N'oge na-adịbeghị anya, NSEN Valv mere nnwale mmiri nnu na-anọpụ iche nke valvụ ahụ, ma gafere ule ahụ nke ọma n'okpuru akaebe nke TUV. Agba e ji mee valvụ a nwalere bụ JOTAMASTIC 90, ule ahụ dabere na ọkọlọtọ ISO 9227-2017, oge ule ahụ na-ewekwa awa 96.

N'okpuru ebe a, m ga-akọwapụta ihe mere e ji mee ule NSS n'ụzọ dị mkpirikpi,

Nnwale ịgba nnu na-eme ka gburugburu ebe oke osimiri ma ọ bụ ihu igwe nke ebe mmiri dị nnu dị, a na-ejikwa ya enyocha iguzogide nchara nke ngwaahịa, ihe na akwa nchekwa ha.

Ụkpụrụ nnwale nnu na-akọwapụta nke ọma ọnọdụ ule ahụ, dịka okpomọkụ, iru mmiri, ntinye sodium chloride solution na uru pH, wdg, ma na-enyekwa ihe achọrọ maka teknụzụ maka arụmọrụ nke ụlọ nnwale nnu. Ụzọ ndị e si ekpebi nsonaazụ nke nnwale nnu gụnyere: usoro ikpe ọkwa, usoro ikpe nha, usoro ikpe ọdịdị corrosion, na usoro nyocha data corrosion statistical. Ngwaahịa ndị chọrọ nnwale nnu bụ ụfọdụ ngwaahịa ígwè, a na-enyochakwa iguzogide corrosion nke ngwaahịa ndị ahụ site na nnwale.

Nnwale gburugburu ebe a na-agba nnu nke e ji aka mee bụ iji ụdị ngwa nnwale nwere igbe nnwale oghere-nnu, n'ime oghere olu ya, a na-eji ụzọ arụ ọrụ aka emepụta gburugburu ebe a na-agba nnu iji chọpụta ụdị iguzogide nchara nke ngwaahịa ahụ. Ma e jiri ya tụnyere gburugburu ebe obibi, ntinye nnu nke chloride na gburugburu ebe a na-agba nnu nwere ike ịdị ọtụtụ ma ọ bụ iri ugboro ọdịnaya nnu nke gburugburu ebe obibi nkịtị, nke na-eme ka ọnụego nchara dịkwuo elu nke ukwuu. A na-eme nnwale nnu nke ngwaahịa ahụ ma nweta nsonaazụ ya. Oge ahụ na-ebelatakwa nke ukwuu. Dịka ọmụmaatụ, ọ bụrụ na a nwalee ihe nlele ngwaahịa na gburugburu ebe a na-ekpughe ihe, ọ nwere ike were otu afọ ichere maka nchara ya, ebe ule ahụ n'okpuru ọnọdụ gburugburu ebe a na-agba nnu nke e ji aka mee na-ewe naanị awa 24 iji nweta nsonaazụ yiri ya.

Nnwale ịgba nnu nke na-anọpụ iche (nnwale NSS) bụ ụzọ nnwale nchara ngwa ngwa kachasị mbụ ma a na-ejikarị eme ihe. Ọ na-eji mmiri nnu sodium chloride 5%, a na-agbanwe uru pH nke ngwọta ahụ na oke neutral (6-7) dị ka ngwọta ịgba. Okpomọkụ nnwale ahụ bụ 35℃, a chọrọkwa ka ọnụego sedimentation nke mmiri nnu dị n'etiti 1~2ml/80cm²·h.