Pump Rental Booklet - Catalog - Page 146
Selection Requirement
Before specifying any particular pump type you will require to know
basic facts related to the application. The following points will assist
in assembling the information.
1. General
7. Discharge Friction Head
Quantity required. Nature of service
– short description of application
and environment
To calculate this, the following is
required:Pipe lengths, diameters, materials
and fittings
2. Capacity
State whether total or per unit
3. Suction Static Head
Distance in height between water
surface and pump centre
4. Suction Friction Head
To calculate this, the following is
required:a) Pipe lengths, diameters and
material
b) Details of fittings, eg. bends,
valves, strainers
5. Pressure
Is water surface at atmospheric
pressure; if not, what is the
pressure?
6. Discharge Static Head
Distance in height between pump
centre and discharge
8. Pressure Head
Is end of pipe discharging to
atmospheric pressure; if not, what
is the pressure?
9. Total Head Against Pump
= Total Discharge Head + Total
Suction Head
10. Nature Of Liquid
a) Specific gravity
b) Viscosity
c) Temperature
d) Corrosive and/or abrasive
properties
e) Nature, percentage and
maximum size of any solid
content
