1994 Refrigeration Valves & Systems Corporation Ammonia Vertical Receiver - 975 Gallon. S/N: 94277. Nat'l Bd: 6704. Inside straight-wall dimensions: 42 in. dia. x 13 ft. 8 in. H. MAWP: 250 psi @ 300°F. MDMT: -20° @ 250 psi. Inlets: (1) 1 in. dia. FNPT fitting (refrigerant), (1) 3/4 in. dia. port (return from cooler). Outlets: (1) 3 in. dia. port (gas return to condenser), (1) 1/2 in. dia. NPT fitting (relief), (1) 2 in. dia. port (refrigerant), (1) 4 in. dia. drain port, (1) 5 in. dia. drain port. Overall dimensions: 4 ft. 7 in. L x 4 ft. 3-1/2 in. W x 18 ft. H. (BH)