Relief valve on high pressure soot blower line, Springwells Station, Detroit water supply system
Description:
View of relief valve on high pressure soot blower line, 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. Relief valve on high pressure soot blower line. No. 5. Date: Nov. 17, 1936. Photo by Manning Bros., Inc."
