Iivalvu zokukhangela, ezikwaziwa ngokuba ziivalvu ezingabuyiyo (NRVs), ziyinxalenye ebalulekileyo yayo nayiphi na inkqubo yemizi-mveliso okanye yendawo yokuhlala. Zisetyenziselwa ukukhusela umva, ukuqinisekisa ukusebenza kakuhle kwenkqubo kunye nokuthintela umonakalo.

Iivalvu zokukhangela zisebenza ngokufanelekileyo ngokulula. Uxinzelelo oludalwe lulwelo oluqukuqela kwinkqubo yokubhobhoza luvula ivalve, kwaye nayiphi na i-reverse flow ivala ivalve. Ivumela ulwelo ukuba luhambe ngokupheleleyo lungathintelwa kwicala elinye kwaye luvale ngokuzenzekelayo xa uxinzelelo luncitshisiwe. Nangona oku kulula, kukho iintlobo ezahlukeneyo zeevalve zokutshekisha ezinemisebenzi eyahlukeneyo kunye nokusetyenziswa. Wazi njani ukuba loluphi uhlobo lwevalvu yokutshekisha oza kuyisebenzisa emsebenzini okanye kwiprojekthi yakho? Ukukunceda ukuba wenze ukhetho olufanelekileyo, nazi ezinye iinkcukacha kwiintlobo eziqhelekileyo zeevalve zokujonga.

Ivalve yokujonga ujingi
I-White PVC Swing CheckSwing Check Valve isebenzisa i-disc ngaphakathi kwevalve ukuvumela okanye ukumisa ukuhamba kwindlela yokubhobhoza. Xa ulwelo luhamba ngendlela echanekileyo, uxinzelelo lunyanzela i-disc ukuba ivule kwaye igcine ivulekile. Njengoko uxinzelelo luyancipha, i-disc ye-valve ivala, ikhusela ukuhamba okubuyela emva kolwelo. Iivalve zokujonga i-Swing zifumaneka kwiindidi zezinto eziphathekayo, ezibandakanya i-PVC, i-CPVC, icacile, kunye nezoshishino.

Kukho iindidi ezimbini zeevalvu zokujonga ujingi ekufuneka sigxile kuzo:

• I-Top Hinged - Kule valve yokukhangela i-swing, i-disc ifakwe kumphezulu wangaphakathi wevalve ngehenjisi evumela ukuba i-disc ivule kwaye ivale.

• I-Swashplate - Le valve yokukhangela i-swing yenziwe ngendlela evumela ivalve ukuba ivuleke ngokupheleleyo kwaye ivale ngokukhawuleza kuxinzelelo oluphantsi lokuhamba. Ikwenza oku isebenzisa idiskhi emile okwedome elayishiweyo entwasahlobo ukuvumela ivalve ukuba ivale ngokukhawuleza kunevalve enehenjisi ephezulu. Ukongeza, i-disc kule valve yokutshekisha iyadada, ngoko ke ulwelo luhamba phezulu nasezantsi kumphezulu wediski.
Ezi ntlobo zeevalve zokutshekisha zisetyenziswa ngokuqhelekileyo ukukhusela ukukhukula kwiinkqubo zamanzi amdaka kunye nezicelo zokukhusela umlilo. Zisetyenziswa kwiinkqubo ezihambisa ulwelo, iigesi kunye nezinye iindidi zemidiya.

Nyusakhangela ivalve
Iivalvu zetshekhi zokuphakamisa zifana kakhulu neevalvu zeglowubhu. Basebenzisa ipistons okanye iibhola endaweni yeediski ezisetyenziswa ziivalvu zokutshekisha. Iivalvu zetshekhi zokuphakamisa zisebenza ngakumbi ekuthinteleni ukuvuza kuneevalvu zokujonga ujingi. Makhe sijonge ezi zivalo zimbini zokuphakamisa:

• Ipiston – Olu hlobo lwevalve yokukhangela ikwabizwa ngokuba yivalve yokujonga iplagi. Ilawula ukuhamba kolwelo kwiinkqubo zemibhobho ngokusebenzisa isindululo somgca wepiston ngaphakathi kwegumbi levalve. Ngamanye amaxesha i-piston ine-spring eqhotyoshelweyo, enceda ukuba ihlale kwindawo evaliweyo xa ingasetyenziswa.

Ivalve yeBhola yokuJonga iPVC ecacileyo • Ivalve yeBhola – ivelufa yokujonga ibhola isebenza ngokulula ngokusebenzisa umxhuzulane. Xa kukho uxinzelelo olwaneleyo kwi-fluid, ibhola liphakanyiswe phezulu, kwaye xa uxinzelelo luyancipha, ibhola liwela phantsi kwaye livale ukuvula. Iivalve zokujonga ibhola zifumaneka kwiindidi zezinto eziphathekayo kunye neentlobo zesitayela: I-PVC: icacile kunye negrey, i-CPVC: idibeneyo yokwenene kunye ne-compact.

Nyusakhangela iivalvezisetyenziswa kwizicelo ezininzi kumashishini amaninzi. Uya kuzifumana kwiindawo zokuhlala kunye nemizi-mveliso. Zisetyenziswa kwishishini lokutya neziselo, kwishishini le-oyile negesi, nakwishishini laselwandle, ukukhankanya ezimbalwa.

Ivalve yokukhangela ibhabhathane
Ivalve yokukhangela ibhabhathane yahlukile kuba idiski yayo igoqa embindini ukuvumela ulwelo ukuba luhambe. Xa i-flow ibuyiselwa umva, iziqingatha ezibini ziphinda zivuleke ukutywina ivalve evaliweyo. Le valve yokukhangela, eyaziwa ngokuba yivalve yokujonga ipleyiti ephindwe kabini okanye ivalve yokujonga idiskhi, ifanelekile kwiinkqubo zoxinzelelo oluphantsi lolwelo kunye neenkqubo zemibhobho yegesi.

Ivalve yokujonga iglowubhu
Iivalvu zokujonga ukuvala zikuvumela ukuba uqalise kwaye umise ukuhamba kwindlela yokubhobhoza. Ziyahluka kuba zikuvumela ukuba ulawule izithuthi. Ivalve yokujonga iglowubhu ngokuyisiseko yivalve yokutshekisha enolawulo olugqithisayo oluyeka ukuhamba kungakhathaliseki indlela yokuhamba okanye uxinzelelo. Xa uxinzelelo luphantsi kakhulu, i-valve yokutshekisha ivala ngokuzenzekelayo ukukhusela umva. Olu hlobo lwe-valve yokutshekisha lunokusebenza ngokusebenzisa ulawulo lwangaphandle kunolawulo olugqithisiweyo, oku kuthetha ukuba unokuseta i-valve kwindawo evaliweyo kungakhathaliseki ukuba uhamba.

Iivalvu zokujonga iglobhu zezona ziqhele ukusetyenziswa kwiinkqubo zebhoyila, iiplanti zombane, imveliso yeoli kunye nezicelo zokhuseleko oluphezulu.

Iingcamango zokugqibela kwiiValuvu zokuHlola
Xa kuziwa ekuthinteleni ukubuyisela umva, akukho khetho ngaphandle kwevalve yokujonga. Ngoku uyazi kancinci malunga neentlobo ezahlukeneyo zeevalvu zokukhangela, kufuneka ukwazi ukugqiba ukuba yeyiphi eyona ilungileyo kwisicelo sakho.