Ubunzima be-aivelufa butterflyibaluleke kakhulu kuyilo lonke lwenkqubo. Ichaphazela ukufakela, ukugcinwa, kunye nokusebenza kakuhle kwenkqubo. Eyaziwayo ngokuyila kwayo kunye nokulawula ukuhamba kakuhle, iivalve zebhabhathane ziyimfuneko kwizicelo ezahlukeneyo ukusuka kunyango lwamanzi ukuya kwi-oyile kunye negesi.
1. Isishwankathelo sobunzima beValve yeButterfly.
Ubunzima bevalve yebhabhathane busekelwe kwisimbuku sabo bonke ubunzima. Ubunzima bevalve yebhabhathane buyahluka ngokuxhomekeke kwisakhiwo kunye nokucwangciswa kwevalve yebhabhathane.
1.1 Ulwakhiwo olusisiseko
A ivelufa butterflyibandakanya umzimba wevalve, idiski, isiqu, isitulo, kunye ne-actuator. Umzimba we-valve ngumzimba oyintloko, ojongene nokudibanisa i-flange yombhobho, ukwenza i-loop evaliweyo, kunye nezindlu zamanye amacandelo. I-disc ijikeleza i-axis ephakathi, kwaye oku kujikeleza kuvumela i-valve ukuba ivule okanye ivale, ngaloo ndlela ilawula ukuhamba kwamanzi okanye iigesi. I-valve stem idibanisa i-disc kwi-actuator, enokuthi iqhutywe ngesandla okanye ngokuzenzekelayo. Isihlalo siqinisekisa ukuvala okuqinileyo ukukhusela ukuvuza.
Ukubaluleka kobunzima beValve
-Ukuthathela ingqalelo
Ubunzima beValve budlala indima ebalulekileyo kuyilo lwenkqubo. Umthamo wokuthwala wesakhiwo esixhasayo kufuneka siqwalaselwe ngexesha loyilo. Iivalve ezinzima zinokufuna inkxaso eyongezelelweyo, eyandisa ubunzima bofakelo.
-Ufakelo kunye noLondolozo
Iivalvu ezikhaphukhaphu ngokubanzi zenza lula ukufakela kunye nokunciphisa iindleko zabasebenzi. Bafuna ukuphathwa okuncinci kunye nenkxaso, ukwenza ukugcinwa kufikeleleke ngakumbi kwaye kusebenze. Oku kulula ukugcinwa kunokunciphisa ixesha lokuphumla kunye neendleko zokusebenza eziphantsi.
-Impembelelo yoMsebenzi
Iivalvu ezikhaphukhaphu zinokubonelela ngamaxesha okuphendula ngokukhawuleza. Ukukhethwa koyilo lwesakhiwo kunokwandisa ukusebenza, ukuqinisekisa ukuba i-valve ihlangabezana neemfuno ezithile zokusebenza. Umzekelo, iivalvu zebhabhathane zikhaphukhaphu kuneevalvu zesango lemveli, ngoko ke iivalvu zebhabhathane zinokuphucula ukusebenza kakuhle kweenkqubo zokulawula ulwelo.
-Ukuqwalaselwa kweendleko
Ubunzima bevalve buchaphazela iindleko zayo ngeendlela ezininzi. Iivalvu ezinzima zinokuba neendleko eziphezulu zokuthumela ngenqanawa kunye nokuphatha. Ukongezelela, izinto ezisetyenziselwa ukuvelisa zinokuchaphazela ixabiso elipheleleyo. Ukukhetha ubunzima be-valve efanelekileyo kunokugcina iindleko ezibalulekileyo, zombini ngokuthengwa kokuqala kunye nokugcinwa kwexesha elide.
2. Itshathi yobunzima beValve yeButterfly
| DN | INCH | Ubunzima kg | Ubunzima kg | |||||
| Uhlobo lwewafer | Uhlobo lweLUG | Uhlobo lweFlange | ngesandla | Ibhokisi yegiya | ||||
| DN50 | 2” | 2.6 | 3.8 | 8.9 | 0.4 | 4.2 | ||
| DN65 | 2-1/2” | 3.4 | 4.7 | 11.9 | 0.4 | 4.2 | ||
| DN80 | 3” | 4.0 | 5.2 | 13.1 | 0.4 | 4.2 | ||
| DN100 | 4” | 4.6 | 7.9 | 15.5 | 0.4 | 4.2 | ||
| DN125 | 5” | 7.0 | 9.5 | 19.9 | 0.7 | 4.2 | ||
| DN150 | 6” | 8.0 | 12.2 | 22.8 | 0.7 | 4.2 | ||
| DN200 | 8” | 14.0 | 19.0 | 37.8 | - | 10.8 | ||
| DN250 | 10” | 21.5 | 28.8 | 55.8 | - | 10.8 | ||
| DN300 | 12” | 30.7 | 49.9 | 68.6 | - | 14.2 | ||
| DN350 | 14” | 44.5 | 63.0 | 93.3 | - | 14.2 | ||
| DN400 | 16” | 62.0 | 105 | 121 | - | 25 | ||
| DN450 | 18” | 95 | 117 | 131 | - | 25 | ||
| DN500 | 20” | 120 | 146 | 159 | - | 25 | ||
| DN600 | 24” | 170 | 245 | 218 | - | 76 | ||
| DN700 | 28” | 284 | - | 331 | - | 76 | ||
| DN800 | 32” | 368 | - | 604 | - | 76 | ||
| DN900 | 36” | 713 | - | 671 | - | 88 | ||
| DN1000 | 40” | 864 | - | 773 | - | 88 | ||
Ukuhlelwa ngokoHlobo
Uhlobo lwevalve yebhabhathane luchaphazela ubunzima bayo kunye nokufaneleka kwesicelo. Itheyibhile yobunzima bevalve yebhabhathane ihlela ivalve ibe ziindidi ezintathu eziphambili, nganye ineempawu ezahlukeneyo kunye nokusetyenziswa.
Uhlobo lweWafer
Iivalve zebhabhathane ezimhlophe zingena nca phakathi kweeflange kwaye zifuna iibholiti ezine kuphela, zithatha indawo encinci. Olu luyilo lunciphisa ubunzima, lwenza iivalvu ezisicaba zilungele usetyenziso apho izithintelo zendawo kunye nobunzima zibalulekile.
Uhlobo lweLug
Iivalve zebhabhathane zeLug zifakela imisonto enokufakwa kusetyenziswa iibholiti, ngaphandle kwamandongomane. Olu luyilo lubonelela ngokunyuka kozinzo kunye nokulula ukugcinwa, ngakumbi kwiinkqubo ezifuna ukuchithwa rhoqo. Ubunzima be-lug butterfly valves buxhomekeke kwizinto ezifana nokubunjwa kwezinto kunye nobukhulu, ezichaphazela iindleko kunye nokusebenza kwazo.
Uhlobo lweFlanged
Iivalve zebhabhathane ezinamaphiko zibonelela ngonxibelelwano olukhuselekileyo nolukhuselekileyo kwiinkqubo zombhobho. Uyilo lwazo lubandakanya iiflange ezifakwe ngokuthe ngqo kumbhobho, okwandisa ukuzinza kunye nokuchasana nokuvuza. Nangona i-valve ene-flanged ithande ukuba nzima, ukuqina kunye namandla abo kubenza bafanelekele ukusetyenziswa koxinzelelo oluphezulu.
Isishwankathelo
Ukuqonda ubunzima beevalvu zebhabhathane kubalulekile ekuphuculeni uyilo lwenkqubo kunye nokusebenza. Ubunzima beValve bunokuchaphazela ukufakela, ukugcinwa, kunye nokusebenza kakuhle. Ngokuqwalasela ubunzima bevalvu, iinjineli zinokwenza izigqibo ezinolwazi ezilungelelanisa ukusebenza, ukuqina, kunye neendleko. Oku kuqinisekisa ukuba ivalve ekhethiweyo ihlangabezana neemfuno ezithile zesicelo.
"Ukhetho olufanelekileyo lwevalve lubandakanya ukuphonononga iimfuno zesicelo ngokwembono yobungakanani bevalve, uyilo lwenkqubo, iipropathi zezinto eziphathekayo, iimfuno zofakelo kunye nokugcinwa, iindleko zeendleko kunye nokuthotyelwa kokulawula."