Posachedwapa, NSEN inali kugwira ntchito pa pulojekiti yatsopano yokhala ndi ma valve 635 a triple offset. Kutumiza ma valve m'magulu angapo, ma valve a carbon steel atsala pang'ono kutha, ma valve a steel stainless akadali kupangidwa. Imeneyi idzakhala pulojekiti yayikulu yomaliza yomwe NSEN ikugwira ntchito mu chaka cha 2020.

Sabata ino, ma valve atsopano opangidwa ndi kukula kwa WCB DN200 ndi 350 atumizidwa kwa makasitomala.