Details

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The SIHI^multi pumps are horizontal multistage centrifugal pumps of ring-section design, which meet the technical requirements of ISO 5199 / EN 25199.

Benefits: SIHI^multi

• Advanced modular design reduces the number of parts while maximizing interchangeability. 

• Optimal selection of impeller diameter and diffuser size installed in a standardized casing ensures that the pump matches the required duty for each application. 

• The first stage of each pump size is equipped with a low required NPSH suction impeller. 

• Axial thrust is hydraulically balanced by a patented balanced drum system with self-adjusting throttle device. 

• Generously sized angular contact ball bearings absorb residual thrust. 

• The pump can be built with an axial, vertical, left or right suction and a vertical, left or right discharge in any combination. 

• All pump sizes can be provided with one or more "dummy" stages, if required.

Features: SIHI^multi

• The pump is driven from the discharge side and the rotor is supported on the side by grease-lubricated anti-friction bearings and on the suction side by self-adjusting sleeve bearing lubricated by the pumped liquid. 

• The pump feet are mounted to the suction and discharge casings in such a manner that the suction casing (for suction casings with radial branch) and discharge casing can be swung to suit the installation conditions. 

• Casing components are sealed by O-rings and held together with tie rods. 

• The balancing line is returned to the suction casing or to the upstream vessel. 

• The mechanical shaft seal is located on the drive side only. Sealing can be (cooled or uncooled) single acting mechanical seal, packed gland (cooled or uncooled) or double-acting mechanical seal (uncooled).

Technical Data:

Flow rate	max. 1100 GPM (250 m³/h)
Head	max. 2067 feet (630 m)
Speed	max. 3600 rpm
Temperature	14 to 356 F (-10 to +180°C)
Pressure Rating	max. 914 psi (63 bar)
Shaft seal	mechanical seal  packed gland

Industries:

• Power
• Water & Wastewater Treatment Plants
• Irrigation
• Chemical & Process
• Pharmaceutical
• Food
• And many More

Applications:

• Boiler feed
• Condensate systems
• Pressure boosting
• Irrigation
• High pressure cleaning
• Heating
• Waterworks, and water supply
• Reverse osmosis
• Chemical and Process
• And many more ...
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