Njengesixhobo esiqhelekileyo kwintsimi yoshishino, iivalve zisetyenziselwa ukulawula ukuhamba kwamanzi okanye iigesi. Ngokukhawuleza kwenkqubo yoshishino lwehlabathi, imfuno yentengiso yevalvu iyakhula unyaka nonyaka. Eli nqaku liza kuhlalutya isabelo semarike kunye nokuhanjiswa kwengingqiabavelisi bequmrhu levalvungokwembono yobungcali.
1. Isabelo semarike
Isabelo semarike sabavelisi bequmrhu levalvu sichatshazelwa ikakhulu yimiba efana nobukhulu beshishini, umgangatho wemveliso, ukusungula izinto ezintsha zobuchwepheshe kunye nokuthengisa. Phakathi kwazo, ubungakanani beshishini kunye nomgangatho wemveliso zizinto eziphambili ezichaphazela isabelo semarike. Amashishini amakhulu adla ngokuba namandla obugcisa obuqinileyo kunye nomthamo wemveliso ukuhlangabezana neemfuno zabathengi bomgangatho wevalvu kunye nohlobo. Ukwenziwa kwezinto ezintsha zobuchwepheshe kunye nokuthengisa zizinto ezibalulekileyo kumashishini ukuba akhuphisane ngesabelo semarike. Amashishini aneenzuzo zobugcisa kunye nesakhono sentengiso kaninzi anokufumana isabelo esiphezulu semarike kukhuphiswano oluqatha lwemalike.
2. Ukuhanjiswa kwengingqi
Ukuhanjiswa kwengingqi yabavelisi bequmrhu le-valve kuneempawu ezithile. E-China, abavelisi beevalvu bagxile ikakhulu kwiindawo eziselunxwemeni nakwiindawo eziphuhlisiwe kwimizi-mveliso engaphakathi. Iindawo ezingaselunxwemeni ezifana neShanghai, iJiangsu, iZhejiang kunye nezinye iindawo, ezinomxokelelwane ogcweleyo wemizi-mveliso kunye neemeko ezifanelekileyo zendlela, zilungele uphuhliso lwamashishini evalvu. Iindawo eziphuhliswe kwimizi-mveliso yangaphakathi, njengeSichuan, iHenan, iHubei kunye nezinye iindawo, nazo zinamashishini amaninzi okuvelisa iivalvu. Ukongeza, imakethi yevalvu yehlabathi ikwabonisa iimpawu ezithile zokuhanjiswa kwengingqi. Ngokomzekelo, iUnited States, iJamani, iJapan kunye namanye amazwe aphuhlileyo kumashishini, i-valve ikhulile ngakumbi, kunye nenani elithile labenzi beevalvu.
Okwesithathu, ipateni yokhuphiswano lwemarike
Ipateni yokhuphiswano lwemarike yevalvu ibonisa iimpawu ezithile. Ngakolunye uhlangothi, ukhuphiswano lwemarike lubukhali, ngakumbi imarike yevalve ephantsi, kwaye ipateni yokhuphiswano isasazwe kakhulu. Kwelinye icala, ukhuphiswano lwentengiso yevalvu ephezulu lugxile kakhulu, ikakhulu luxakeke ngamashishini athile amakhulu aneengenelo zobugcisa kunye neenzuzo zophawu. Ngokuqiniswa kokhuphiswano lwemarike, ukudityaniswa kunye nokufunyanwa phakathi kweenkampani zevalve kunye nokudityaniswa kwezixhobo kuya kuqhubeka ukwenzeka, kwaye ipateni yokhuphiswano lwemarike iya kuvela ngokuthe ngcembe.
Isishwankathelo, isabelo semarike kunye nokuhanjiswa kwengingqi yabavelisi bequmrhu levalvu kuchatshazelwa zizinto ezahlukeneyo. Abavelisi kufuneka baqhubeke bephucula inqanaba labo lobugcisa, isakhono sokwenza izinto ezintsha kunye nobuchule bokuthengisa ukuze kuphuculwe isabelo semarike kunye nokhuphiswano. Ngexesha elifanayo, xa kuthengwa i-valve, abathengi kufuneka bahlawule ingqalelo kwisabelo sommandla kunye nesabelo semarike somenzi ukuqinisekisa umgangatho kunye nokusebenza kwevalve.
Ixesha lokuposa: Sep-08-2023
