EBARA EVMS 1 Operating And Maintenance Manual page 21

D
Model
mm
EVMS1
EVMS3
EVMS5
12
EVMS10
EVMS15
EVMS20
EVMS32
EVMS45
14
EVMS64
EVMS90
15.6 WARNINGS FOR CORRECT OPERATION OF EVMS MOTOR-DRIVEN
PUMPS (FIG. 1 - FIG. 2)
FIG.1
A Good immersion
Positive slope
B
Wide-radius bend
C
Pipework with independent supports
D
E Suction pipe diameter ≥ pump port diameter
Reducing coupling for eccentric pipes
F
A B
mm mm
100 180
130 215
170 240
190 266
FIG.2
Insufficient immersion
A
Negative slope, air pockets created
B
C Tight bend, pressure loss
Pipe diameter < pump port diameter, pressure loss
D
EN
21