SIHI Dual Stage Liquid Ring Vacuum Pump. Model: 55320. S/N: C0553391501. Vacuum (dry air/saturated air): 20 in. Hg. Airflow (dry air/saturated air): 150/258 cfm. Average service liquid flow: 13 gpm. Seal option: single, mechanical. Capacity: 290 ACFM @ 1750 rpm and 25 hp. Emerson Motor, 25 hp, 1775 rpm, 230/460 V, 59/29.5 amps, 60 Hz, 3 phase. ITT Standard Shell and Tube Heat Exchanger, Model: SSCF, shell MAWP: 225 psi @ 450 °F, tube MAWP: 150 psi @ 450 °F. Gasport Welding & Fabricating Tank- 14 Gallon, S/N: 4769-05-1, 16 psig @ 200 °F. Inlets: (1) 2-1/2 in. dia. flanged, 4-bolt port, (2) 2 in. dia. flange, 4-bolt port. Outlets: (1) 1 in. dia. flange, 4-bolt port, (2) 2 in. dia. flanged, 4-bolt ports. SIHI "LPH" series liquid ring vacuum pumps have one moving part, the impeller and shaft assembly, and no internal metal to metal contact. Features include: 316 stainless steel wetted parts, low vibration & noise levels, low starting torque and versatility in the ability to use a variety of liquids to seal the internal clearances. Overall dimensions: 96 in. L x 32 in. W x 57-1/2 in. H.(ACN164).