Handbook of Civil Engineering Calculations

(singke) #1
Capacity, L/s-single -suction pumps

FIGURE 22. Capacity and speed limitations of pumps with the shaft through the impeller
eye. (Hydraulic Institute.)

Related Calculations. Use this procedure for any pump handling water at an
elevated temperature. Consult the Standards of the Hydraulic Institute for capacity curves
of pumps having different types of construction. In general, pump manufacturers who are
members of the Hydraulic Institute rate their pumps in accordance with the Standards,
and a pump chosen from a catalog capacity table or curve will deliver the stated capacity.
A similar procedure is used for computing the capacity of pumps handling volatile petro-
leum liquids. When you use this procedure, be certain to refer to the latest edition of the
Standards.


Capacity, gal/min-single-suction pumps

Capacity, gal/min-double-suet ion pumps

Capacity, L/s -double -suction pumps

Net

position suction

head,

m

Net

positive suction

head,

ft
Free download pdf