The use of four-way valves is particularly important in heating, cooling and air conditioning systems, where precise control of fluid temperature and flow is key to achieving optimum efficiency and user comfort. These advanced valves allow not only precise mixing of fluids, but also their routing to different areas of the system, allowing for effective temperature control in different areas of the building or installation.
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How are four-way valves constructed?
The four-way valve is used in central heating systems. It is suitable for various types of heating systems. It can also be used in steel boilers. Note the characteristic structure, namely it consists of a body, which is formed into four ports, i.e. pipeline inputs/outputs, as well as an element with adjustable position, which is located inside.
It is important to know that it is used to control not only the direction, but also the flow and intensity of the liquid, e.g. water in the entire installation. The stem, which is a regulating element, plays an important role. It is sealed and led out of the valve body. Remember that it is adapted to be connected to an external drive, which means that it can cooperate with a control system, e.g. a boiler. You also do not have to worry about damage and flow disruption. Of course, the material it is made of is also important. It can be brass or cast iron, for example. Thanks to this, such a four-way valve is resistant to high temperatures.
Application of a four-way valve in a 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. So you don't have to worry that, for example, a momentary drop in temperature will affect the 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 low temperatures 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. They could therefore damage not only the installation, but also the boiler. Additionally, corroded sheets could lead to uncontrolled exhaust gas flow, which is a threat to health and life.
The role of the four-way valve in the installation is really important. It protects the boiler from low power. It also allows the creation of a medium circuit. It heats the liquid in the internal circuit. In addition, it is a barrier to the condensation of water vapor. The valve allows for temperature regulation. Its use is therefore essential for the protection of equipment 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 or a three-way valve
You can choose either a three-way or four-way valve. Each of them has a slightly different system and slightly different application. A three-way valve is used in underfloor heating systems, as well as radiators. In turn, four-way valves are best used in a solid fuel boiler. A three-way valve plays a very important role, as it correctly sets the water temperature. It also supplies heat and protects radiators from 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 the water from the circuit, which returns to the boiler.
Four-way valves at the Onninen wholesaler
The Herz VUA-40 1/2" angle four-way valve is worthy of attention. It will work well in two-pipe installations. Indeed, the use of such a mixing valve ensures the safety of the installation. At the same time, note that the supply occurs from the side of the thermostatic insert. This model will work perfectly in a coal boiler, but also in a gas boiler.
A good choice may also be the four-way valve Resideo Centra DN 20 Kvs 6.3 . It has a rotary plug. It allows flow in two directions. Thanks to this, the system works even more efficiently. It is used in the heating system, but also in air conditioning and will work perfectly in each of these systems. It is a good alternative to three-way models with an actuator. A feature of such valves is not only mechanical resistance, but also resistance to pressure. 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 systems, although it is not equipped with an actuator, it ensures maximum work efficiency. Its nominal pressure is 6 bar.