The use of four-way valves is particularly important in heating, cooling and air conditioning systems, where precise control of temperature and fluid flow is crucial to achieving optimal performance and user comfort. These advanced valves not only enable precise mixing of liquids, but also direct them to different areas of the system, which allows for effective temperature control in different zones of the building or installation.
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How are four-way valves constructed?
The four-way valve is used in central heating installations. Suitable for various types of heating installations. It can also be used for steel boilers. Pay attention to the characteristic structure, namely it consists of a body formed into four ports, i.e. pipeline inputs/outputs, as well as an element with adjustable position located inside.
You should know that it is used to control not only the direction, but also the flow and intensity of liquids, e.g. water, in the entire installation. The pin, which is a regulatory element, plays an important role. It is sealed and extended outside the valve body. Remember that it is designed to be connected to an external drive, which means it can work with a control system, e.g. a boiler. You don't have to worry about damage and flow disruption. Of course, the material from which it is made is also important. It may, for example, be brass or cast iron. Thanks to this, such a four-way valve is resistant to high temperatures.
The use of a four-way valve in the central heating installation
The four-way mixing valve is perfect for central heating installations. These types of valves are durable and resistant to mechanical damage. Therefore, you do not have to worry that, for example, a temporary drop in temperature will translate into thermal comfort in the entire room. Brass valves also provide protection for the thermostat.
These types of valves protect against low-temperature corrosion, which could occur when the boiler operates at a low temperature and the temperature of the heating medium is insufficient. In such a case, gases would condense in the combustion chamber, and as we know, gases contain chemical substances. Therefore, they could damage not only the installation, but also the boiler. Additionally, corroded sheet metal could lead to uncontrolled exhaust gas flow, which poses a threat to health and life.
The role of the four-way valve in the installation is really important. It protects the boiler against low power. It also enables the creation of medium circulation. Heats the liquid in the internal circuit. In addition, it constitutes a barrier against water vapor condensation. The valve allows you to adjust the temperature. Its use is therefore necessary for equipment protection and safety. We must also mention that mixing valves prepare domestic hot water and give it priority during heating.
When to choose a four-way valve and when to choose a three-way valve
You can choose either a three-way or a four-way valve. Each of them has a slightly different system and a slightly different application. The three-way valve is used in underfloor heating systems and radiators. In turn, four-way valves are best used in solid fuel boilers. The three-way valve plays a very important role because it properly sets the water temperature. It also provides heat and protects radiators against sudden cooling. The use of four-way mixed valves is also very wide, namely they have an additional function. They can increase the temperature of circulating water that returns to the boiler.
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The Herz VUA-40 1/2" four-way angle valve is worth attention. It is suitable for two-pipe installations. In fact, the use of such a mixing valve ensures the safety of the installation. At the same time, please note that the power supply comes from the thermostatic insert. This model is perfect for a coal-fired boiler. , but also gas.
The Resideo Centra DN 20 Kvs 6.3 four-way valve may also be a good choice. It has a rotating mushroom. It allows flow in two directions. Thanks to this, the system works even more effectively. It is used in the heating system, but also in air conditioning, and it will work perfectly in each of these systems. This is a good alternative to three-way models with an actuator. The feature of such valves is not only mechanical resistance, but also pressure resistance. They ensure that heat pumps work properly. The risk of potential failures is also reduced.
A valve worth considering is also the Resideo Centra four-way mixing valve PN6, DN 65, flanged, Kvs = 63 . This is a really great model that will work well in powering heating installations, although it is not equipped with an actuator, ensuring maximum work efficiency. Its nominal pressure is 6 bar.