Page:Fires and Fire-fighters (1913).djvu/491

TABLE OF NOZZLES FOR TESTING ENGINES, USING SINGLE 50-FOOT LINES OF HOSE.
Note.—Connect Line to Nozzle; Bring Engine to Speed and Regulate Discharge Gate; if Desired Pressure Cannot be Obtained, Use Nozzle ⅛" Smaller or Add Another Length of Hose.

Size	Bore of Pump	Reasonable Capacity, Gallons per Minute[1]	Size of Nozzle Needed to Deliver the Reasonable Capacity at the Desired Pressure at the Engine
			100 Pounds	120 Pounds	140 Pounds	160 Pounds
First	5½"	900	Single 50-foot Line of 3" hose
			2¼"	2¼" or 2"	2"	1⅞" or 1¾"
Second			Single 50-foot Line of 2½" hose
	5"	750	2"	1⅞"	1⅞"	1⅝"
	4¾"	700	1⅞"	1¾"	1¾"	1⅝"
Third	4½"	600	1¾" or 1⅝"	1⅝" or 1½"	1½"	1⅜"
	4¼"	550	1⅝"	1½"	1⅜"	1⅜"
Fourth	4"	500	1½"	1⅜"	1⅜"	1¼"
Fifth	3⅝"	400	1¼"	1¼"	1⅛"	1⅛"

1. Based on about 400' piston travel per minute.