Gorman-Rupp Pumps 3D-B 883512 and up - Manual (Page 17)

D SERIES OM−01490
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.
IN GALLONS PER MINUTE AT 60 STROKES PER MINUTE
STATIC
LIFT
IN FEET
STATIC DISCHARGE HEAD IN FEET
5 10 15 20
5 78 67 66 68
10 73 64 66 62
59 64 60 68 15
20 64 59 65 59
56 60 56 56 25
IN LITERS PER MINUTE AT 60 STROKES PER MINUTE
STATIC DISCHARGE HEAD IN METERS STATIC
LIFT
IN METERS 1,5 3,0 4,6 6,1
1,5 295,2 253,6 249,8 257,4
3,0 276,3 242,2 249,8 234,7
4,6 257,4 227,1 242,2 223,3
6,1 242,2 223,3 246,0 223,3
7,6 212,0 212,0 227,1 212,0
STANDARD PERFORMANCE TEST DATA FOR PUMP MODEL 3D-B
Based on 70_ F (21_ C) clear water at sea level
with minimum suction lift, using 3 inch (7,62 cm)
suction hose and 4 inch (10,16 cm) non-collapsible
discharge hose. Since pump installations are sel-
dom identical, your performance may be different
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.
The pump end is designed to operate at
approximately 60 cycles per minute
through a gearbox with a 30.36:1 ratio at a
maximum input speed on 1750 RPM. Make
certain that input speed does not exceed
this RPM. Operation at higher RPM can
cause pump components to be damaged
or destroyed.