California Hydronics Skid Mounted Hot Water Set. Bell & Gossett Shell and Tube Heat Exchanger, Model: SU-65-2, Ref. No’s: 93Y77202-03-3 and 5-260-06-060-001, Nat’l Bd: 30030, tube material: copper, number of passes: 2, tube dimensions: 5/8 in. dia. x 5 ft. L, heat transfer surface area: approx. 19.6 sq. ft., tube volume: 2 gal. Bell & Gossett Shell and Tube Heat Exchanger, Model: SU-85-4, Ref. No’s: 93Y77202-01-3 and 5-261-08-060-033, Nat’l Bd: 30027, tube material: copper, number of passes: 4, number of tubes: 44, tube dimensions: 5/8 in. dia. x 5 ft. L, heat transfer surface area: approx. 41 sq. ft., tube volume: 3.5 gal. (2) Condensate Tanks- 10 Gallon, MAWP: 125 psi at 210 °F. Unit is equipped with (2) electro-pneumatic valves and (2) Jordan pressure relief valves. (2) Bell & Gossett Centrifugal Pumps, Model: 11/28C, MAWP: 175 psi, capacity: 60 gpm at 50 ft, 1800 rpm maximum. (2) Baldor Industrial Motors, 3 hp, 1,725 rpm, 230/460 V, 8.2/4.1 amps, 60 Hz, 3 phase. Inlets: (1) 2 in. threaded fitting(female), (1) 4 in. dia. pipe (steam). Outlets: (1) 2 in. dia. pipe (steam), (1) 2 in. dia. pipe (product). Overall dimensions: 8 ft. 4 in. L x 4 ft. 4 in. W x 7 ft. 1 in. H.