For the hydraulic suction, delivery and bypass connections, refer to Fig. 2, which represents a generic diagram of a
possible pump installation.
CAUTION
• The main plant errors to be avoided are indicated in bold type.
DIAMETER
REDUCTION
20
HYDRAULIC CONNECTION
90° CURVES
"T" CONNECTIONS
OVERTURNED "U" CURVES
NEGATIVE HEAD
tank
tank wall
tank
lter 1
booster
pressure gauge
safety valve
pump head
lter
BYPASS RECIRCULATION DURING SUCTION
NO
pressure gauge
safety valve
pump head
lter 2
ushing circuit
bypass line
YES
valve
accumulator
BY-PASS
accumulator
OUT
valve
OUT
BY-PASS
Fig. 2