Unused Dresser/Roots, Model/Size 01b-75 Centrifugal Blower. Tag reads, rated flow 42,670 ACFM. Max working psi 17.9 psig. Case design psi 25 psig. Rated discharge psi 28.5 psia. Max working temp 255 Deg F. Case design temp. 400 Deg F. Rated discharge temp. 244 Deg F. Max continuous speed 7651 rpm. Critical speed 3000 rpm. Rated speed 7651 rpm. Min. continuous speed 7651 rpm. Hydro test 26.8pPsig. Rated power 2617 bhp. On a skid with Power Oil lube system for all components with two 7.5hp motors and Lufkin N1802c speed increaser. With Siem 3000 hp electric motor. The dimensions are 35' long x 11'1" wide x 8'6" tall and the weight is 58,000 lbs dry.