Lee Industries Full-Jacketed Steam Kettle- 50 Gallon. Model: 50D7S. S/N: C33404. Nat'l Bd: 6705. MAWP jacket: 100 psi at 338 °F. MDMT jacket: -20 °F at 100 psi. Features include (2) flip-top covers and mixer bridge with port. All Lee kettles come with the traditional high-polished sanitary stainless steel finish. Inlets: (1) 3/4 in. NPT (female, jacket), (4) 2 in. 'S' line. Outlets: 3/4 in. NPT (female, jacket), (1) 2 in. 'S' line (tank discharge). Overall dimensions: 33 in. diameter x 55 in. H. (ACN200-96).