scope:

This Standard applies to centrifugal pumps that require a driver-rated output of 373 W (1/2 hp) nominal up to and including 7.46 kW (10 hp) nominal.

This Standard specifies the method for testing centrifugal pumps to determine the following characteristics:

(a) the total head produced by the pump versus the pump rate of flow;

(b) input power versus pump rate of flow; and

(c) efficiency versus pump rate of flow.

This Standard does not apply to centrifugal pumps for the following services:

(a) decorative fountain pumps;

(b) fire pumps as defined in NFPA Standard 20;

(c) hydromassage pumps as defined and installed in accordance with CSA Standard C22.2 No. 218.2;

(d) jet pumps;

(e) multi-stage pumps;

(f) recreational vehicle pumps;

(g) seal-less pumps;

(h) solids-handling pumps;

(i) sprinkler pumps for residential lawn watering applications;

(j) deep well submersible pumps;

(k) submersible-type effluent pumps up to and including 1.49 kW (2 hp);

(l) submersible- and column-type sump pumps for residential applications; and

(m) utility or contractor pumps.

This Standard does not cover the measurement of motor efficiency, nor does it specify the minimum efficiency required of the motor used to drive a pump, whether the motor is a separate motor coupled to the pump or is mounted on a common shaft with the pump.

Note: For motor efficiency measurements, refer to CSA Standards C390 and CAN/CSA-C747.

The values given in SI (metric) units are the standard. The values given in parentheses are for information only.