IV. PUMP APPLICATIONS
C. Sizing and Selecting a Reciprocating Pump
1. In order to properly select and size a reciprocating pump, WGI requires the following information for most applications.
a. Characteristics of the liquid
1) Liquid composition (including % and type of solids present)
2) Outlet and inlet pumping temperature
3) Specific gravity of liquid at outlet and inlet pressures & temperatures
4) The corrosives and/or abrasives present
5) Vapor pressure at pumping temperature
6) Viscosity of liquid at pumping temperature
2. Desired pumping capacity, at pumping temperature, in units of: gallons per minute, barrels per hour, or barrels per day.
a. Whether a future or alternate capacity is contemplated for the pump(s).
3. Pressure conditions required.
a. Liquid pressure at the pump discharge.
b. Liquid pressure at the pump inlet/suction (NPSHA).
c. Whether a future or alternate pressure condition is contemplated for the pump(s).
4. Electrical or other area hazard(s).
5. Flange rating required for the operating pressures and temperatures, if other than standard.
6. Preferred/specified metallurgy of major parts.
7. Driver type, to include power characteristics; electrical voltage/phase/hertz or gasoline/diesel fuel.
8. Space limitations/constraints.
9. Site ambient temperature range.
10. Indoor or outdoor location.
