Cantilever Pumps Centrifugal Pumps
Last Updated: April 1, 2025
Description
Cantilever pumps are a type of centrifugal pump designed to handle liquids or slurries. They are characterized by their ability to operate without the need for submerged bearings or seals, which makes them particularly suited for handling abrasive or corrosive fluids.
Working Principle
Cantilever pumps operate on the centrifugal force principle, where the rotation of the impeller increases the velocity of the fluid. This increase in velocity is then converted into pressure, allowing the fluid to be moved through the pump. The design of cantilever pumps, with the impeller suspended at the end of a shaft, eliminates the need for submerged bearings, making them ideal for applications involving abrasive materials. This design also reduces the risk of leakage and contamination, enhancing their utility in various industrial settings.
Applications
Cantilever pumps are widely used in applications where liquids or slurries need to be processed. Specific examples include mineral processing plants, where they handle abrasive slurries; steel mills, for cooling and waste management; chemical plants, for transferring corrosive chemicals; and industrial wastewater treatment facilities, where they manage sludge and other waste materials. They are particularly effective in handling abrasive solid media and high-temperature fluids.
Advantages over other Centrifugal Pumps
Cantilever pumps offer significant advantages over other centrifugal pumps, particularly in handling abrasive and corrosive fluids. Their design eliminates the need for submerged bearings, reducing maintenance and the risk of leakage. This makes them more reliable and cost-effective in environments where other pumps might fail due to wear and tear from abrasive materials.
Limitations
One of the primary limitations of cantilever pumps is their suitability for shallow fluid depths, typically less than 8 to 10 feet. As the depth increases, the cost of the pump rises exponentially due to the need for larger shaft diameters to support the impeller. This makes them less cost-effective for deeper applications, where submersible pumps might be a better choice.
Considerations
When selecting cantilever pumps, several factors should be considered, including initial costs, operating expenses, and maintenance requirements. The initial cost can be high, especially for applications requiring larger shaft diameters. Operating expenses may be lower due to reduced maintenance needs, as the design minimizes wear and tear. However, durability can be a concern in highly abrasive environments, potentially leading to higher replacement costs. It's also important to consider the accuracy of the pump in maintaining consistent flow rates, which can impact overall system efficiency.
from Savino Barbera Srl
Single-stage vertical centrifugal pumps with closed impeller, cantilever shaft and bushings lubricated by the liquid being pumped. Practical and handy, they allow discontinuous service and are ideal for transfering non-abrasive and non-viscous chemical products contained in drums and barrels. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Drum Pump
- Pump Housing Material: Plastic; Stainless Steel
- Liquid Flow: 13.20 to 18.48
- Media: Liquids
from Fybroc Division, Met-Pro Corporation
Fiberglass reinforced design, high strength casting, motor frame options [See More]
- Pump Type: Cantelever Pump; Chemical Pump
- Discharge Size: 2.000
- Liquid Flow: 70.00
- Pump Housing Material: Plastic; Vinyl Ester Resin
from Pentair Engineered Solutions
Key Features. Vertical Extended Single Shaft Centrifugal Pumps. Transfers Liquid from Below Ground Reservoirs or Enclosed Tanks. Applications Include: Sump Drainage in Building Basements, Tunnels, Pits. Handling Wash Water. Boiler Pit Service. Condensate Service. Light Duty Sump Service. Dirty... [See More]
- Pump Type: Cantelever Pump; Condensate Pump; Sewage Pump; Sump Pump; Water Pump; Waste Water Pump; Wastewater Treatment Pump
- Discharge Pressure: 17.3
- Liquid Flow: 110.00
- Media Temperature: 180
from Crane Pumps & Systems
Deming Vertical Process pumps are space saving, always primed, with cantilever shaft, no submerged bearings, and broad capacity range. Applications. Coolants. Metal and Parts Washing. Filtering. Air Conditioning. Pickling. Circulation. Paint Systems Plating. Air Washers. Pollution Control. Features:... [See More]
- Pump Type: Cantelever Pump
- Discharge Size: 1.000 to 3.000
- Liquid Flow: 500.00
- HP: 0.25 to 7.50
from Price Pump Company
Optional seal face materials and elastomers available [See More]
- Pump Type: Cantelever Pump; Circulation Pump; Chemical Pump; Fire Service Pump (optional feature); Water Pump; Waste Water Pump; Water Supply Pump; Water Treatment Pump
- Discharge Pressure: 40.0
- Liquid Flow: 88.00
- Discharge Size: 1.000
from Affetti Giuseppe & C. s.n.c
The vertical centrifugal close coupled range CMV-S, has been designed in order to obtain the best performances with a reduced cost. Easy to handle, the pumps of this range are strong, compact construction, produced in their components with high thickness to give a product with the maximum... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- Discharge Size: 1.000 to 2.000
- Liquid Flow: 22.01 to 1320.86
- HP: 0.74 to 100.52
from Sulzer Ltd.
Sulzer manufactures vertical pumps for applications ranging from waste water sump duties to highly specialized offshore fire fighting applications. Vertical mixed flow pumps are typically used wherever a liquid needs to be pumped upward at moderate pressure from open bodies of liquid such as oceans,... [See More]
- Pump Type: Cantelever Pump; Fire Service Pump; Sump Pump; Water Pump; Waste Water Pump
- Discharge Pressure: 16.1 to 19606.6
- Liquid Flow: 40.00 to 200000.00
- Media Temperature: -260 to 400
from Savino Barbera Srl
Single-stage vertical centrifugal pumps with twin impeller, cantilever shaft and bushings lubricated by the liquid being pumped. Practical and handy, they allow discontinuous service and are ideal for transfering non-abrasive and non-viscous chemical products contained in drums and barrels. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Drum Pump
- Pump Housing Material: Plastic; Stainless Steel
- Liquid Flow: 13.20 to 15.84
- Media: Liquids
from Pentair Engineered Solutions
Key Features. Vertical Extended Single Shaft Centrifugal Pumps. Transfers Liquid from Below Ground Reservoirs or Enclosed Tanks. Bronze-fitted Construction Standard; Iron, All Bronze or Stainless Steel Optional. Applications Include: Sump Drainage in Building Basements, Tunnels, Pits. Handling Wash... [See More]
- Pump Type: Cantelever Pump; Condensate Pump; Sump Pump; Water Pump; Waste Water Pump; Wastewater Treatment Pump
- Discharge Pressure: 78.0
- Liquid Flow: 1200.00
- Media Temperature: 180
from Price Pump Company
Compact close coupled design using standard NEMA "C" OR "TC" motors. Back pull-out design for easy maintenance. Optional O-ring design available. 316SS - John Crane Type 21 Viton ®, Carbon vs. Ceramic, standard seal. John Crane Type 9 Teflon ® seal available. Optional seal face materials... [See More]
- Pump Type: Cantelever Pump; Circulation Pump; Chemical Pump; Fire Service Pump (optional feature); Water Pump; Water Supply Pump; Water Treatment Pump
- Discharge Pressure: 65.0
- Liquid Flow: 300.00
- Discharge Size: 1.500
from Affetti Giuseppe & C. s.n.c
The CGV-S range of cantilever pumps was designed to meet a demand for vertical pumps that could operate without any risk of damage to the shaft guide bushings from abrasive solid particles contained in the fluid or from dry running, such that the design does not foresee any guide mechanisms close to... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- HP: 1.47 to 100.52
- Discharge Size: 1.250 to 2.000
- Media Temperature: -22 to 212
from Savino Barbera Srl
Vertical centrifugal pumps constructed from PP, PVDF, AISI. 316 steel and with internal parts in polypropylene, PVDF, Ryton. Practical and handy, they allow discontinuous service and they are ideal for transfering non-abrasive and non-viscous chemical products contained in drums and barrels. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Drum Pump
- Pump Housing Material: Plastic; Stainless Steel
- Liquid Flow: 21.12
- Media: Liquids
from Pentair Engineered Solutions
Key Features. Reliable, Heavy Duty Vertical Wet Pit Solids-Handling Pumps. Liquid End Includes Impeller that can Pass up to a 3-inch Sphere. Motor Mounting Bracket Assures Alignment of Motor and Pump Shaft with Tongue and Groove Machine. External Impeller Adjustment Accomplished with Hexagon-shaped... [See More]
- Pump Type: Cantelever Pump; Sewage Pump; Sump Pump; Waste Water Pump; Wastewater Treatment Pump
- Discharge Pressure: 39.0
- Liquid Flow: 350.00
- Discharge Size: 2.000 to 4.000
from Affetti Giuseppe & C. s.n.c
The vertical centrifugal close coupled range CLV, has been designed in order to obtain the best performances with a reduced cost. Easy to handle, the pumps of this range are strong, compact construction, produced in their components with high thickness to give a product with the maximum reliability. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- Discharge Size: 1.000 to 2.000
- Liquid Flow: 22.01 to 1320.86
- HP: 0.74 to 100.52
from Savino Barbera Srl
Vertical centrifugal pumps constructed from PP, PVDF, AISI. 316 steel and with internal parts in polypropylene, PVDF, Ryton. Practical and handy, they allow discontinuous service and they are ideal for transfering non-abrasive and non-viscous chemical products contained in drums and barrels. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Drum Pump
- Pump Housing Material: Plastic; Stainless Steel
- Liquid Flow: 21.12
- Media: Liquids
from Pentair Engineered Solutions
Key Features. Reliable, Heavy Duty Vertical Wet Pit Solids-Handling Pumps. Liquid End Includes Impeller that can Pass a 3-inch Sphere. Motor Mounting Bracket Assures Alignment of Motor and Pump Shaft with Tongue and Groove Machine. External Impeller Adjustment Accomplished with Hexagon-shaped... [See More]
- Pump Type: Cantelever Pump; Sewage Pump; Sump Pump; Waste Water Pump; Wastewater Treatment Pump
- Discharge Pressure: 34.7
- Liquid Flow: 1000.00
- Discharge Size: 4.000 to 6.000
from Affetti Giuseppe & C. s.n.c
The vertical centrifugal close coupled range CMV, has been designed in order to obtain the best performances with a reduced cost. Easy to handle, the pumps of this range are strong, compact construction, produced in their components with high thickness to give a product with the maximum reliability. [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- Discharge Size: 1.000 to 2.000
- Liquid Flow: 22.01 to 1320.86
- HP: 0.74 to 100.52
from Savino Barbera Srl
Single-stage vertical centrifugal pumps, suitable for transfer, recycling and distributing corrosive liquids. The AS-series pumps are recommended for installation in cisterns, tanks or wells with variable head. The manufacturing technologies, the materials employed and the hydraulic design adopted... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump
- HP: 5.36 to 14.74
- Liquid Flow: 92.46 to 387.45
- Pump Housing Material: Plastic
from Pentair Engineered Solutions
Key Features. Reliable, Heavy Duty Vertical Wet Pit Solids Handling Pumps. Liquid End Includes Impeller that can Pass up to a 3-inch Sphere. Motor Mounting Bracket Assures Alignment of Motor and Pump Shaft with Tongue and Groove Machine. External Impeller Adjustment Accomplished with Hexagon-shaped... [See More]
- Pump Type: Cantelever Pump; Sewage Pump; Sump Pump; Waste Water Pump; Wastewater Treatment Pump
- Discharge Pressure: 39.0
- Liquid Flow: 350.00
- Discharge Size: 2.000 to 4.000
from Affetti Giuseppe & C. s.n.c
The vertical centrifugal with coupling range CGV, has been designed in order to obtain the best performances and a total reliability. Easy to handle, the pumps of this range are strong, compact construction, produced in their components with high thickness to give a product with the maximum... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- Discharge Size: 1.250 to 2.000
- Liquid Flow: 22.01 to 528.34
- HP: 0.74 to 24.79
from Savino Barbera Srl
Designed for the recycling, treatment, and filtration of corrosive liquids (including those with solids) having the tendency to foul, kept in constant level tanks. The BS series centrifugal vertical pumps are constructed at standard lengths, without intermediate bearings, without guide bushings or... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump
- HP: 0.34
- Liquid Flow: 2.20 to 19.37
- Pump Housing Material: Plastic
from Affetti Giuseppe & C. s.n.c
The vertical centrifugal with coupling range CGV-N, has been designed in order to obtain the best performances and a total reliability. Easy to handle, the pumps of this range are strong, compact construction, produced in their components with high thickness to give a product with the maximum... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump; Water Pump; Waste Water Pump; Water Treatment Pump; Wastewater Treatment Pump
- HP: 1.47 to 100.52
- Discharge Size: 1.250 to 2.000
- Media Temperature: -22 to 212
from Savino Barbera Srl
Savino Barbera's production line has been enriched with a new series of vertical-shaft centrifugal pumps, built with corrosion-resistant thermoplastic materials. These are the GP series pumps with a vertical shaft and with volute pump casing, characterized by high performance (flow rate, head, and... [See More]
- Pump Type: Cantelever Pump; Chemical Pump; Sump Pump
- HP: 20.10
- Liquid Flow: 462.30
- Pump Housing Material: Plastic