Ball valves / Needle Valves are used in Nitrogen generation, Storage, transportation, boosters for test benches.
Compressed Air after a certian pressure is dangeorus due to the presence of combustibe Oxygen. So, most of the industries use compressed nitrogen. Nitrogen being abunduntly available in the Air becomes the most viable option as a medium.
2 Way and 3 Way Ball valves are used in CNG refuelling stations.
Flutec valves guarrantee high cycle and durability facilitating refuelling of thousands of vehicles per day.