew & Yoke) luhlobo lwevalvu yemizi-mveliso eyenzelwe ukulawula ukuhamba kwamanzi ngokuchanekileyo kwiinkqubo zoxinzelelo oluphezulu. Uyilo lwazo olukhethekileyo lunesiqu esinemisonto esihamba phezulu nasezantsi ngaphandle komzimba wevalvu, kunye nendlela yejoko egcina isiqu sizinzile. Uphawu olubonakalayo lweevalvu ze-OS&Y yindawo ebonakalayo yesiqu: xa isiqu siphakanyisiwe, ivalvu ivulekile; xa ihlisiwe, ivaliwe. Esi sibonakaliso sibonakalayo sibenza bafaneleke kwizicelo apho ukuqinisekiswa kwesimo sevalvu esicacileyo kubalulekile, njengeenkqubo zokukhusela umlilo, iinethiwekhi zokubonelela ngamanzi, kunye nemibhobho yemizi-mveliso.
Iintlobo zeevalvu ze-OS&Y
Iivalvu ze-OS&Y ziyafumaneka ngeendlela ezimbini eziphambili, nganye ilungele usetyenziso oluthile:
1. Ivalvu yeSango le-OS&Y
–Uyilo: Ibonisa isango elimile okwesikwere elihamba ngokuthe nkqo ukuya kumsinga wokuqalisa okanye wokumisa imidiya.
–Umsebenzi: Ilungele ukusetyenziswa kokuvula/ukucima apho uxinzelelo luncitshiswa khona.
–Ukusetyenziswa Okuqhelekileyo: Ukusasazwa kwamanzi, iinkqubo zokutshiza umlilo, kunye nemibhobho yeoyile/igesi.
2. Ivalvu yeGlobe ye-OS&Y
–Uyilo: Isebenzisa indlela yediski kunye nesihlalo ukulawula ukuhamba kwentshukumo ethe tye.
–Umsebenzi: Igqwesa ekulawuleni okanye ekulawuleni amazinga okuhamba kwamanzi.
–Ukusetyenziswa Okuqhelekileyo: Iinkqubo zomphunga, i-HVAC, kunye neendawo zokucubungula iikhemikhali.
Xa ufuna ezi valve, soloko usebenzisana nomntu othembekileyoUmenzi weValve yeSangookanyeUmvelisi weValve yeGlobeukuqinisekisa umgangatho kunye nokuthotyelwa kwemigangatho yoshishino.
Iingenelo zeevalvu ze-OS&Y
Iivalvu ze-OS&Y zithandwa kakhulu ngenxa yokuthembeka kwazo nokuqina kwazo. Nasi isizathu:
1. Isalathiso seNdawo ebonakalayo
Isiqu esiveziweyo siqinisekisa ngoko nangoko imeko yevalvu, nto leyo enciphisa iimpazamo zokusebenza.
2. Ulwakhiwo Oluhlala Luhleli
Yakhelwe ukumelana noxinzelelo oluphezulu kunye namaqondo obushushu, nto leyo eyenza ukuba ifaneleke kwiindawo ezixineneyo.
3. Ukugcinwa okulula
Uyilo lwejoko luvumela ukuqhaqhwa okulula ngaphandle kokususa ivalvu kumbhobho.
4. Ukuthintela ukuvuza
Iindlela zokuvala eziqinileyo (umz., iigeyithi zokunqumlaIivalvu zesango le-OS&Yokanye iidiski ngaphakathiIivalvu zeglobhu ze-OS&Y) kunciphisa iingozi zokuvuza.
5. Ukuguquguquka
Iyahambelana namanzi, umphunga, ioyile, igesi, kunye nolwelo olubolayo, kuxhomekeke kwizinto ezikhethiweyo ezifana nobhedu, isinyithi esityhidiweyo, okanye intsimbi engatyiwayo.
Ixesha lokukhetha iiValve ze-OS&Y
Iivalvu ze-OS&Y azizozisombululo ezisetyenziswa ngumntu wonke kodwa zibalaseleyo kwiimeko ezithile:
1. Iinkqubo zoKhuseleko eziBalulekileyo
Iinkqubo zokukhusela umlilo (umz., ii-sprinkler) zifuna ukuqinisekiswa okucacileyo kokuvula/ukuvala, okwenzaIivalvu zesango le-OS&Yisiseko esisisiseko solawulo.
2. Izicelo zoxinzelelo oluphezulu
Uyilo lwabo oluqinileyo lujongana noxinzelelo olukhulu kwiindawo zokucoca ioyile, kwizikhululo zamandla, nakwiindawo zamanzi.
3. Ukusebenza rhoqo
Indlela yokusebenza kwesiqu esinemisonto iqinisekisa ukusebenza kakuhle nokuba sele isetyenziswa ngokuphindaphindiweyo.
4. Amashishini Alawulwayo
Amashishini afana namayeza okanye ukucubungula ukutya adla ngokuyalela iivalvu ze-OS&Y ukuba zithobele ucoceko nokhuseleko.
5. Iimfuno zokuTshabalalisa
Khetha iIvalvu yeglobhu ye-OS&Yukuba kufuneka ulawulo oluchanekileyo lokuhamba kwamanzi, njengakwimigca yomphunga okanye kwiinkqubo zokupholisa.
Ukukhetha Umenzi Ofanelekileyo
Ukuze usebenze kakuhle, sebenzisana nabasebenzi abaqinisekisiweyoAbavelisi beValve yeSangookanyeAbavelisi beValve yeGlobeI-WHO:
- Landela imigangatho ye-ASTM, ANSI, okanye ye-API.
- Yenza ngokwezifiso izinto ozifunayo (izixhobo, ubungakanani, ukulinganiswa koxinzelelo).
- Nika iziqinisekiso zovavanyo kunye nenkxaso emva kokuthengisa.
Isiphelo
Iivalvu ze-OS&Yazinamsebenzi kumashishini afuna ukuthembeka, ukhuseleko, kunye nokuchaneka. Nokuba uyayidinga naIvalvu yesango le-OS&Yyokulawula ngokuvula/ngokucima okanyeIvalvu yeglobhu ye-OS&YUkulawula ukuhamba kwamanzi, ukuqonda amandla azo kuqinisekisa ukusebenza kakuhle kwenkqubo. Soloko ubeka phambili umgangatho ngokusebenzisana nabavelisi abathembekileyo ukuhlangabezana neemfuno zakho zokusebenza.
Ixesha leposi: Matshi-06-2025