The circulation pump provides fluid movement in the heating circuit and sets the speed of its movement, due to which the room warms up evenly and with the least expenditure of thermal energy.
When choosing a pump, you should first 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 should be the throughput;
- maximum head (in meters) - here you need to look at the length of the heating circuit, the longer the length, the larger this parameter should be;
- power consumption - helps to determine operating costs (how much the pump consumes electricity);
- temperature limits - the upper and lower temperature of the working fluid, which can pass through the device without harm to it;
- the operating position of the device is horizontal, vertical or universal.
Grundfos UPS 25-40 180 (45 W)
A lightweight and compact pump from a well-known Danish brand is capable of delivering a maximum pressure of 4 m, while consuming only 45W. The capacity of the model is from 1.7 to 3 cubic meters. m / h The device is additionally equipped with a switch and an electric motor. It can work both in vertical and horizontal position. Installation is carried out both in open and closed heating systems with a working diameter of 25 mm.
The main application of the pump Grundfos UPS 25-40 found in heating private homes. However, manufacturers talk about the possibility of professional use of equipment. After the first start-up, the heating device increases the efficiency of heat transfer, the room warms up evenly.
- reliable and durable (it works properly beyond the established service life - 10 years);
- economically consumes electrical energy;
- It works almost silently.
- high price;
- outdated model.
Vortex TsN-25-6 (90 W)
This pump is bright orange in its external parameters inspires confidence: a cast iron body, massiveness, reliable assembly. Connection nuts for fastening are included with the product. The Vortex TsN-25-6 is mounted only in an upright position.
The model operates in three modes with a capacity of up to 50 l / min (3 cubic m / 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 should not exceed 110 ° C in temperature.
The device is designed to provide fluid circulation in heating systems, central heating installations, circular cold and hot water supply lines, as well as in cooling, air conditioning, and industrial water pumping systems.
- affordable price;
- long service life and reliability;
- high performance.
- heavy (weight 3.5 kg);
- noisy;
- consumes a large amount of electricity.
Wilo Star-RS 25 / 6-180 (84 W)
This device is a development of a German manufacturer, so it is distinguished by practicality and safety. On the case there are special ebbs that simplify the installation of the device (it is installed only horizontally). It facilitates the installation of the pump and the spring construction of the terminals, as well as the fact that the product has a two-way connection. In addition, Wilo Star-RS is equipped with a special protection system - it is resistant to blocking currents, which ensures the stability of the device for a long time. The device does not need those. maintenance, can be manually controlled by speed control. Made of reliable materials: cast iron, stainless steel.
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 pressure is up to 6 m.
This model has found its application in cooling systems, air conditioning, underfloor heating, as well as hot water supply for private and apartment buildings.
- additional motor protection against blocking currents;
- long service life;
- convenient installation and lack of need for maintenance.
- high price;
- fastens only horizontally.
JEMIX WP-15 / 9-25 AUTO (120 W)
Pump from a Russian manufacturer of surface mount. Its main purpose is to increase the pressure of the cold water supply (provides additional pressure in the cold water supply system). This equipment does not work with hot temperatures. The most admissible temperature of a working liquid (pure water) + 70 ° C.
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, or, for example, when the main pump does not “pull” the necessary pressure.
The bandwidth of the device is limited to 1.5 cubic meters. m / h, but the maximum head reaches as much as 9 m.
- high level of water rise;
- low price;
- universal installation (both horizontal and vertical).
- consumes a very large amount of energy;
- low bandwidth;
- the upper limit of the working temperature is only + 70 ° C.
Grundfos ALPHA1 L 25-40 180 (25 W)
Grundfos ALPHA1 L 25-40 is an economical solution from a well-known Danish manufacturer of heating equipment. The model features a robust housing made of cast iron and the ability to operate in two proportional pressure modes, three speeds and two levels of constant pressure. This new generation device can be controlled by a PWM signal (a method of obtaining an analog signal using a digital source) and, due to this, work with a “smart home” and electric boilers.
In its operation, the pump is not energy-consuming: 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 pure water in controlled heating systems. It can also be used in floor heating systems.
- silent work;
- PWM control
- economical consumption of electric energy.
- very high price;
- smaller range of working temperature in comparison with competitors.
CALIBER NTs-15 / 6-130 (2018) (90 W)
Household pump at a very economical price. Designed for circulation of cold and hot clean water from +2 to + 110 ° C in private heating systems.
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). It is installed in any position, both horizontally and vertically. The device has three operating speeds, the maximum power consumption is 90 W (nominal - 48 W), throughput - 2.7 cubic meters. m / h and the maximum pressure of the liquid is 6 m.
Initially, the noiseless operation of the device is noted, but after a while the CALIBER NTs-15 / 6-130 begins to make noise. Low cost compensates for this error.
- the most affordable price;
- compactness;
- stable operation during the warranty period.
- unreliable assembly;
- there is no network cable included;
- there are plastic parts in the design.
Wilo Yonos PICO 25 / 1-6 (40 W)
This pump from the German manufacturer is distinguished by a combination of a reliable classic cast-iron casing and a modern display and electronic control panel. By purchasing Wilo Yonos PICO 25 / 1-6, you get a device: with an EC motor that is resistant to blocking currents; with an adjustable power level from 4 to 40 watts; with the ability to adjust the pressure (variable or constant); with the functions of the air outlet of the rotor.
This is a very safe model, starting from the moment you connect to the power. The design used a sealed block, which 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 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 a building block.
- high level of efficiency due to modern ECM technology at low energy costs;
- low noise level;
- Compact design allows you to use various installation methods.
- very high price;
- suitable for servicing houses with not more than six apartments.
