Relief and safety valve of turbine unit no. 1, located in the subway below the Generator Room; looking south. The safety valve was manufactured by the Chapman Valve Company of Springfield, Massachusetts. It is identical to the adjacent safety valve for turbine unit no. 2 (1989)
Relief and safety valve of turbine unit no. 1 (1989)
Water filters, water from which is used to cool bearings of turbine-generator units in Generator Room above; looking north. This water filter is for turbine-generator unit no. 1, and is located in the subway (1989)
View in subway showing air filters for unit turbine-generator unit no. 3; looking north. To the left is opening through wall which brings fresh air into the filters; this opening is above the tailrace (1989)
View in subway of relief and safety valves for turbine unit no. 3; looking northeast. To right is entrance to Basement Room B-4 (1989)