Grundfos pumping stations: overview of the model range and its features. For those who value ideal quality: the use of Grundfos pumping stations Grundfos booster pumping station
Ask any German to translate the phrase: “Unsurpassed quality, high reliability and super popularity.
Everyone will answer you without hesitation: Grundfos. True, judging by the reviews on the network, many Russian users would answer this way. For those who hear about this trademark for the first time, we recommend reading our article.
The reason is reliable, trouble-free operation, complete equipment and the highest performance.
Each model is a set of solutions that completely exclude user participation in the process of supplying water to the house and site.
Operating principle^
To pump water into the water supply network, Grundfos uses a self-priming surface-type pump with a built-in ejector.
The engine is started and stopped by a signal from a pressure switch, in which the on and off thresholds are adjusted by the user at his discretion.
To prevent frequent starts of the pump motor in case of short-term use of the water supply, the system is equipped with an elastic membrane hydraulic accumulator, the volume of which is selected according to the station’s productivity.
If Grundfos seems a little expensive to you, pay attention to AquaRobot pumping stations, we wrote an article with reviews, technical characteristics, prices, read it only in our online magazine.
How to choose a pumping station? ^
Grundfos NS should be selected based on the required pressure and performance.
Their maximum values are given in the data sheet, but they only help to get a general impression of the power of the equipment.
Much more valuable with practical point In view, there are tables or graphs showing what performance the pump will have at a given pressure.
The required performance is calculated approximately, taking into account the following data: water consumption when using a tap (for a pressure in the pipeline of 2 atm) is 3-4 l/min, for a shower cabin - 10-12 l/min.
The required pressure is measured in meters of water column, it is calculated by summing three components:
- required pressure in the pipeline (approximately 2 atm or 20 m.v.st);
- maximum height of water fittings relative to the pump;
- hydraulic resistance of the pipeline.
To select a station, the last value can be calculated approximately: Every 10 m of pipeline is equivalent to one meter of pressure.
This, by the way, should be taken into account when determining the suction depth.
If the surface water in the well is 5 m below the ground level, A the distance from the well to the pump is 20 m(this often happens when installing a pump in a house), then The maximum suction depth for the station must be at least 7 m (5 + 20/10).
When purchasing a station, check its completeness.
Grundfos pumping stations are equipped with everything necessary, but unscrupulous sellers can sometimes remove a filter or check valve to sell them separately.
In this case, the buyer is told that these elements are not included in the NS kit. Many people believe this, because this is often the case with NS from other manufacturers.
Important: Grundfos pumping stations are very demanding on the quality of power supply. Our power grids, as we know, are not yet of European quality, so it makes sense Along with the station, purchase a voltage stabilizer.
Best selling models^
Below we have given a mini-rating of the most popular pumping stations from Grundfos, their cost and main technical characteristics. Purchasing one of these stations, in our opinion, would be a very reasonable expenditure of money, given the reliability of these devices.
Grundfos JP Basic 3/24 ($350) ^
This high-performance pumping station is capable of providing water to a large country house with all the amenities and a developed irrigation system.
Maximum productivity – from 3 to 5 cubic meters. m/h, maximum pressure – 48 m. Providing such high performance, the economical JP pump consumes only 0.85 kW of electricity.
The permissible depth of the water surface in the source is up to 9 m. At the same time, the efficiency of the pump does not decrease even when the water flow at the suction contains a large volume of air.
The station is equipped with a membrane hydraulic accumulator with a volume of 24 liters. The pump can be used to increase pressure in centralized water supply networks.
The station operates with a reduced noise level, which is ensured by high quality assembly, the use of cast iron as the pump housing material, and water cooling.
Grundfos JP Basic 3/50 ($400) ^
This model differs from the previous one in a more capacious membrane accumulator, the volume of which is 50 liters.
Increasing the storage capacity helps reduce the number of start-stop cycles of the pump motor, thereby significantly increasing its service life.
Grundfos MQ 3-35 ($520)^
In this model, the pump, electric motor, diaphragm accumulator, flow and pressure sensors, as well as a check valve and control unit are assembled into a single structure.
The station is compact in size and does not require any free space around it after installation.
A self-priming surface pump is capable of lifting water from depths of up to 8 m and developing a maximum pressure of up to 35 m. The maximum volume of water pumped per hour is from 3 to 5 cubic meters. m.
A handshake function is provided. It consists in the fact that after an emergency shutdown the pump automatically tries to resume operation at intervals of 30 minutes.
After 24 hours, the handshake function is disabled and the pump can only be started manually.
Limit operating pressure is 7.5 atm.
The station can be operated at outside temperature up to +45C. Thus, its rather high price, in our opinion, is completely justified.
Grundfos Hydrojet JP 5/24 ($550) ^
The small pump of this station with a power of only 0.75 kW deserves great respect. It is capable of developing a head of up to 40 m or providing maximum productivity of 3.5 cubic meters. m/h.
The greatest suction depth is 8 m. A 24-liter storage tank will help ensure optimal pump operation.
The model can work in regions with hot climates, permissible temperature outside air is +40C.
Working pressure – up to 6 atm.
Grundfos Hydrojet JP 6/50 ($1200) ^
High capacity model with a maximum capacity of 4.5 cu.m. m/h. Maximum head – 48 m.
Power consumption – 1.4 kW. Suction depth (maximum) – 8 m. Membrane storage capacity – 50 l.
The pump is controlled by a pressure switch with built-in dry-running protection.
Also, Italian may be a good alternative to Grundfos; they are no less reliable and are often more affordable.
If you are looking for a pumping station for country house, read first, we have selected the most important information on this topic.
Users' opinions ^
Alexey T., St. Petersburg
I have a Grundfos MQ 3-45 station at my dacha. I’ll immediately note the advantages: the pump operates very quietly, startup occurs smoothly, without large starting currents. 100% trouble-free equipment. I can only mention one drawback: after five years of operation, the plastic on the power button burst. It had to be used too often in order to forcibly turn off the pump during periods of voltage surges and sags. By the way, I recommend that all potential buyers take into account that such fluctuations in the power supply network have a very bad effect on the life of the pump, so if your power network is unreliable, look for a more durable model or connect Grundfos through a stabilizer.
The station operates all year round. For greater convenience, I installed an additional 100 liter tank. The pump turns on when the pressure drops to 2 bar and turns off as soon as it rises to 4 bar. The performance is enough for several water points, as well as for ensuring the operation of the washing machine. Even with maximum flow there is always enough water. In general, I advise everyone to buy such a thing, despite the high cost. I was convinced from my own experience that it is completely justified.
Alexander P. Volgograd
Four years ago I installed a Grundfos automatic pumping station for water supply country house. Works all year round, in summer it is especially intense due to irrigation. I decided to buy it after a long study of forums on the Internet; judging by the reviews, this is the best option for a pumping station. I was never disappointed in my choice. Sometimes you have to read user complaints, saying that it often breaks down. Most likely, this is due to poor quality of power supply; due to the presence of an electronic controller, Grundfos pumping stations are very sensitive to voltage changes. I immediately connected mine through a stabilizer and I can say with full responsibility: the equipment works like a clock.
The station pumps water from a well. The operation of the pump is controlled by pressure and water flow sensors. If the water in the well falls below the intake pipe, the station automatically turns off.
I especially like the fact that it maintains a constant pressure at any flow rate, and not like in conventional stations: first the pressure in the tap decreases until it is empty membrane accumulator, and then, when the pump starts, it increases. With Grundfos everything is different, water flows like from a tap in a city apartment.
I would also like to note the low noise level and absolutely complete set, I didn’t have to buy anything extra at all.
I can’t point out any shortcomings, except that the price is a little steep.
Victor M., Kaluga
First, I installed the Marina automatic pumping station. It’s quite good, but when you turn on the pump it makes too much noise, and the floors just shake, it seems like the house is about to fall apart. I sold it to a friend and bought Grundfos JP in return. Can't hear it at all! I installed it in the basement, and I don’t feel any discomfort while the unit is running. The pump is very efficient, confidently draws water, despite the great depth of the well and the significant distance to it. Without any problems I can take a shower while the washing machine is running.
What is a check valve for a pumping station - how to choose, how much it costs
Reading time: 7 minutes.
Grundfos equipment, due to its reliability, performance and ease of operation, is widely used in all industries.
They are used in the housing and public utilities sector in the construction of centralized heating, water supply, sewage drainage, servicing agricultural and forestry enterprises, as well as in equipping industrial complexes.
Main types of problems
Timely maintenance of a pump or pumping station for any purpose is the key to its correct operation and the durability of the system as a whole. Repair of pumps in the profile service center, for example, in Sergiev Posad, initially an expensive pleasure. However, if you are familiar with the structure of the unit and understand the principles of its operation, it is quite possible to eliminate malfunctions on your own.
Design and principle of operation
The lineup Grundfos is represented in all major categories of pumping equipment:
- borehole;
- sewer;
- centrifugal;
- circulation;
- multi-stage self-priming units.
Borehole pumps are used in the water supply system and in the construction of wells with artesian water, for filling tanks and other water distribution systems. As a rule, these are deep installations operating in continuous or short-term mode, regulated by a hydraulic tank. The product package includes three main elements - a motor, a built-in filter and an upper or lower water intake system. The products are represented by the SP, SQ and SQE equipment series.
Let's look at the design of Sololift sewer pumps, using the example of a typical Sololift 2 WC 3 unit. The installation consists of a tank equipped with inlet/outlet holes, into which waste water. After preliminary cleaning provided by the filtration system, and upon reaching a certain level, which is monitored by the Grundfos level sensor, the pump turns on automatically. This starts the process of pumping the liquid into a centralized pipeline, septic tank or other disposal tank. The installation is also equipped with a shredder that processes large household waste and prevents clogging sewer pipes. The most easy installation capable of raising water to a height of 5-7 m and transporting it 100 m in a horizontal plane.
NB series monoblock centrifugal pumps are distinguished by one-way system suction and are used in water supply, heating, ventilation, air conditioning systems and as part of irrigation installations. Torque from the engine is transmitted to the rotor impeller, and liquid enters the central part of the unit. As the blades rotate, water or other carrier of thermal energy, if we are talking about a heating system, is thrown towards external elements housing and is redirected to the outlet pipe under the influence of centrifugal force. The pressure inside the system is regulated by a Grundfos level sensor.
Circulation pumps, represented by the UP, UPS, UPSD, Alpha 2 series of equipment, are equipped with a wet rotor and are intended primarily for completing heating system with a closed loop. Its operation is based on centrifugal force generated by an impeller placed on the shaft. When water enters the central part of the rotating wheel from the suction pipe, it is thrown into the peripheral sections of the unit. The advantage of this series of equipment is the automatic cooling of the rotor, which rotates directly in the pumped medium. It is still recommended to entrust the installation of a circular heating pump with a wet rotor to professionals.
The leader in the segment of self-priming equipment is Grundfos MQ 3-35, used as a complete set of a pumping station with a membrane expansion tank. Water circulation is stimulated by an increase in pressure due to the centrifugal force generated when the impeller rotates. When it is forced out of the peripheral compartments of the installation into pressure pipeline, the pressure in the central part of the impeller decreases and the liquid enters the pump housing. Such models are used to increase pressure and as part of supply systems clean water(drinking or technical).
Common types of faults
Pump failure, as a rule, occurs suddenly and is caused mainly by incorrect operation, which also needs to be given a little attention. It is advisable to entrust the installation of Sololifts, for example, and similar high-performance equipment and the first switching on, to specialists.
Before connecting the submersible or surface pump to the electrical network or to the hydraulic accumulator, it is necessary to check whether there is liquid in the area where the intake device is located and in all pipelines of the system - during a “dry” start, the pumping station is almost 100% guaranteed to fail. The volume and temperature of pumping water must comply with the operating characteristics and manufacturer's recommendations.
When the pump is idle for a long time, for example, when used in a country house or in a non-residential country house, once a month it must be turned on for 15-30 minutes to prevent oxidation of moving parts.
Despite the differences in design and operating principle, most types of pumps are characterized by following types problems:
- lack of torque;
- premature spontaneous stoppage of work;
- increased noise level;
- increased vibration;
- insufficient pressure;
- stop after start.
Causes of problems
The absence of torque while the installation is humming indicates oxidation of the shaft as a result of long-term equipment downtime or contamination of the system with foreign insoluble or coarse elements in the composition of the pumped liquid. In both cases, cleaning can eliminate the malfunction; less often, measuring the rotor shaft or the entire engine is required. If the pump does not rotate or make noise when turned on, you need to check the power supply and voltage parameters.
When the pump randomly turns off a short time after starting, the problem is most likely caused by excessive deposits of lime and salt in the space between the rotor and the starter. The problem can also be solved by cleaning, which requires first turning off the system and dismantling the engine.
A high noise level when turned on indicates the presence of excess air in the pipelines, which can only be released while simultaneously increasing the inlet pressure. Sololift repair is not required in this case.
The increased level of vibration is due to the fact that the bearing with which the pump is equipped in some models has become unusable and requires replacement.
Pressure defects occur if the viscosity of the pumped liquid is higher bandwidth pumping station, which can be eliminated by replacing the clogged filter. Another reason is an incorrect three-phase connection. This often causes equipment to stop almost immediately after it has started.
The causes of breakdowns also include uncontrolled external factors– freezing of liquid in pipelines in case of insufficient insulation or abnormal climatic phenomena and water hammer during a “dry” start.
Stages and rules of repair
You can repair the Sololift pump, like Grundfos for any purpose, yourself, after first identifying the source of the problem.
Equipment diagnostics involves several stages:
- start the pumping station, assess the noise and vibration levels;
- check the pressure indicators;
- make sure that the motor does not overheat during operation;
- check the presence and quality of lubrication of node connections;
- make sure the integrity of the structure and the absence of leaks;
- inspect the box for secure fixation of the terminals.
If you are sure that the malfunctions are not caused by lime deposits and contamination, overloads or operation at maximum power, the pump can be disassembled. When planning a Grundfos pump with your own hands, make sure that the water is drained from the pipelines and turn off the system. Disassembly begins with the junction box and visual assessment of components. As a rule, such an inspection makes it possible to immediately detect a burnt out or worn out part. If not, we will continue to disassemble the installation.
The engine must be in a vertical position during disassembly.. This will prevent the risk of oil leakage. To diagnose the starting mechanism, you must connect an ohmmeter to the engine. This instrument, when rotating the handle, generates a voltage in the range of 200-300 V, sufficient to take readings on a resistance meter. Diagnostic data that is too high, reaching infinity, indicates a break in the working phase, too low - an interturn short circuit. Self-adjustment operating parameters with such deviations is impossible.
Grundfos circulation pump: repair review (video)
Grundfos pumping stations for water supply
Pumping stations for private houses are devices for providing water supply in a country house or in a private house. Allows you to organize water supply in suburban housing similar to that, which we are all used to seeing in city apartments. They are capable of drawing water from a depth of up to 10 meters and supplying it up to 60 meters in height with a productivity of up to 8 cubic meters per hour. Externally, the design of the stations looks quite simple: they usually consist of a pump, a water tank and a pressure gauge to control the pressure in the system.
Automatic self-priming pumping units Grundfos CMB-SP SET
CMB-SP SET units provide water supply from boreholes, rainwater collection points and wells. Besides, this installation can be used to increase pressure in pipelines of private houses, summer houses, cottages, farms, and vegetable gardens.
Explanation of symbols:
Why Grundfos installation CMB-SP SET:
Possibility of automatic water intake from a depth of up to eight meters in less than 5 minutes!
Operation below 55 dB;
Parts in constant contact with water are made of of stainless steel.
The unit is completely ready for installation;
Prevention of dry running and cycling;
Flow/pressure characteristics
Grundfos CMB-SP SET equipment:
1. CM pump:
2. Automatic PM 1 or PM 2;
3. Cable with plug
When choosing an installation with PM 2 automation, you receive the following advantages:
Possibility of selecting pressure Pstart (from 1.5 to 5 bar);
Pstop function, which turns off the pump at a pressure of 1 bar + Pstart;
Automatic error reset function;
Option to prevent prolonged pump operation.
In the store website you can choose the Grundfos CMB-SP SET installation complete with automation:
PM 1 – 15 (automatic switching on at a pressure of 1.5 bar);
PM 1 - 22 (Automatic switching on at 2.2 bar pressure);
PM 2 – adjustable switching pressure.
Country of origin: Hungary.
Factory warranty: 2 years.
Pressure booster unit Grundfos CMB
The CMB partially performs the functions of the Grundfos CMB-SP SET, as it is designed to increase pressure in water pipes country houses, cottages, farms, vegetable gardens.
Equipment:
Pump CM;
Pressure tank with membrane (24 l or 60 l);
Pressure switch;
Pressure gauge;
Cable with plug;
Explanation of symbols for selecting a pumping unit
Advantages of installing Grundfos CMB:
All parts of the CM pump that are in direct contact with the pumped liquid are made of cast iron and stainless steel.
The Grundfos CMB unit is ready to start immediately after installation and connection to the mains.
Low noise level (up to 55 dB)
Pressure/flow characteristics:
Country of origin: Hungary.
Factory warranty: 2 years.
Automatic pressure booster unit Grundfos CMBE
AUPD Grundfos CMBE is also necessary to increase pressure in water supply systems in places where there is no central water supply network.
Grundfos CMBE AUPD equipment:
Pump CM;
Automation unit PM1 or PM2;
Cable with plug.
Explanation of the name of the installation
Why Grundfos CMBE:
Unlike the installation discussed above, CMBE implements the function automatic maintenance constant pressure at flow rate at several water points.
Despite its technical characteristics, the installation is very compact.
All parts of the CME pump in contact with water are made of stainless steel.
AUPD Grundfos CMBE is ready for operation immediately after installation and connection to the power supply.
The CME pump has built-in modern electric motors MGE, which exceed the efficiency requirements of the energy efficiency class IE4.
Low noise level (up to 55 dB);
Dry running protection
Pressure and flow characteristics of Grundfos CMBE:
Country of origin: Hungary.
Factory warranty: 2 years.
Pumping station Grundfos SCALA2
Grundfos SCALA2 is a new generation compact automatic pumping unit. Distinctive feature SCALA2 is the presence of a built-in frequency converter, which allows you to maintain a constant pressure at variable flow. This is possible thanks to a sensor that measures the pressure in the system and sends a signal to the pump control unit, which compares the pressure level with the homeowner's needs. If the current and required levels differ, the frequency converter increases or decreases the pump performance, thereby equalizing the pressure in the system.
Where SCALA2 is used:
Can be used to increase pressure in the city water supply system;
In the water supply system from wells (the depth of which is no more than 8 m);
In the water supply system from storage tanks.
The SCALA2 pumping station is used in country houses, dachas, farms, vegetable gardens, as well as in large garden farms
Performance characteristics
Why Grundfos SCALA2:
The installation allows you to maintain constant water pressure at variable flow rates at different water intake points (up to 8 points).
Completely ready complete installation;
Implemented self-priming function (up to 8 meters);
Compactness;
The unit body is made of aluminum and wear-resistant plastic. Parts in direct contact with water are made of stainless steel.
The SCALA2 station is ready for use immediately after installation and connection to the power supply.
Smart protection against dry running.
Built-in cycling protection;
The insulation material of the installation allows installation not only indoors, but also outdoors (if the temperature is not lower than 0 degrees);
Operation is quieter than 47 dB.
Stable operation while maintaining technical characteristics at a pressure drop from 150 to 300 V.
Service 24. This service allows you to call a technician 24/7/365 at any time if problems arise with the installation. The service representative arrives with everything necessary equipment and must fix the fault within 24 hours or replace the pump with a new one. If the case is under warranty, all work is carried out absolutely free of charge!
Components of the SCALA2 installation:
Pump;
Electric motor with frequency converter;
Membrane tank with a volume of 0.65 l;
Pressure meter;
Control Panel;
Error indicator on the control unit;
Check valve;
Cable with plug
Control Panel
This is what the SCALA2 control panel looks like. Grundfos EYE is a technology with which you can easily determine the operating mode.
Country of origin: Serbia;
Warranty: 5 years
Video about the operation of SCALA2:
Garden pumps Grundfos JP
JP garden pumps from Grundfos have proven their worth in increasing network pressure both for garden watering and for filling or emptying tanks. The Grundfos JP pump will provide water supply from wells, reservoirs and wells (up to 8 meters deep);
This is a horizontal single-stage self-priming centrifugal pump. The pump power control is located on the terminal box. The delivery set includes a one and a half meter cable and a plug with a grounding contact. When equipped with PM 1 or PM 2 automation, the Grundfos JP pump turns into a full-fledged pumping unit.
Why Grundfos JP:
When used with a PM 1 or PM 2 unit, it becomes a complete automatic pumping unit.
Performance Charts.
Country of origin: Hungary;
2 year warranty.
Pressure booster units Grundfos JP Booster
Pressure boosting installation based on JP pumps - Grundfos JP Booster is an automatic pumping station, which, thanks to automation, starts and stops working depending on the pressure of the carrier with variable water consumption. When starting up for the first time, the pump must be filled with water - then the unit operates in self-priming mode.
JP Booster installations are used in the water supply network to increase pressure by drawing water from wells, reservoirs and boreholes (up to 8 m deep), including for filling and emptying tanks, for watering gardens and agricultural land.
Self-priming garden pump Grundfos JP;
Membrane tank;
Pressure switch;
Pressure gauge;
Cable;
Grounding plug
Explanation of type designation:
Advantages of the Grundfos JP Booster pumping unit:
The pump is equipped with an ejector, which allows water intake from a depth of up to eight meters;
Pump power control on the terminal box;
All working parts, namely: housing, shaft, Working wheel and connecting fittings are made of stainless steel, which significantly increases service life.
Highest quality membrane tank. The outside of the tank is coated with a double layer of epoxy paint. The connecting elements are made of stainless steel and the membrane is made of special type food rubber; steel with inside The tank does not come into contact with water thanks to the polypropylene shell - all this reduces the likelihood of corrosion to zero.
The design of the seals and air injection nipple is implemented so that the tank does not bleed air
Flow/pressure graph:
Country of origin: Hungary;
Warranty: 2 years
Grundfos MQ water supply systems
Grundfos MQ water supply installation to provide water supply from wells, reservoirs, wells, and increase pressure for watering gardens and agricultural land, filling and emptying tanks.
Benefits of installing Grundfos MQ:
Compactness. The unit is small in size and easy to install. There is no need for a large free space around the pump for installation.
Ease of operation. The control panel has an operating mode indicator and a power supply.
The MQ self-priming pump lifts water from a depth of up to 8 meters. For example, if there is no liquid in the supplied pipeline, the pump will raise water in less than five minutes.
The installation is excellent for increasing pressure from a tank or central water supply. When the pressure behind the pump drops below 1.5 bar or at a flow rate of 0.072 m3/h (1.2 l/h), the pump starts and stops working when use is stopped at the water collection points.
Availability protective functions. In case of dry running or overheating (for example, due to overload or clogging), the pump stops working, thereby protecting the engine from burnout.
Automatic fault reset function. If the pump starts running dry or is supplied Emergency Signal, the pump stops. Then, over the next 24 hours, every 30 minutes the installation starts, analyzes the system, and, if the error is resolved, continues to operate.
Low noise level. The pump is cooled by the pumped liquid, so it operates almost silently (less than 55 dB).
Pressure tank. The tank that is included with the installation allows you to reduce the number of repeated short-term starts in the event of leaks in the system, thereby reducing wear and tear on the installation.
Installation examples
Above are sequential examples of various applications of the MQ installation, in order from left to right:
A. To increase pressure in the main pipeline system;
B. Application example for water supply with a well;
C. For use in a water supply system with a storage tank.
Where:
1 – highest point of water intake;
2 – pipe fastenings;
3 – ball shut-off valve;
4a – suction pipe;
4b – pressure pipe;
5 – bypass;
6 – pressure reducing valve on the inlet side to protect against pressure above 3 bar;
7 – bypass valve on the pressure pipe to protect the system from pressures exceeding 7.5 bar after the pump.
8 – pressure gauge;
9 – main pipeline;
10 – Grundfos MQ pumping unit;
11 – check valve with mesh.
Performance characteristics of MQ3-35 and MQ3-45
Country of manufacture: Italy;
Factory warranty: 2 years;
Compact booster pumps Grundfos UPA and Grundfos UPA N
Grundfos UPA and Grundfos UPA N pumps are designed to increase pressure in an already operating cottage system. They are used to increase water pressure in showers and other water points, in front of washing machines and dishwashers, and in front of water heaters. Used in open systems, can connect directly to the network.
UPA booster pumps are available in four versions:
Grundfos UPA 15-90 – cast iron body with cataphoresis coating.
Grundfos UPA 15-90 N – stainless steel body.
Explanation of type designation
Design:
UPA 15-90 (N) – pumps with a wet rotor. The rotor is separated from the stator by a thin stainless steel sleeve. The electric motor is cooled thanks to the pumped liquid, and the absence of a fan makes the pump operate silently. Grundfos uses UPA in its pumps own system ceramic bearings, which increases the service life and reliability of the pump.
Flow/pressure characteristics
Advantages of the UPA 15-90 and UPA 15-90 N booster pumps:
Silence. The quiet operation of the pump allows the UPA to be installed in a house or apartment.
Work in three modes. Including automatic and manual.
Cataphoretic coating that protects working parts from corrosion.
Flow sensor. When you turn on the water at the water collection point, the UPA pump turns on, and when you turn it off, it turns off accordingly.
Dry running protection.
Possibility of installation directly on the pipeline.
Stainless steel housing (UPA 15-90 N).
Country of origin: China.
2 year warranty.
The Grundfos pumping station is a product of the company of the same name from Germany. The authority of the manufacturer is high, the demand for products is 50% of the world demand. When invariably high quality products, the company opens subsidiaries. Their products are adapted to the climatic characteristics of the region. In Russia, a branch operates in Istra; the quality of Grundfos is under the control of specialists from Germany. With high reliability, the equipment is sold at an affordable price.
Model range of pumping stations from a German manufacturer
Pumping stations are used in water systems for domestic and industrial purposes:
- Fire extinguishing pump stations are characterized by high performance and high pressure.
- Grundfos household pumping stations are used in private homes. They are compact and silent in operation.
- Boosting pumping stations are used in municipal water mains and in industry. They are called second lift stations.
Any of the listed equipment series is presented in various designs, meets certain tasks. The manufacturer has simplified the installation of the equipment as much as possible. An inexperienced summer resident can cope with the installation, following the instructions for servicing the Grundfos pumping station.
Characteristics of Grundfos products
The greatest demand is for equipment famous manufacturer in world agriculture. Here they are required for irrigation of land, to increase pressure in systems located far from water supply sources. The user can select equipment for irrigation or home water supply.
A special feature of Grundfos pumping stations is the thoughtful arrangement of units that form unified system. The special steel housing reliably protects the working element. The complex can pump water from open reservoirs, wells and wells. The MQ and JPB series are developed using the company’s technology, but are produced by subsidiaries only for their region, without the right to export.
JP pump series
The JP series represents centrifugal self-priming pumps, which are equipped with Grundfos JP Booster pumping stations. The pump is supplied with a hydraulic tank with a capacity of 24-60 liters, depending on the performance. The best watering system is an ejector-type station that supplies water from open reservoirs and pools.
The injection system lifts water from a depth of 25 meters, while the engine is located on the surface, and the lifting mechanism is lowered into the well. At the same time, the system operates almost silently.
The most famous of this series of equipment are the grundfos JP Basic 3pt pumping stations. Self-priming pump with submersible ejector has the best price-quality ratio of all household pumps this company. High performance, 3.6 cu. m/hour, water pressure 47 m. Art. and membrane hydraulic accumulator characterize the demand for equipment. During operation, the pump supplies water saturated with air without reducing productivity. Most often, the pump is used in private farmsteads.
Equipment series Grundfos Hydro jet JP is highly durable. Anti-corrosion coating is applied outside and inside. Reliable automation guides the process economy mode. If water flows for a long time, the pump turns off completely.
The pumps operate by creating a pressure of 5 or 6 atmospheres in the system. The station is equipped with battery tanks membrane type various capacities. The grundfos hydroijet jp5 pumping station for residential buildings is equipped with a 24 liter tank. But the system, in which a hydraulic accumulator with a capacity of 60 liters is installed, keeps the parameters more evenly. With a power of 0.75 kW, the pump has a head of 43 m and costs 13,800 rubles.
MQ pumps
Pumps complete with membrane tanks represent a series of stations for domestic use. The battery tank is separated by a membrane partition. In one part there is water, in the other part air is supplied under pressure. As a result, the pressure in the water system will always be stable, and the pump is less likely to receive a command to turn on. The equipment is produced with or without a hydraulic tank.
The grundfos mq 3-45 pump series works with a diaphragm storage tank. The system creates a pressure of up to 4.5 bar or 45 m of water. Art. Designed for organizing water supply to private houses. The device can be used as a booster. The productivity of the device is 3 cubic meters / hour. The system has self-priming from a depth of up to 8 meters. Pump weight 13 kg. The Grundfos 3-35 pumping station has similar characteristics, 35 meters of water column.
For the operation of these particular pumping stations, pressure drops are critical. The equipment operates stably at a voltage of 220-240 V; in other ranges the pump will fail. To ensure the safety of the equipment, it is necessary to use a voltage stabilizer. For rare switching, an additional storage tank is used.
Types of Grundfos pumping stations used in industry
The fire extinguishing station consists of pressurized water and foam supply systems. Type Grundfos pumps Hydro MX has more than 60 models. Equipment can be selected for different systems fire extinguishing:
- productivity – 1.1-55 kW, s automatic system launch;
- productivity – up to 120 cubic meters / hour;
- head – 145 m.
Grunfos pumping stations, capable of supplying foam, are the main tool in fire extinguishing installations. Such systems are expensive, starting from 882 thousand rubles.
Grundfos Hydro booster stations represent a new type of equipment. The stations serve to increase pressure in the water supply system. Grundfos Hydro 2000 pumping stations are in demand in the public utilities sector. The station is small-sized, operates in automatic mode, turning on when the pressure in the system decreases. Compact installation has technical characteristics:
- productivity – 600 cubic meters. m/hour;
- head – 144 m;
- maximum agent temperature - +70 0 C;
- working pressure – 16 bar.
The pump can be installed in a heating system.
The manufacturer supplies not only surface equipment, but also submersible pumping stations. Their cost is much higher, but the systems are the most reliable in operation.
The history of the Grundfos brand begins with the times of post-war devastation, when a small repair shop arose in Denmark, which grew into a powerful electrical giant with subsidiaries around the world. Today, in every corner of the planet there is at least one of its divisions that produces equipment according to the climate principle.
Grundfos equipment is widely used in various areas of the national economy - construction, agriculture, public utilities.
The structure of consumer demand for the previous year speaks for itself - about half of the goods in demand came from this manufacturer.
Features and classification of Grundfos pumping stations
Among pressure equipment, a significant part of the models belongs to the group automatic stations, which have a place in every home.
Their advantages are:
- practicality;
- economical energy consumption;
- excellent technical characteristics;
- compactness;
- a wide range of options for different situations;
- easy installation;
- acceptable price.
Depending on their intended use, they can be divided into several groups:
- household models - convenient and safe models for a private home;
- in submersible or surface versions;
- Boosting equipment – installed in utility networks and in production;
- Fire extinguishing apparatuses are powerful systems that create high water pressure.
Construction of Grundfos pumping stations
Pumping stations from this manufacturer have the typical characteristics of most other automated systems structure:
- electric motor;
- receiver;
- centrifugal impeller in internal cavity housings;
- 2 check valves;
- flow sensor;
- electronics control board.
Household modifications of Grundfos automatic stations
Suitable for a cottage or private home that requires regular water supply.
Available in several series:
Let's take a closer look at each of them.
Pumping stations “JP” series
Created on the basis of high-performance centrifugal units. They are equipped with a removable hydraulic accumulator and an ejector, allowing them to be used not only for shallow surface tanks, but also for a well or borehole reaching 25 m in depth.
A productive and compact model, which is considered the best value for money. Its package contains everything you need to start installing the device and long-term service.
Features of Grundfos JP Basic 3PT:
- multitasking - use not only to increase pressure in the water supply system, but also for drainage, irrigation, distillation of liquid from above-ground and underground sources;
- volumetric receiver;
- easy installation, which you can do yourself without involving specialists;
- material design of the structure, which provides anti-corrosion properties and protection against premature wear: aluminum body with chromium-nickel coating;
- absence of irritating noise - the device can be installed in residential premises;
- nice gray design products;
- light weight - transportable and easy to move.
Specifications:
- Electric motor – 0.85 kW;
- Head – 47 m;
- Suction height – 8 m;
- Receiver – 20 l;
- Weight – 18.5 kg.
An automatic pressure unit based on a self-priming pump and membrane accumulator. Equipped, in addition to the above elements, with an asynchronous electric motor, pressure control relay, pressure gauge and electric cable. It has a built-in ejector that allows operation in suction mode.
It has a principle of operation similar to the previous model. The number of starts per unit of time will depend on water consumption - if there is none, the pump operates in autonomous mode.
Advantages of Grundfos Hydrojet JP-6:
- reliable automation that almost never fails;
- thermal protection of the motor - you can operate the equipment at full power;
- a membrane receiver, which increases the intervals between subsequent starts, allows the engine not to work with a slight violation of the pressure;
- aluminum housing, top and inner part which is coated with an anti-corrosion coating for durable and successful operation;
- emphasis on chromium-nickel steel for other parts and working units;
- practicality and functionality - a variety of applications, no need for special maintenance and frequent repairs;
- unsuitable for contaminated sewage with abrasives and fibers - only clean potable or process water without impurities;
- t 0 C of the pumped liquid – up to +50 0 C;
- modern design.
Specifications:
- Electric motor – 1.4 kW;
- Throughput – 4.5 m 2 /h;
- Head – 48 m;
- Suction height – 8 m;
- Receiver – 60 l;
- Weight – 36 kg.
A less productive unit than the above considered model. It is characterized by the presence of a removable receiver, which saves the number of motor starts and reduces energy consumption.
It is a household booster and is used for water intake from wells and wells.
Advantages of Grundfos Hydrojet JP-5:
- high-quality materials and coatings;
- the hydraulic accumulator membrane is made of food-grade rubber - tightness, quick dismantling and replacement, work with drinking water, the properties of which it does not affect;
- fast and effective suction from depth;
- reliable anti-corrosion properties of the case, for which a special chromium-nickel alloy is used, and an additional protective coating;
- possibility of installation in warm rooms where air temperature reaches 40;
- adaptability to warm water – up to +55 0 C.
Specifications:
- Power – 0.775 kW;
- Head – 40 m;
- Suction depth – 8 m;
- Receiver – 24 (60) l;
- Weight – 17.1 kg.
MQ series pumps
Productive devices, the delivery set of which includes sealed membrane receivers and other standard devices that make the pumping station an autonomous self-regulating mechanism.
Pumping station "Grundfos" MQ 3-35
A unit that is easy to start working with: easy to install, requires minimal knowledge and user intervention, who can monitor its operation through an electronic display with a visualization function. Provides low energy consumption and does not create much noise, so it can be installed near rooms where adults and children sleep.
Advantages:
- reliable automation, the risk of failure of which is minimal;
- visual electrical panel for monitoring operating modes;
- multi-stage pressure regulation in the control relay;
- equipped with a check valve that prevents liquid from leaving the device;
- sealed capacious hydraulic tank, which reduces the frequency of engine starts, extends its service life and reduces the overall energy consumption of the station;
- complete with 2-meter electrical cable;
- compactness - the device can be installed on a small support, mounted under a sink or sink;
- the motor is not afraid of overheating - it is periodically (every half hour) cooled due to water flow;
- low noise;
- compliance of technical parameters and material equipment with all international sanitary and hygienic safety standards;
- availability of original spare parts that extend the already high production life of parts.
Specifications:
- Electric motor – 0.85 kW;
- Throughput – 3.5 m 2 /h;
- Head – 34 m;
- Suction height – 8 m;
- Receiver – 60 l;
- Weight – 13 kg.
Leading world experts unanimously declare that no analogues of this model have been created in the entire history of automated pressure devices. Performs a huge range of user tasks - from water supply to a home or utility room to watering crops, providing water to farms and filling large containers. It uses energy resources rationally and turns on only when the pressure drops after drawing a large amount of water. Briefly turning on the tap for a few seconds does not initiate the start of the motor, and thereby saves costs.
Peculiarities:
- pumping clean and slightly contaminated water, including rainwater runoff no pollutants;
- orientation only to warm water – up to +35 0 C;
- steel hydraulic part;
- protection against dry running in case of accidents in the system;
- thermal protection of the engine - a reason not to worry about intense work;
- equipped with a reverse valve;
- high class of electrical protection and electronics insulation.
Specifications:
- Electric motor – 1 kW;
- Throughput – 3.6 m 2 /h;
- Head – 45 m;
- Suction height – 8 m;
- Receiver – 0.4 l;
- Weight – 17 kg.
Complete pumping station "Grundfoss" Scala2
One of the latest developments of the company, which, according to experts, met consumer expectations. will become good option for a private home. Generates high pressure that will remain stable when the washing machine, washbasin and shower are operating simultaneously. You can see its device below.
Advantages:
- stable pressure characteristics that do not depend on the number of water intake points (maximum - 8);
- dry running protection;
- produce little noise at 47 dB;
- suction of water from 8-m depth;
- Possibility of installation outdoors if t 0 C air does not fall below 0;
- easy control.
Technical parameters of "Rock 2":
- Power – 2 kW;
- Feed – 3.6 m2/h;
- Head – 45 m;
- Suction – 8 m;
- Receiver – 0.65 l;
- Weight – 10 kg.
What to do if the Grundfos pumping station turns on frequently?
Among several types of malfunctions, this is one of the most common.
It may occur due to:
- depressurization of the receiver membrane - due to foreign debris or wear;
- absence compressed air in the hydraulic accumulator and insufficient pressure in the latter;
- damage check valve, which has ceased to perform its holding function.
All these breakdowns require immediate repair. You can correct them
do it yourself, but it is better to entrust this matter to specialists.
