Gorman-Rupp Pumps 81 1/2E3-B 341115 and up - Manual (Page 19)

OM−0766 80 SERIES
MAINTENANCE & REPAIR PAGE E − 1
PUMP MAINTENANCE AND REPAIR − SECTION E
MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK
OPERATING PERFORMANCE.
STANDARD PERFORMANCE FOR PUMP MODEL 81 1/2E3−B
Based on 70_ F (21 _ C) clear water at sea level
with minimum suction lift. Since pump installations
are seldom identical, your performance may be dif-
ference due to such factors as viscosity, specific
gravity, elevation, temperature, and impeller trim.
Pump speed and operating condition
points must be within the continuous per-
formance range shown on the curve.