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Product code: DRENOX

Nocchi DRENOX Stainless Steel Submersible Pump

Pump Type - Submersible

Max Flow Rate - 21M³H

Max Head - 11M

Pump Materials - AISI304

Max Temp - 40°C

Max Viscosity - 5 cst

Max Solid Passage - 6mm

Self Priming - N

Inlet/Outlet Sizes - 32mm

Drive - AC Electric

Max Suction Lift - 0



£438.00 (inc VAT) £365.00 (ex VAT)

This product has a delivery lead time of 1-2 Days


DRENOX Stainless Steel Submersible Pumps

Flow Rate

Up to 350 l/min

Head (Pressure)

Up to 11 metres

Sizes Available

1 1/4”

Solids passage

Up to 6mm

Drive Options

Electric Single & Three Phase Motors

Operating Temperature

Up to 40°C



The DRENOX range of submersible pumps are suitable for both domestic and industrial applications, depending on the pump model and size being used, these pumps have a max. solids passage of 6mm, with a max. operating temperature range of 40°C, thanks to their great performance versatility DRENOX pumps are a very popular pump range, commonly used by contractors and pump engineers in general.

DRENOX pumps are manufactured in stainless steel and can be supplied in several different sizes and material configurations to suit almost every domestic or industrial dewatering and drainage application.


Cooled by heat exchange chamber allowing operation without being completely immersed in water

Most pumps can be supplied with or without float - manual or automatic.

7 metres submersion depth

Supplied n both single phase and three phase supply

Suitable for continuous usage due to double mechanical seal lubricated in oil chamber



Design Features/Benefits


        Max. submersion depth of 7 metres

        3mm min. drying/pumping level – (Model 80/7 manual version), 35mm for other models

        Cooled by heat exchange chamber

        IP-68 protection

        Built-in thermal protection

        Dual mechanical seal

        Mechanical seal lubricated in integrated oil chamber

        Available with float switch for automatic operation.

        Solids passage up to 6mm

        Stainless steel construction



Typical Applications/Fluids:

        Drainage / Dewatering


        Light industrial

        Clean water and partially dirty water with max. 6mm solids


No, definitely not! submersible pumps will incur damage even after short periods of dry running. The mechanical seal requires lubrication and cooling while the pump is operating. Without the presence of fluid, the mechanical seal will overheat and crack, and this may cause the pump to leak and fluid to enter the motor. There is also the possibility that the motor will burn out as this requires cooling by the fluid during operation. Our advice is to ensure that the pump and motor are always submerged during operation. There are two main ways to ensure the pump only operates in the event of submersion. Firstly, only the operator turns the pump on and off manually when they have a clear view of the sump. Secondly, fit the pump with a float switch that will automatically turn the pump off once the fluid has dropped to a specific level in the chamber. If you think that dry running is inevitable, then please speak to us and we will try to select a more suitable pump for your application.
Manual and automatic are the two main ways to describe how a submersible pump will operate. Manual means that the operator manually turns the pump on and off when required, turning the pump off and avoiding any possible damage from dry running is solely the liability of the operator. Automatic means that the pump will turn on and off automatically via a float switch or float switches. A float switch is connected to the motor that detects the fluid level in the sump, the pump is turned on when the level is high enough, and the pump is turned off when the fluid drops to an acceptable level.
A clear picture of the pump system is required to make an accurate selection. The main pieces of information required include; a description of the application, bore of pipework, the fluid, flow rate and pressure/head. With these pieces of information, a pump can be sized correctly to ensure it delivers the required flow rate and pressure and that is also operates at its best efficiency point to lower lifetime costs. Knowing if the pump is running intermittently or continuously also allows the correct motor speed to be selected. For instance, a pump running continuously 24/7 will require a 4 pole motor rather than a 2 pole motor. Running the motor slower and oversizing the pump will reduce wear of the motor and the pump, therefore lowering maintenance costs during their lifetime.
Yes, absolutely! In fact, submersible pump motors need to be submerged in fluid during operation for cooling and to avoid overheating. These motors have an IP rating of 68. IP stands for Ingress Protection, this is a measurement of a component's resistance to dust and fluid entering.
Please be aware that the figures displayed relate to the largest pump from this range of products, not specific models. For details on solids passage for specific models, please refer to datasheets or contact a member of our sales team.


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