Vahn-Tech Series 100, 200, 300 & 400 are rubber lined concentric butterfly valve designed as economic solution for lower pressure isolation applications where weight and face-to-face requirements are valued greater than the rated flow capacity.
Vahn-Tech Series LBFV is a fluoropolymer lined concentric butterfly valve designed for chemically corrosive process medias. The design features enhanced seat energizer along with mechanically loaded packing arrangement to mitigate any media propagation past the stem.