The circulation pump ensures the movement of the liquid in the heating circuit and sets the speed of its movement, due to which the room heats up evenly and with the lowest heat energy consumption.
When choosing a pump, first of all, you should pay attention to the following parameters:
- throughput (measured in cubic meters / h or l / min) - this characteristic is determined by the size of the pipes, the larger they are in diameter, the greater the throughput should be;
- maximum head (in meters) - here you need to look at the length of the heating circuit, the longer the length, the more this parameter should be;
- power consumption - helps determine operating costs (how much electricity the pump consumes);
- temperature limits - the upper and lower temperature of the working fluid that can pass through the device without harm to it;
- the working position of the device is horizontal, vertical or universal.
Grundfos UPS 25-40 180 (45 W)
The main application of the Grundfos UPS 25-40 pump is found in heating private houses. However, manufacturers talk about the possibility of professional use of the equipment. After the first start-up, the heating device increases the efficiency of heat transfer, the room heats up evenly.
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- reliable and durable (it works properly over the established service life - 10 years);
- economically consumes electrical energy;
- works almost silently.
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- high price;
- outdated model.
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VORTEX TsN-25-6 (90 W)
The model operates in three modes with a capacity of up to 50 l / min (3 cubic meters / h) and a power consumption of 90 watts. The level of water rise can reach 6 m. Work is carried out only with clean water, which temperature should not exceed 110 ° C.
The device is designed to circulate liquid in heating systems, central heating installations, circular lines for cold and hot water supply, as well as in cooling, air conditioning, and industrial water pumping systems.
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- affordable price;
- long service life and reliability;
- high performance.
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- heavy (weight 3.5 kg);
- noisy;
- consumes a large amount of electricity.
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Wilo Star-RS 25 / 6-180 (84 W)
As for the technical parameters, the adjustable power of the device is from 43 to 84 W, the operating temperature range is from -10 to + 110 ° C, the throughput is up to 3.8 cubic meters. m / h, and the maximum head is up to 6 m.
This model has found its application in cooling systems, air conditioning, underfloor heating, as well as hot water supply in private and apartment buildings.
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- additional protection of the motor against blocking currents;
- long service life;
- convenient installation and no need for maintenance.
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- high price;
- only mounted horizontally.
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JEMIX WP-15 / 9-25 AUTO (120 W)
The model consumes a fairly large amount of energy - 120 watts. However, it is not designed for round-the-clock operation, but turns on only in cases of pressure drop in the water supply system, or, for example, when the main pump "does not pull" the required pressure.
The throughput of the device is limited to 1.5 cubic meters. m / h, but at the same time the maximum head reaches as much as 9 m.
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- high level of water rise;
- low price;
- universal installation (both horizontal and vertical).
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- consumes a very large amount of energy;
- small bandwidth;
- the upper limit of the operating temperature is only + 70 ° C.
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Grundfos ALPHA1 L 25-40 180 (25 W)
In its operation, the pump is not energy-intensive: the maximum power is only 25W, while the operating temperature range is from 2 to 95 ° C. The maximum level of water rise is 4.4 m, and the throughput is 2.8 cubic meters. m / hour.
The pump is designed to circulate glycol-containing liquids or clean water in regulated heating systems. Can also be used in underfloor heating systems.
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- silent work;
- PWM signal control;
- economical consumption of electrical energy.
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- very high price;
- smaller operating temperature range compared to competitors.
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CALIBER NTs-15 / 6-130 (2018) (90 W)
The body of the product is made of durable cast iron and at the same time has small dimensions and weight (up to 2.5 kg). Installed in any position, both horizontally and vertically. The device has three operating speeds, the maximum power consumption is 90 W (nominal - 48 W), the throughput is 2.7 cubic meters. m / h and the limiting liquid head is 6 m.
Initially, the silent operation of the device is noted, but after the time expires, CALIBR NTs-15 / 6-130 begins to make noise. The low cost compensates for this error.
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- the most affordable price;
- compactness;
- stable work during the warranty period.
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- unreliable assembly;
- no network cable included;
- there are plastic parts in the design.
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Wilo Yonos PICO 25 / 1-6 (40 W)
It is a very safe model from the very moment you plug it in. The design uses a sealed shoe that snaps into the socket. For a safe start, the pump has a high starting torque.
The maximum pressure level of pure water reaches 6 m, and the productivity is equal to 3.7 cubic meters. m / h. Not so much, but enough to provide the heating system of a private house, a small cottage, as well as an object of blocked development.
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- high level of efficiency due to modern ECM technology with low energy consumption;
- low noise level;
- the compact design allows for a variety of mounting methods.
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- very high price;
- suitable for servicing houses with no more than six apartments.
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