Reducing valve for evaporators, Springwells Station, Detroit water supply system
Description:
View of reducing valve for evaporators, Springwells Station, Detroit water supply system. Printed on front: "City of Detroit. Department of Water Supply. Springwells Station. Eight inch high pressure corrugated steam piping and related work. Contract PC-99. PWA 7361-J. Pittsburgh Piping & Equipment Co., contractors. 3/4" reducing valve for evaporators. No. 4. Date: Nov. 17, 1936. Photo by Manning Bros., Inc."
