The diagram relates particularly to the centrifugal pumps made by the Morris Machine Works of Baldwinsville, N. Y.; the principle is, however, of general application. In making use of the diagram each number represents a particular design. See Note.
How to determine right-or left-hand pumps. If, when standing at the suction end of pump, looking over the pump shell toward the pulley, the top of the shaft revolves from right to left, or against the hands of clock, the pump is right-hand, and from left to right, or with the hands of clock, it is left-hand.
Directions for erecting and running centrifugal pumps. Place the pump as near suction water as possible, and limit suction lift to 20 feet or 25 feet.
Erect the pump so that the pump shaft is level; in bolting to foundation be careful that the frame is not sprung. See that the bearings are clean and well oiled. The suction pipe and stuffing-boxes must be air-tight.
Never use pipes smaller than those represented by the flanges on the pump; avoid elbows or bends as much as possible; if discharging long distances, use pipes one or two sizes larger than ordinary.
Whether a foot valve is used or not, a strainer should be attached to the suction pipe to prevent large substances from entering, that might choke or clog the pump, but be careful that suction area is not contracted.
Note.—In viewing diagrams on page 225 you are supposed to stand at the outer half of pump shell looking over pump towards the pulley or engine, if directly connected. The pump can be swiveled around the frame, so that, for instance, if you order pump per diagram No. 50, it can after receipt be made Nos. 51, 52 or 53.
Run the pump in proper direction, as indicated by arrows cast on the pump shell.
If the combined length of suction and discharge pipe is more than 50 feet, the speed must be increased to overcome friction.