Water Hero Number 2 – Vertical Multistage Pump

A vertical multistage pump is a centrifugal pump containing two or more impellers. The impellers may be mounted on the same shaft or on different shafts, but for the majority of 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 then driven & rotated by mechanical means such as an electric motor or engine.

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 cutwater 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.

Multistage pumps are used when higher pressures are required which single stage pumps of the same size are unable to attain.

Vertical multistage centrifugal pump is ideal for applications where space is an issue as its horizontal alternative can take 2-3 times more space. These pumps are specifically designed for high pressure applications where no suction lift is required.

Vertical multistage pumps are offered with energy efficiency motors to give better efficiency and life. All wetted parts are made of corrosion resistant stainless steel which offers hydraulic efficiency and durability. All multistage vertical pumps are fitted with maintenance free cartridge mechanical seal for safe handling, easy service and access.

Applications:

• Pressure boosting systems
• Fire fighting systems
• Industrial washing systems
• Sprinkler irrigation systems
• High pressure pumping application in water treatment plant and boiler plant