NSV finished the wafer dual plate check valve with Ductile Iron material order,that's for replace 3Z valves project at the end user of MOBARAKEH STEEL in IRAN(2010y),it means that our NSV brand valves quality approved by this user.
At 2014,NSV brand valves had success supplied to this end user,these industrial valves are still working very well,and the user thought NSV valves same or better than Korea brand quality,certainly that price also much more competitive,so it can accept NSV valves replace with other brand valves for previous project.
Here we also thanks for the NSV teams and also thanks for the customer supporting.
Bellows are pic.for reference:
3Z DWG:
