KVM Vertical Multistage Pump
Technical Information
Discharge DN 25 … DN100 mm
Q (flow) up to 300 m3/hr
H(head) up to 450 m
Speed 1450--2920 rpm
TEMP. -10 -- +120 C
Body pressure 50 bar
Voltage 220 V, 50 Hz / 380 V , 50 Hz
Description
A vertical multistage pump is originally a centrifugal pump containing two or more impellers. The impellers could be mounted on the same shaft or on different shafts, but for the majority if pumps they are on the same shaft.
The fluid flows into the inlet of the pump casing where it flows into the eye of the impeller. The impeller is driven & rotated by mechanical means such as an electric motor or engine etc.
The rotation of the impeller creates centrifugal force which directs the fluid along the impeller vane and pushes the fluid to the outer tip of the impeller vane where it enters the stage diffuser.
The diffusers are a type of cut water which direct the fluid into the suction eye of the next impeller. This process continues until the fluid has passed through each impeller stage. The fluid is then directed out the pump casing through a final diffuser and into the pump discharge.
Each stage that the fluid passes through increases the discharge pressure.
When you want a higher pressure you need to use a multistage pumps which single stage pumps of same size can not achieve it.