scope:

This Practice covers manufacturing and performance requirements for horizontal centrifugal pumps and their accessories.

Fire water pumps are covered by NFPA 20 and are not covered by this Practice.

Pump Types

Pump types covered by this Practice are broadly classified as overhung or between-bearings.

The following pump types are not included in the scope of this Practice:

a. Close coupled (impeller mounted on the motor shaft)

b. Two-stage overhung

c. Double suction overhung

Service Conditions

Pumps with service conditions within the limits listed below are covered by this Practice:

a. Maximum discharge pressure 35 Barg (500 psig)

b. Minimum pumping temperature 0 C (32 F)

c. Maximum pumping temperature 150 C (300 F)

d. Maximum rotational speed 3,600 rpm

Comment: For services outside these conditions and those that fall within the capabilities of ANSI/ASME pumps, it is recommended that PIP RESP73H be used for purchase of pumps.

Purpose This Practice provides the supplier with requirements for design and manufacture of horizontal centrifugal pumps of 150 kW (200 HP) or larger that are used for water services.

Comment: Water services include condensate, cooling water, demineralized water, utility water, produced water, treated water, etc.