Ngokunzulu ngokubanzi kohlaziyo lwezoqoqosho, ingxelo yophando lwemarike ye-2018 malunga neevalvu zensimbi ezingenasici zibonisa ukuba iivalve zensimbi ezingenasici kwiimarike zenze inkqubela enkulu ngokubhekiselele kubungakanani bemveliso, umgangatho kunye nesabelo semarike Imbonakalo yemarike yevalve yensimbi engenasici iyaqhubeka nokwenza kakuhle, ngentelekelelo yokuba indlela kule minyaka imbalwa izayo iya kuhamba ngendlela enkulu nenamandla.

Iivalve zensimbi ezingenasici ziye zaba yimfuneko kwiintsuku zethu zokuvelisa, ngakumbi kwishishini leoli, ukusetyenziswa kweevalvu zensimbi engenasici kubalulekile.Njengesiphumo soshishino lwepetrochemical kwiminyaka yakutshanje, umkhwa wophuhliso olukhawulezayo, imfuno yeemveliso zevalvu yensimbi engenasici kunye neentlobo zemfuno nazo ziyanda.Ngapha koko, ingeyiyo kuphela i-petrochemical profession, eminye imisebenzi emininzi kwimfuno yevalvu yentsimbi engenastainless iyanda, uhlobo kunye neemfuno ezisemgangathweni ziphelele ngakumbi.Ukusuka kumgangatho wemveliso ukuya kwinkangeleko yemveliso, iimveliso zevalvu yentsimbi engenastainless yase China zikwimeko engalunganga, ke ngoko zifuna abavelisi abangaphezulu kufuneka bathathele ingqalelo ukuveliswa kwemveliso.Ukuveliswa kwezinto ezintsha yinkqubo ende, ngeli xesha ukugcina imfuno yokuthengisa imveliso yemveli ukukhusela uphando olutsha.

Idatha yokwenziwa kwevalvu yensimbi engenastainless ithelekisa ivalve yentsimbi ukutsho ukhuseleko lokusingqongileyo, inokuphuhlisa isithuba ukuba sibe sikhulu.Kulwakhiwo olukhulu, ivalve yensimbi engenasici inokuphakama, ivalve yentsimbi yokuphoswa ngokuthe ngcembe iyaphela kwintengiso.Udidi lwemveliso yevalvu yentsimbi engenastainless lutyebile kakhulu, nangona ixabiso lemveliso liphezulu, kodwa kunye nokwanda kwemarike kunye nokusetyenziswa kweendidi ezininzi, ixabiso levalve yensimbi engenasici liya kuhla kancinci kancinci.

Ivalve yensimbi engenasici inombono obalaseleyo wophuhliso lwemarike, ingeyiyo kuphela ivalve yensimbi engenasici, iseyimfuno yoshishino yentsimbi engenasici nevalve yentsimbi engenasici, ezi zivalo zimbini ziya kuba yiklasi yokuqala yeevalvu zensimbi engenasici eTshayina.