Submersible pumps Waste water pumps

Hydraulic submersible pumps: Compact power packs for versatile use

Hydraulically driven submersible pumps - A guarantee for performance and reliability

When it comes to finding powerful pumps in a compact form, hydraulically driven submersible pumps are unrivalled. These technological marvels offer exceptional power in relation to their small size, opening up a wide range of applications. From construction sites to mines, from ships to construction vehicles, hydraulic submersible pumps set new standards in terms of performance, flexibility and durability.

Powerful and compact: the features of hydraulic submersible pumps

Hydraulic submersible pumps impress with their unbeatable performance. Despite their compact dimensions, they are capable of pumping impressive quantities of liquid. The pumps are always ready to deliver their full performance under all conditions. This makes them the ultimate choice for situations where performance cannot be compromised. The power that gushes out of a hydraulic submersible pump is simply unrivalled.

Dry running and versatility: a clear advantage

A notable advantage of hydraulic submersible pumps is their ability to run dry for extended periods of time. Unlike electric or internal combustion engine driven pumps, they do not require any additional equipment to survive dry running. In addition, these pumps can be placed in almost any position and still operate efficiently. This versatility opens up a wide range of application scenarios and allows users to utilise the pump exactly where it is needed.

Durability and robust construction

The robustness and durability of hydraulic submersible pumps is remarkable. Thanks to their special design, they are able to withstand heavy loads. Thanks to an intelligent self-lubrication function, the motor remains constantly supplied with oil, which minimises wear on the pump components and thus extends the service life of the pump. These pumps are even protected against blockages caused by sucked-in solids: A drain valve drains excess oil to prevent damage.

Flexible application options and easy maintenance

The versatility of hydraulic submersible pumps is also reflected in their flexibility of use. Whether on construction machinery, ships, mining machines or other hydraulic systems - these pumps can be connected seamlessly. Their ease of care and maintenance are further plus points. Spare parts are readily available and maintenance requirements are minimised, which keeps operating costs low.

Economic reasons speak for themselves

The acquisition costs, long service life and low maintenance requirements make hydraulic submersible pumps an economical investment. Their long-lasting performance and low operating costs make them a reliable companion for demanding projects.

Overall, hydraulic submersible pumps offer an unbeatable combination of compact size, powerful performance and versatility. With their durable construction, easy maintenance and economic benefits, they are the clear choice for professionals looking for top performance in a handy package.

What is a drainage pump

A dirty water pump is a type of pump designed to pump dirty or solids-laden water.

Unlike a normal water pump, a dirty water pump can therefore handle solids such as dirt, sand, small stones and even faeces (depending on the model).

It is mainly used to pump water that contains various types of impurities such as mud, sand, dirt and other foreign bodies that are not normally present in clean or slightly polluted water.

Dirty water pumps are typically designed to be more robust and resilient than clean water pumps, as they need to be able to handle abrasive and solid materials without clogging or damage.

What is a dirty water pump used for?

A dirty water pump is used in various areas to move water that contains debris and solids. Here are some typical applications:

1. wastewater treatment :

In municipal and industrial wastewater systems, it is used to move wastewater from collection points to treatment plants where it is purified.

2. construction:

On construction sites, sewage pumps are used to pump water out of excavations, basements or foundations that has built up due to rain or groundwater accumulation.

3. flooding:

During high water or flooding, sewage pumps help remove water from flooded areas such as basements, residential areas or streets

4. agriculture:

In agriculture, the water pump is used to pump excess dirty water from fields or to drain irrigation canals and ponds.

5. industrial applications:

In various industrial processes where water is mixed with chemicals, solids and other waste products, the dirty water pump is used to handle and transport these liquids.

In addition, waste water pumps can also be used in horticulture, mining and fire brigades.

What types of waste water pumps are there?

There are various types of waste water pumps, which can be differentiated in terms of their design, performance and application. The three main types are

Submersible pumps

Submersible pumps are completely watertight and are placed directly in the water. They are ideal for use in deep water areas such as wells, shafts and floodplains. Their motors are hermetically sealed to prevent water damage.

Waste water pumps with float

Waste water pumps with a float are equipped with a float switch that automatically switches the pump on and off depending on the water level. They are ideal for locations where the water level fluctuates and regular monitoring is not practical.

Sludge pumps

Sludge pumps are specialised waste water pumps designed to move particularly thick and heavy liquids containing a high proportion of solids such as sludge, silt and other sediments. These pumps are built particularly robustly to withstand the abrasive and corrosive properties of the medium to be pumped.

How does a sewage pump work?

The operation of a dirty water pump is similar to that of a normal water pump, but has some special features to deal with the dirt and solids in the water.

A dirty water pump works on the principle of liquid transport by means of a drive mechanism that moves the water together with the solids it contains. Here are the basics of how a dirty water pump works:

Basic components

• Motor: The motor drives the pump. Dirty water pumps usually have an electric motor that is powered by electricity from the domestic power supply. However, it can also be petrol or diesel-powered, depending on the application and the availability of power sources.
• Pump housing: Protects the internal components from water and dirt and channels the dirty water through the pump. It is usually watertight and can often withstand high pressures.
  
• Inlet and outlet: Dirty water enters through the inlet and is pumped out through the outlet. These openings are often equipped with filters or strainers to retain larger solids.

How a waste water pump works

• Suction: The water is sucked into the pump housing by the rotation of an impeller. The impeller is the centrepiece of the pump. It is a rotating disc with blades that moves the liquid by centrifugal force. When the impeller rotates, the rotation creates a vacuum in the inlet area, which draws the dirty water into the pump.
• Transport: The liquid is caught by the rotating movement of the impeller and driven radially outwards towards the edges of the pump housing by centrifugal force. This process accelerates the water and increases the pressure inside the pump. This transports the water from the impeller towards the outlet. In addition to the water, solids are also entrained.
• Discharge: The water is pumped out of the pump through the outlet.
• Filtration: The strainer prevents large solids from entering the pump and damaging it.

Additional functions

• Float switch: Many waste water pumps are equipped with a float switch that automatically detects when the water level is too high and activates or deactivates the pump to prevent flooding or dry running. A float switch automatically switches the pump on and off when the water level fluctuates within a certain range.
• Cutting tool: Some waste water pumps have cutting tools or shredders at the inlet that shred larger solids to prevent blockages and facilitate pump operation.
• Pressure regulator: A pressure regulator regulates the pressure of the water that is pumped out of the pump. This is important to prevent damage to pipework and other equipment.

How to install a drainage pump?

The installation of a drainage pump depends on the type of pump and where it is used. However, below are some general steps you can follow:

Preparation

Site selection: Select a suitable installation site that is accessible and allows for good drainage. Ensure that the area around the pump is stable and firm to minimise vibration and movement during operation.

Review the requirements: Read the manufacturer's instructions carefully to ensure that all specific requirements for installation and operation are considered.

Tools and materials: Make sure you have all the necessary tools and materials ready, such as pipework, couplings, hose clamps, an electrical supply and a concrete base if required.

Installation

Setting up the base: If necessary, pour a concrete base to create a stable and level platform for the pump. This is particularly important in areas with soft ground or with heavy pumps.

Mounting the pump: Place the pump on the base. Ensure that it is firmly seated and correctly aligned.

Connecting the pipework: Connect the inlet and outlet of the pump to the appropriate pipework. Use suitable couplings and seal all connections to prevent leaks.

Electrical installation: Connect the pump to a suitable power source. This should normally be carried out by a qualified electrician to ensure that all electrical connections are made safely and in accordance with local regulations.

Installing the float switch: If your pump is equipped with a float switch, install it according to the manufacturer's instructions. The float switch controls the automatic switching on and off of the pump based on the water level.

Inspection and test run

Leak test: Check all connections for leaks. Make sure there are no leaks.

Test run: Perform a test run of the pump to ensure that it is working properly. Check whether the pump is pumping the water effectively and whether there are any unusual noises or vibrations.

Fine tuning: If necessary, adjust the float switch and check all settings to ensure that the pump is operating under the desired conditions.

Maintenance

Regular maintenance: Carry out regular maintenance as recommended by the manufacturer, including cleaning filters and checking pump components for wear or damage.

By carefully planning and following the installation steps, you can ensure that your drainage pump works efficiently and reliably.

What is the difference between a submersible pump and a waste water pump?

The main difference between a submersible pump and a drainage pump lies in their design and specific application:

Submersible pump

Construction: Submersible pumps are designed so that they can be used completely under water. Their motor is sealed watertight to prevent water from entering and damaging electrical components.

Application: They can be used for clean, slightly contaminated or heavily contaminated water, depending on the specific design of the pump. There are submersible pumps for clear water applications, but also special submersible dirty water pumps for contaminated water.

Application: Common applications include drawing water from wells, draining ponds, pools or flooded basements, as well as industrial applications where water needs to be pumped from a tank or pit.

Pumping clear water and waste water: There are submersible pumps for clear water (e.g. garden pumps, domestic water pumps) and waste water (e.g. construction pit pumps, cellar pumps).

Dirty water pump

Construction: Waste water pumps can be designed as submersible pumps or as non-submersible pumps. The focus is on pumping water containing solids such as sludge, sand, dirt and other impurities. They are robustly built to withstand abrasive wear and corrosion.

Application: Specially designed for pumping heavily contaminated water. These pumps are designed to handle solid particles without clogging or damage.

Application: Used in the construction industry, in municipal sewage systems, in agriculture for irrigated fields and in any situation where water with a high degree of contamination needs to be moved.

Higher delivery capacity: Waste water pumps generally have a higher delivery capacity than clear water pumps.

Summary of submersible pumps and waste water pumps

To summarise: A submersible pump refers to the pump's ability to work underwater, while the term dirty water pump refers to the type of liquid the pump can handle. A dirty water pump can also be a submersible pump if it is designed for underwater use and can pump dirty water.

In short:All dirty water pumps are submersible pumps, but not all submersible pumps are dirty water pumps.Dirty water pumps are suitable for pumping dirty water, while clear water pumps should only be used for clear water .

When selecting the right pump, it is important to consider the type of water to be pumped and the flow rate.