Volves for Storage Tank - 2" A.S.A. 300# Flanged end hand operated on-off BAll Valve stainless Steel GR. 351(C.f.8m) with P.T.F.E (Teflon) seat & Teflon gland ring, with internal s.s. 316 with matching flange. Valve tested hydro statically for body at 77.00kg/cm & seat 57.00 kg/cm. for oxygen service oxygen degreased 36 Pieces ready in stock.