Gorman-Rupp Pumps 612L20B-B 806819 and up - Manual (Page 20)

60 SERIES OM-01919
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 612L20B-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
ferent due to such factors as viscosity, specific
gravity, elevation, temperature, and impeller trim.
If your pump serial number is followed by an “N”,
your pump is NOT a standard production model.
Contact the Gorman‐Rupp Company to verify per­
formance or part numbers.
Pump speed and operating condition
points must be within the continuous per­
formance range shown on the curve.