Selection of grundfos pumps online. Grundfos pumps brief description of selection

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All service documentation is now in one place! Instructions, assembly/disassembly videos, list of spare parts and much more.

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Selection of Grundfos pumps online

Drainage pumps Grundfos are designed for pumping clean water, and for dirty and Wastewater with solid particles measuring within 10 mm. They are used in everyday life, in construction, industrial facilities. Depending on the scope of application, it is possible to select Grundfos pumps online based on the customer’s wishes. Our managers are ready to offer you a wide range of services for purchasing a suitable pump model - so, you can receive not only extensive advice, but also carry out an online selection of a Grundfos pump according to parameters that are decisive for your choice.

Grundfos drainage pumps are equipped with a built-in thermal switch and the shut-off chamber is filled with grease. In addition, such pumps do not have a cooling casing, since the engine is constantly washed and cooled by working fluid during operation. Grundfos pumps are also very compact, which is an additional advantage for easy transportation and installation.

Selecting a Grundfos pump online begins with determining the appropriate modification of the installation, based on the maximum possible size of solid particles in the pumped fluid. dirty water. Depending on this indicator, pumps can be intended for:

• pumping water from various reservoirs at industrial facilities;
• pumping out domestic waste water;
• pumping wastewater from settling tanks and treatment facilities in construction.

The selection of a Grundfos pump is carried out taking into account the required operating mode: manual or automatic operating mode.

However, regardless of the model you choose, all Grundfos pumps have the following advantages:

• long term operation;
• strength and resistance to external influences;
• the ability to successfully pump liquid with any inclusions - both solid and fibrous;
• compact sizes.

How to choose a pump for a well based on pressure and flow?

Selecting a pump for a well is not an easy task, since to select a suitable installation it is necessary to take into account whole line factors:

• well depth - measured, as a rule, using a rod;
• average water level in the well;
• height of the water column - the difference between the depth of the well and the water level in it;
• dynamic level (at which water begins to decrease when pumped out of a well);
• diameter of the well rings - to determine the total volume of water;
• water quality – allows you to determine the percentage of impurities and solid particles in the water;
• maximum and average volume of water - to select a pump of appropriate power.

Based on all the criteria that influence the choice of installation for a well, our specialists are ready to offer you the selection of a pump by set and flow rate online, which will allow you to save time and make the search process easier the desired option comfortable and convenient.

To choose the right water pumps for your dacha, you should take seasonality into account. Thus, the choice of pumping equipment for the summer season is much wider than the range of universal pumps. The presence of a hydraulic storage tank in the pump design is also important. It performs the function of protection against water hammer, and is also used as a reserve source of water in emergency situations. Automation of the pump operation is ensured by pressure.

Selecting a heat pump for a boiler: important nuances

Selection heat pump for a boiler is a responsible undertaking, since this device is designed to ensure the process of heating a house or heating water in a boiler. It is most advisable to select a pump according to the boiler power. So, the smaller the diameter heating pipe, the more power the pump must be used.

Speaking about the advantages of heat pumps, it should be noted their efficiency, which is achieved due to a high efficiency coefficient. Thus, consuming 1 kW of electricity, such a device produces four times more heat energy, which is especially nice considering the lack of fuel costs. Other advantages of heat pumps include absolute fire safety and environmental friendliness. An additional argument in their favor is their long service life - up to 30 years, as well as minimal maintenance costs.

Company Grundfos produces a wide range of pumping equipment in several segments:

• Heating, ventilation and air conditioning
• Industrial equipment
• Water supply and sewerage

Glandless rotor pumps, in-line pumps, monoblock and cantilever pumps. Flow up to 2000 m3/h, head up to 140 m.

Multistage pumps of the CR family and installations based on them, cantilever pumps. Flow up to 2000 m3/h, head up to 480 m.

Household and industrial borehole pumps, household pumps and mobile automatic water supply stations, pumps for drainage and sewerage, automatic household and industrial sewerage installations. Flow up to 12600 m3/h, head up to 650 m.
Dosing pumps. Capacity up to 990 l/h, head up to 180 m.

Features of heating system pumps Grundfos

Words " heating circuit» already contain features themselves.
So, if we say “circuit”, we mean a circulation (closed) system.
When we say “heating circuit,” we mean high temperature.
If the system is circulating, what does the pressure consist of? Of course from hydraulic losses.

What is the expense responsible for?

For compensation of heat losses in heated areas, that is, the amount of heat transferred into the room.
If the boiler has a night mode, the pump must be installed on the supply line. If the boiler has a night mode, it lowers the temperature of the coolant. Switching between day and night modes occurs according to the coolant in the supply line of the heating system.
Type of pressure characteristic centrifugal pump obtained by changing the parameters of pressure and flow mutually influencing each other due to a change in the flow area of ​​the pressure pipeline from completely closed (flow is zero and pressure is maximum) to completely open without pressure pipeline (flow is maximum and pressure is zero).

This is how a series of points on the graph are obtained - the pressure characteristic of the pump, exclusively experimentally.
Systems are open(there is a connection between si and therefore it is necessary to take into account the static height parameter)

Closed(there is no connection with the atmosphere and therefore static pressure, in a certain sense, can be neglected).

Open systems are used in water supply systems when water needs to be supplied for distribution. Closed systems used in ventilation and air conditioning where circulation is present.

Most systems use multiple pumps at once. There are two types of pump connections - series (used for very high pressures, for example, with reverse osmosis) and parallel (most often used in systems with redundancy and cascade switching).
When several pumps operate simultaneously, depending on the type of connection, the overall pump characteristic looks like the one shown in the figure above.

It should be noted that they often forget that doubled parameters for flow and pressure are possible only at the extreme points of the characteristics; in fact, in the working areas of the pumps, only an increase in these parameters occurs, but not a doubling. In any case, you need to build a network characteristic and search.

That’s all I wanted to describe in this article; we will describe in detail each pump separately.

We offer:

Significant savings due to the selection of analogues;

Reducing the time spent on selecting Grundfos pumps and other equipment;

Optimization of equipment supply and shipment schedules;

We reduce costs:

Call us and let us know if you want to use this service, or use the ONLINE application form. After a preliminary discussion of the project, send us the necessary documentation - equipment questionnaires, specifications, technical. connection conditions and explanatory note.

After clarifying all the details, we develop our technical and commercial proposal (TCP) and send it to you.

The specification of the TCP compiled by us is absolutely identical to the design one. Any replacement of equipment is justified from a technical and economic point of view. All replacements and configurations are supplemented with comments. We will explain all the details of the selection of new equipment and the proposed modernization of the project.

We carry out a comprehensive audit:

When checking the correct selection and operation of equipment, we will identify:

Errors and inaccuracies in the selection of equipment;

Inappropriate or inappropriate use of equipment and components;

Products and spare parts discontinued;

Possibility to reduce costs for additional purchase of additional components.

We optimize the project:

For optimal selection equipment in accordance with technical requirements project, after an audit we will select the best equipment for each individual facility. We develop project documentation in accordance with current regulatory documents and to the extent necessary for approval. During optimization, modern computer technologies and specialized application software packages are used, which ensure the accuracy of engineering calculations, estimate documentation and the quality of graphic display of project documentation. When selecting, first of all, the price-quality ratio is taken into account, and equipment with minimal delivery times or from a warehouse is selected.

When ordering complex equipment, we provide significant discounts.

In addition to major savings, this guarantees delivery of the project on time or ahead of schedule.

We deliver on time:

When planning the delivery schedule, we make an accurate calculation of the equipment arrival dates. Compliance with deadlines and control is carried out at all stages of delivery.

Warranty service for the supplied equipment is carried out by our Service-center- certified service partner of companies GRUNDFOS, ALFA LAVAL, REFLEX.

We remind you that the service "Audit and optimization of projects" absolutely FREE. For any questions related to this service, please contact us: