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Product code: SNV-B

North Ridge SNV-B Centrifugal Process Vertical Immersion Pump

Pump Type - Vertical Immersion

Max Flow Rate - 800M³H

Max Head - 35M

Max Temp - 95°C

Max Viscosity - 200 cst

Max Solid Passage - 10mm

Self Priming - N

Pump Materials - AISI304, AISI316, AISI316L, Bronze, Cast Iron, Cast Steel, Ductile Iron, Duplex, NiAl Bronze, Super Duplex

Inlet/Outlet Sizes - 32mm to 200mm

Drive - AC Electric, Bareshaft

Max Suction Lift - 0



SNV-B Centrifugal Process Vertical Immersion Pump


Flow Rate

Up to 800m³/hr

Head (Pressure)

Up to 35m

Inlet/Outlet Sizes

DN32 to DN200

Operating Temperature

Up to 95°C

Drive Options

Electric Motor


The SNV-B single stage process centrifugal vertical immersion pump can be used for many applications in the industrial and marine markets. This vertical cantilever pump is designed to transfer clean or slightly contaminated low to medium viscosity fluids without the presence of fibrous or solid particles. Common fluids pumped include fresh water, grey water, sea water and fuels (diesel, petrol and kerosene) and common applications include fuel transfer, chemical, energy plants, mining, fire fighting, irrigation, water supply, water treatment, pressurisation, grey water, dewatering, and marine.


The centrifugal cantilever pump head sits at the end of a column and is submerged in the fluid while the motor is dry and situated outside the fluid.



The single stage process centrifugal vertical immersion pump design has many benefits:


The discharge pipe on this cantilever pump is extended to above the baseplate to ensure easy installation on site.


Capable of high flow rates up to 800m°/hr and pressures up to 9.5 bar.


This sump pump can be supplied with a column length up to 4m for the most challenging of installations.


The motor is situated outside the fluid allowing higher temperature fluids to be pumped without concern of the motor overheating.

No shaft sealing is required on this sump pump, this significantly reduces maintenance costs and eliminates any concerns of seal failure.


The SNV-B single stage process centrifugal vertical immersion pump is also available in an Atex version for handling flammable fluids or being installed in a non-safe area.



Product summary


·         Can handle contaminated low to medium viscosity fluids

·         No shaft sealing required

·         Discharge pipe is extended to above the baseplate for easy installation

·         Column length up to 4m

·         Maximum fluid temperature of 95°C

·         Available in cast iron, cast steel and other materials upon request

·         Suction and discharge flanges conform to EN 1092-2 / PN 16. Flanges according to EN 1092-1 / PN 16 for steel and stainless steel casings. If required, ANSI/ASME flanges can be supplied.

·         Single phase and three phase 50hz / 60hz motors. IP55 as standard.

·         ATEX version upon request

·         Independent certification is available upon request

·         All impellers are balanced according to ISO 1940 class 6.3

·         Long coupled with baseplate

·         Bearings are normally grease lubricated

Read more about Immersion Pumps in our Guide


The column length is dictated by the depth of the sump/chamber, it needs to be long enough to reach the bottom of the tank but leave enough space for the fluid to enter the pump. The length is customisable and bespoke to your installation requirements. The column will be immersed in the fluid, while the motor will sit above the chamber is a dry area.
The main benefit of an immersion pump over a submersible pump is that the motor is situated in a dry area outside of the fluid. This allows the motor to be a much lower IP rating and reduces the risk of area fluid entering the motor and causing damage. The immersion pump itself is also customisable, it is available in a wider range of materials and performances, this makes it far more versatile for use with different fluids. Submersible pumps are also limited by the fluid temperature, the motor requires cooling from the fluid itself to stop overheating, this is typically limited to around 40 to 60°C, column pumps can handle fluids as high as 95°C.
Firstly, always check the compatibility of the materials available against the fluid being pumped. The main materials to check are the pump casing, impeller, o-ring and mechanical seal. It may be that more than one material is suitable for your fluid and selection could be based on the application type. For instance; cast iron, bronze and stainless steel are all suitable for fresh water. If it is a simple transfer application, then the most cost-effective material cast iron will be best. However, if it is a sanitary application, then stainless steel or bronze are better choices.
ATEX is an abbreviation of “Atmospheres Explosibles”. It is a regulation set out by the European Union to ensure the safety of products that are used to handle flammable products or are installed in environments containing flammable gases, vapours, mists or combustible dusts. For instance, if the pump is being installed in an explosive environment, then only the motor needs to meet the Atex standard stopping it from causing a spark during operation and igniting the atmosphere. However, if the fluid being pumped is flammable, then the pump will also need to meet Atex standards to ensure that no sparks are caused inside the pump itself when the fluid goes through it. It is crucial that an Atex rated pump or motor are used for applications involving explosive environments or flammable fluids, using a non-Atex pump or motor in these situations is extremely dangerous and contravenes health and safety standards.
Our immersion pumps can be supplied with level sensors, float switches and control panels to allow a completely automated pumping process.


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