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Technical Resources
N.P.S.H Explained
COMPLETE TECHNICAL NOTES HERE

Net Positive Suction Head
1) N.P.S.H.R -- Required by pump at duty point. Found on the pump performance curve.

2) N.P.S.H.A -- Available in the system and must be determined by calculation.


IMPORTANT!
For the pump to perform properly, the N.P.S.H.R (required), must be less than the N.P.S.H.A. (available)

Standards for pumps, publications, testing
Chemical component chemical and physical characteristics
Industry association of seal manufacturers
Metal, plastic and elastomers chemical resistance to many chemicals
USDOE publication on steam systems

Trade association for the electrical industry

Convert just about anything to anything else

Basic information on pump operation and selection, definitions

Basic information on positive displacement pumps and system consideration

Association of manufacturers of submersible wastewater pumps
Industry Association of Shell and Tube Heat Exchanger Manufacturers
Sophisticated program for vapor and liquid thermodynamic calculations for chemicals