Goulds Pumps 3355 - IOM - Manual (Page 48)

Maintenance
Recommended minimum flows
CAUTION:
The recommended minimum flow is intended for brief periodic operation. It is not to be used as a design
point. Extended operation at the minimum flow can cause pump damage.
Pump Size 60 hertz 50 hertz
3600 rpm 1800 rpm 3000 rpm 1500 rpm
QMIN QBEP full QMIN QBEP full QMIN QBEP full QMIN QBEP full
operation diameter operation(g diameter operation diameter operation diameter
(gpm) (gpm) pm) (gpm) (gpm) (gpm) (gpm) (gpm)
1.5 x 2.5-7A 33 117 11 60 26 98 9 50
1.5 x 2.5-7B 33 176 11 87 26 147 9 70
2.5 x 4- 8A 53 300 26 145 40 247 22 120
2.5 x 4- 8B 70 400 37 210 57 324 30 167
4 x 5- 10A 106 600 53 310 88 500 44 245
4 x 5- 10B 154 925 75 412 128 725 62 360
5 x 6- 11A 374 1100 185 595 308 1015 155 480
5 x 6- 11B 589 1470 286 735 485 1235 238 635
Wearing parts and dimensions
Radial suction
46 Model 3355 Installation, Operation, and Maintenance Manual