mfg date: 2011, serial # 147973. High pressure discharging valve with special inlet desgin for pellets and granular product. Closed end stainless steel 16- VANE, shallow pocket rotor with axial seals and seal purge tubing. Stainless steel housing Includes stainless steel conical leakage gas separator on inlet, pneumatic conveying adapter with stand. Chain driven by a 5 HP, 460V, 1750RPM, 60HZ, 3PH Baldor motor with Quantis inline speed reducer. Valve dimensions: 14-1/2" inside flange diameter. 21" o.d. outlside flange diameter. Flange-to-flange height on valve only is 29-1/4". Demonstration video available.