50 GPM @ 34 TDH Hastelloy C 276 centrifugal pump. MFD by Durco, model Guardian, size BH1.5x1-62/4, Serial # 440519, built 1997. Alloy DC3 (steel). Driven by 5 hp 3/60/230/460V 3600 rpm TEFC class I, group D, division 2 motor. Mounted on steel base type A-standard, size 139.