The priority valve undoubtedly plays a very important role. It affects the safety of the entire installation, as well as the efficiency of work. It should be noted that the valve allows water to be distributed when the inlet pressure drops below a certain value. It is worth learning more about it and getting to know the best models from the Onninen wholesaler's offer.
Check priority valves at Onninen wholesaler
First connection of the priority valve
Properly performed work is essential in water installations. The priority valve can be installed in installations where there is a need to maintain the inlet pressure at a set level. Ensuring the appropriate water pressure affects the operation of the entire installation and allows it to operate effectively. Priority valves protect the pressure in the pipeline. It is worth noting that the inlet pressure can be adjusted.
In this case, for example, loosening the fastening nut is used. This device starts working when a drop is detected. Thanks to this, for example, uncontrolled water outflow will not occur. Simultaneous reduction of the outlet pressure prevents damage to the entire installation, so cutting off the flow to the domestic installation is necessary. The priority valve is open and works as a pressure regulator.
Connecting the impulse line in this case is not necessary. The use of valves is required by fire protection regulations. In the event of a fire, the use of water shut-off valves is to provide better property protection. It is also worth knowing that the valve can be mounted both vertically and horizontally, but also in intermediate positions. It is best to mount it directly behind the pump. Sometimes it is necessary to mount it at the water return point.
Where should priority valves be used?
Priority valves affect safety. They should be installed in the branches of the domestic and utility installation, as well as in the water supply cut-off. They will prove useful in the event of a fire or the need to draw water from the water supply system. In this case, it is necessary to ensure priority of water supply to services. In watered installations, it is an important component of the internal hydrant.
It can be used in installations equipped with a fire cap. Then, when a fire occurs, fire hoses are connected. Shut-off valves have specific pressure loss values. Of course, it is also necessary to ensure that they meet quality standards. First of all, the inlet connector should be threaded. In addition, the angle is also important, which should not be less than 90 degrees or greater than 135 degrees.
Principle of operation of the priority valve
The installation must be protected from exceeding the set pressure. Using a pressure limiter in the installation ensures that it will function properly. It is worth noting that the priority valve has a really wide range of applications. There is no need to worry that the installation will be damaged. The priority valve, or priority valve, controls the flow in the installation depending on the input pressure. Valves should be used wherever there is a possibility of limiting the input pressure, as well as when there is an appropriate amount of water. Priority valves limit the pressure at the inlet of the supply network. They may have a built-in solenoid valve. It is used to ensure priority supply, e.g. in the event of a fire. Valves can be used in both drinking water and industrial water installations. Note that shut-off valves can be installed in places with limited space.
These priority valves are lightweight, but they are characterized by high regulation accuracy. So you don't have to worry about fluctuations in the inlet pressure. Maintaining the set pressure is therefore very easy. There is no need to use energy to operate the valve, so by deciding to buy such a product, you gain the possibility of reducing and maintaining the pressure. You can therefore cut off the water supply, e.g. to the social and living installation when the pressure in the fire protection installation begins to drop. Thanks to this, the risk of damage is much lower. Priority valves with a pressure regulator are therefore a combination of a pressure regulator and a priority valve. They allow you to maintain the pressure. At the same time, they ensure high regulation accuracy and maintain the required pressure parameters.
An insufficient level can damage the system, which is why it is necessary to purchase a priority valve. This device, when it detects a drop in water pressure inside the fire protection system, cuts off its supply to the domestic system. There are also questions, such as whether the check valve quickly reduces the flow. The answer is simple, namely in systems that require constant pressure, check valves ensure a constant flow, which translates into better system efficiency, but also lower energy consumption. The priority valve guarantees the flow of a specific working medium in one direction, which is set. With a low torsion value, the valve can be operated very easily, even when the pressure is maximum.
How should the priority valve be set correctly?
The question arises whether it is necessary to install a valve in a fire protection system? Of course, the answer is yes. The valve is installed to protect the system, so its use is very important. It is also necessary to remember what the correct installation should look like. It should be installed in a place where the input pressure must be maintained at a set level. The valve is closed until the pressure at the input or inlet reaches a specified value.
Remember also that the valve can be mounted in various positions, from vertical to horizontal, to intermediate positions. It is important to know that it must be mounted in the direction of flow. It should be mounted so as not to burden the body. In addition, it is also necessary to remember to leave an appropriate clearance. A mesh is used to stop impurities. Ensuring the safety of the installation, but also efficiency is required by law. The valve can be mounted in any position, but on condition that the water flow is in the direction indicated by the arrow placed on the body. It is necessary to remember that a shut-off valve must be installed on both sides of the control valve.
Before use, the pipeline must be flushed to remove any contamination. To start it up, the adjustment screws must be unscrewed. The condition for proper operation is to open the ball valves. Remember also how important the pressure value is, which is why you should check the pressure gauge located on the pilot valve. In order to prevent water leakage, it is also necessary to use the appropriate one, which will increase the safety of the installation. Without the use of drainage, water may leak out, which in turn will result in damage to the installation.
The role of priority valves in the fire protection of buildings
Valves are typically used to ensure the right pressure of water supplied to homes, apartments, and public buildings. However, if a fire breaks out, such valves will provide the right pressure for the fire protection system, which reduces losses and allows for faster extinguishing. Very often, plastic pipes are used, which can quickly melt under the influence of fire, but this will also result in a decrease in pressure.
The supply will not work properly and the pressure will drop. Therefore, a priority valve is necessary, as it will prevent such a situation. It controls the pressure at both the inlet and outlet. In the event of a fire, the valve will maintain the water pressure. At the same time, it remains closed until the inlet pressure reaches a set value. When it opens, the inlet pressure will be reduced. They can be used in dry risers. For greater safety, a manual opening system is also used, which will prove useful in the event of a power failure. Legal provisions clearly require the use of such valves.
Of course, you can also opt for solenoid valves, which should be used wherever the flow of the medium is much larger. They can be manually controlled. They are therefore a good choice in public places. It is also recommended to periodically check the operation. This can be done, for example, during each inspection of the fire protection system. Responsible use of valves affects the safety of people, property, but also limits losses. A safety valve is a check valve that protects against exceeding a certain pressure value. It maintains one flow direction, sending the medium so that it does not flow back.
Priority valves at the Onninen wholesaler
The Resideo Braukmann DH300, DN50 priority valve is worth noting. It is a device that is used to control both the flow of water and other types of media. It operates on an electromagnetic principle. It provides maximum functionality. It can be controlled remotely. In this case, a special control panel is used, so the operator can change the valve setting, but without the need for physical presence. To meet the needs of the most demanding users, the valve has an alarm function that lets you know when there is a failure or low pressure in the hydrant network. The valve then switches to the second power source. Thanks to this, there is no interruption in the system's operation.
A good choice may also be the BERMAD 730,DN50 priority valve . It maintains its parameters even in the event of a power failure. The valve is hydraulically controlled. This model demonstrates not only mechanical resistance or resistance to corrosion, but also to pressure fluctuations. It is essential when a fire extinguishing operation takes place. It then provides quick access to water.
The Danfoss EV220B DN80 3" automatic priority valve will also be suitable. It is made of brass and stainless steel. As in previous models, the manufacturer Danfoss has used strong and reliable seals. Note that the permissible differential pressure is as much as 16 bar. Thanks to this, this valve can operate in really difficult conditions.