Overview of the Grundfos fecal pump range

For pumping sewage, the use of a surface or submersible fecal pump Grundfos is relevant. Danish units have established themselves in the Russian market as reliable, efficient, affordable. In addition, the installation and maintenance of equipment does not require much effort from the master.

Purpose and scope of Grundfos fecal pumps

Grundfos pumps are actively used in such cases:

• the rise of sewage drains vertically from the lowest point of the collector and their transportation to the horizontal line;
• pumping out fecal masses from a septic tank, cesspool;
• drainage of flooded premises;
• forced pumping of storm water in the drainage system;
• watering, irrigation of the garden area with water from nearby polluted water bodies.

Grundfos pumps are actively used both in everyday life and for industrial purposes.

Principle of operation

Fecal equipment Grundfos has a simple operating principle. It consists in the following:

• Contaminated water enters the pump chamber through the inlet pipe of the unit.
• The cutting mechanism (chopper) turns feces into a homogeneous mass in just a few seconds.
• The effluent is sent through the outlet to the destination.

The powerful steel blades of the cutting mechanism not only handle feces, hair, toilet paper, but even recycle textiles. Therefore, the rags that have got into the sewer do not threaten the pump with anything.

Design features of fecal equipment

All models of Grundfos pumps for pumping sewage, presented in the catalogs of trading companies, are powerful units made of durable materials. Structurally, each pump has:

• durable cast iron body;
• reliable electric motor (single or three-phase);
• chopper wheel made of thick steel;
• rotor and stator;
• oil chamber, which prevents overheating of equipment parts during operation;
• stainless steel bushings that protect the working shaft from premature wear;
• rubber gaskets;
• removable tube for easy connection of hoses or pipes;
• sealed cable.

This design provides a long service life of the pumps without failures or the need for repair.

Model range and technical characteristics

Grundfos equipment is produced in several versions. Each of them differs in size, performance, type of material used. The most popular in the Russian market are the following pump models:

• SE and SEV.
• SEG.
• Sololift2.

They all have their own specifications.

SE and SEV series models

These types of units are centrifugal submersible. Designed to work directly in the pumped medium. All pumps in this model range are equipped with a large working passage unlike surface units. Thanks to this, Grundfos SE and SEV series pumps are able to pump water with impurities, the size of which varies in the range of 50-100 mm.

The pumps have the following operating parameters, according to the instructions:

• cast iron body;
• steel cutting mechanism;
• permissible temperature of the processed medium - +40 degrees;
• working head - 44 m;
• outlet branch pipe - 65-150 mm, depending on the specific model;
• pump power - from 2.8 to 9 kW;
• unit productivity - up to 88 l / h.

Grundfos SE and SEV pumps are especially in demand for summer cottages.

SEG series models

These units are also submersible. The technical characteristics of the equipment make it possible to operate it in conditions of increased water pollution. The pumps are equipped with overheating protection, a special mesh on the inlet pipe, which prevents excessively large inclusions from entering the chamber. Additionally, the SEG series pumps have the function of adjusting the impeller position. The most popular models are 40.12.2.1.502 and 40.15.2.50B.

For 40.15.2.50B, the following operating parameters are characteristic:

• weight - 38 kg;
• power - 1,500 W;
• productivity - 5.25 l / sec .;
• working head (lifting height of drains) - 25.8 m;
• maximum installation depth - 10 m;
• section of the branch pipe - 40 mm;
• cable length - 10 m.

For model 40.12.2.1.502 the following technical characteristics are inherent:

• weight - 38 kg;
• power 1 200 W;
• maximum working depth - 10 m;
• lifting height of effluents (head) - 20.7 m;
• diameter of branch pipes - 40 mm;
• cable length - 10 m.

For pumping wastewater from a cesspool, these pumps are especially good and efficient.

Sololift series models

Surface aggregates are designed for indoor use. Most often they are used if the plumbing room is located below the level of the horizontal line and the central receiver on the site (septic tank, cesspool). The pump lifts the drains up until they fall into the free-flow sewage system and go by gravity.

Sololift pumps are housed in a robust plastic casing, equipped with an alloy steel grinder. The units additionally have a fan valve for muffling sewage odors. They work almost silently - the sound is extinguished by the case, the electric drive in the equipment of this series is not the most powerful.

When choosing a Sololift, you should pay attention to the marking. Its value determines the area of ​​operation of the pump:

• WC - units with a toilet grinder;
• С - compact model designed for processing relatively clean water (washbasin, bidet);
• D - pump for operation on a shower cabin (does not have a chopper).

The numerical values ​​in the marking indicate the number of pump inlet pipes (1-3). That is, you can connect either one plumbing device to the equipment, or three at once.

Technical specifications for different Sololift models, depending on the markings, look different.

Sololift WC-1:

• power - 6 200 W;
• productivity - 148 l / min;
• receiving tank volume - 9 l;
• head - 8.5 m;
• weight - 7.3 kg.

The Sololift CWC-3 is characterized by the following operating parameters:

• power - 6 200 W;
• productivity - 137 l / min;
• tank volume - 9 liters;
• head (lifting height of drains) - 8.5 m;
• weight - 7.1 kg.

The Grundfos Sololift pump is an ideal solution for the device of an autonomous sewage system on difficult terrain.

Installation rules

Installation of a submersible fecal pump Grundfos is performed in the following sequence:

• Hoses of the required diameter are attached to the inlet and outlet nozzles.
• The unit is lowered to the permissible depth indicated in the passport.
• Fill the system with water and start up the equipment.

It is strictly forbidden to turn on the pump on dry running.

The surface pump Sololift is installed on a specially prepared area behind the toilet, sink or shower. As a rule, the device is sold completely ready for use. You just need to connect the inlet and outlet pipes to the plumbing, sewer pipe. Then the system is filled with water and powered from a 220 W network.

Advantages and disadvantages of Grundfos fecal pumps

Grundfos equipment has the following advantages:

• compactness;
• relative noiselessness;
• high performance;
• reliability;
• long service life.

Of the relative disadvantages, the high cost can be noted, but it fully justifies itself by the durability of the pumps.

The price of a Grundfos fecal pump with a grinder changes up or down, depending on its modification. Models of the SEG series cost an average of 35,000 rubles.Sololift pumps have a price of 23,000 rubles. The cost of equipment may also vary slightly depending on the region, but not significantly.